def process(self, docset):
# Give them to online LDA
(gamma, bound) = self.old_alpha.update_lambda_docs(docset)
# Compute an estimate of held-out perplexity
(wordids,
wordcts) = onlineldavb.parse_doc_list(docset, self.old_alpha._vocab)
perwordbound = bound * len(docset) / (self.D * sum(map(sum, wordcts)))
print("%d: rho_t = %f, held-out perplexity estimate = %f" %
(self.iteration, self.old_alpha._rhot, numpy.exp(-perwordbound)))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (self.iteration % 10 == 0):
numpy.savetxt('lambda-%d.dat' % self.iteration,
self.old_alpha._lambda)
numpy.savetxt('gamma-%d.dat' % self.iteration, gamma)
# This prints the top words of the topics after each mini batch
for k in range(0, len(self.old_alpha._lambda)):
lambdak = list(self.old_alpha._lambda[k, :])
lambdak = lambdak / sum(lambdak)
temp = zip(lambdak, range(0, len(lambdak)))
temp = sorted(temp, key=lambda x: x[0], reverse=True)
print('topic %d:' % (k))
# feel free to change the "53" here to whatever fits your screen nicely.
for i in range(0, 5):
print('%20s \t---\t %.4f' %
(self.vocab[temp[i][1]], temp[i][0]))
print()
self.iteration = self.iteration + 1
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
# The number of documents to analyze each iteration
#batchsize = 64
batchsize = 32
# The total number of tweets
#D=297861
D = 1163
# The number of topics
#K = 20
K = 10
# How many documents to look at
if (len(sys.argv) < 2):
documentstoanalyze = int(D/batchsize)
else:
documentstoanalyze = int(sys.argv[1])
# Our vocabulary
vocab = file('dictnostops.txt').readlines()
W = len(vocab)
#open rawdata
#train_file = open("congress_train.txt")
train_file = open("text.txt")
train = train_file.readlines()
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
#olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7)
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 128., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
iter = 0
for iteration in range(0, documentstoanalyze):
# Download some articles
#(docset, articlenames) = \
#wikirandom.get_random_wikipedia_articles(batchsize)
docset = train[iter:(iter+batchsize)]
iter+=batchsize
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
print wordids
print wordcts
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
numpy.savetxt('lambda-%d.dat' % iteration, olda._lambda)
numpy.savetxt('gamma-%d.dat' % iteration, gamma)
def main(doc_list, vocab_file):
batch_size = 64
D = len(doc_list) # number of documents
K = 100 # number of topics
vocab = file(vocab_file).readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7)
# Run until we've seen D documents.
for iteration in range(0, D):
doc_set = doc_list[batch_size*iteration:(iteration+1)*batch_size]
# Give them to online LDA
(gamma, bound) = olda.update_lambda_docs(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % (iteration, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
numpy.savetxt('lambda-%d.dat' % iteration, olda._lambda)
numpy.savetxt('gamma-%d.dat' % iteration, gamma)
def runLDA(self):
for iteration in range(0, self.__documentstoanalyze):
#Retrieve texts
docset=self.__doc[iteration*self.__batchsize:iteration*self.__batchsize+self.__batchsize]
# Give them to online LDA
(gamma, bound) = self.__ldaObj.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, self.__ldaObj._vocab)
perwordbound = bound * len(docset) / (self.__documentstoanalyze * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, self.__ldaObj._rhot, numpy.exp(-perwordbound))
# Save a temporary lambda for this iteration
temp_lambda = self.__ldaObj._lambda
# Save lambda and gamma
if (iteration == 0):
self.__lambda_all = temp_lambda
else:
self.__lambda_all = numpy.concatenate((self.__lambda_all,temp_lambda), axis=0)
if (iteration == 0):
self.__gamma_all = gamma
else:
self.__gamma_all = numpy.concatenate((self.__gamma_all,gamma), axis=0)
numpy.savetxt('./data/lambda.dat', self.__lambda_all)
numpy.savetxt('./data/gamma.dat', self.__gamma_all)
def scanAllDocs(cursor):
n = 0
row = cursor.fetchone()
for iteration in range(0, documentstoanalyze + 1):
# Download some articles
docset = list()
i = 0
while row is not None and i < BATCHSIZE:
docset.append(row.MyText)
row = cursor.fetchone()
i += 1
n += i
print ("Docs analyzed: ", n)
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print ('%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound)))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 100 == 0):
numpy.savetxt('lambda_{0}-{1}.dat'.format(K, iteration), olda._lambda)
numpy.savetxt('gamma_{0}-{1}.dat'.format(K, iteration), gamma)
if n >= D-1:
numpy.savetxt('lambda_{0}-final.dat'.format(K), olda._lambda)
numpy.savetxt('gamma_{0}-final.dat'.format(K), gamma)
break
def run_lda(meaningful_words_path, batchsize, K, GAMMA_ITER_TIMES):
t = Task.create_new_lda_task()
global file_counts, g_all_files
file_counts = calc_file_counts()
D = file_counts
t.status = Task.TASK_STATUS_STARTED
t.save()
try:
# Remove the formmer results
# TODO: save it in dababases
os.popen("rm yls_app/tools/lambda*")
os.popen("rm yls_app/tools/gamma*")
# How many documents to look at
documentstoanalyze = int(D/batchsize) + 1
print 'target iteration %d'%(documentstoanalyze)
# Our vocabulary, we didn't use vocabulary.
vocab = read_vocab(meaningful_words_path)
# Keep track of the last iteration
last_iteration_perplexity = 0.0
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7, GAMMA_ITER_TIMES)
# Run until we've seen all documents.
for iteration in range(documentstoanalyze):
# print 'iteration ... %d'%iteration
# Download some articles
docset = get_article(iteration * batchsize, batchsize)
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
t.infomation = '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
last_iteration_perplexity = numpy.exp(-perwordbound)
print perwordbound,bound
if iteration == documentstoanalyze -1:
break
print '%d,%f'%(iteration,last_iteration_perplexity)
t.status = Task.TASK_STATUS_STARTED
t.save()
#print 'perplexity: %f'%(last_iteration_perplexity)
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
#if (iteration % 10 == 0):
#numpy.savetxt('lambda-%d.dat' % iteration, olda._lambda)
#numpy.savetxt('gamma-%d.dat' % iteration, gamma)
#
numpy.savetxt(LDARunner.LAMBDA_FILE, olda._lambda)
numpy.savetxt(LDARunner.GAMMA_FILE, gamma)
except Exception,e:
print e
t.infomation = "Exception:" + e.message
Task.finish_task(t, False)
def main():
# LDA: a documents contains all the keywords of some journal/conference
# equivalent to cluster keywords over journals/conferences
journal_or_conference = sys.argv[1]
num = int(sys.argv[2])
conn = jcke.get_db_conn()
# default (num <=0 or > max number): figure out all the journals/conferences keywords
if num <= 0 or (num >= 15151 and journal_or_conference == "journal") or (num >= 4545 and journal_or_conference == "conference"):
query = """
SELECT COUNT(*) FROM ##journal_or_conference##
"""
query = query.replace("##journal_or_conference##", journal_or_conference)
conn.cursor.execute(query)
num = conn.cursor.fetchall() # number of journals/conferences to process
# document parsing
journal_conf_list = os.listdir("journal_conf_keyword")
# check if txt files exist, then generate those docs
if not num == len(journal_conf_list):
jcke.journal_conf_keyword_generation(conn, num, journal_or_conference)
journal_conf_list = os.listdir("journal_conf_keyword")
# The number of journal/conference keyword sets in each batch
batchsize = lambda num: num if num <= 100 else 100
batch = batchsize(num)
iteration_times = int(num/batch)
# The total number of journals/conferences
DocNum = lambda journal_or_conference: 15151 if journal_or_conference == "journal" else 4545
D = DocNum(journal_or_conference)
# The number of topics
K = 100 # maybe some other numbers
# Our vocabulary : we need some vocabulary set!
vocab = dict()
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
online_LDA = lda.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much* sooner than this.)
for iteration in range(0, iteration_times):
# getting documents (keyword sets)
if iteration != iteration_times - 1:
journal_conf_keyword_list = jcke.input_journal_conf_keywords(journal_conf_list[iteration * batch : (iteration + 1) * batch])
else:
journal_conf_keyword_list = jcke.input_journal_conf_keywords(journal_conf_list[iteration * batch :])
# online LDA for keyword sets
# here we update the relative function in the package (dangerous!)
online_LDA._vocab = jcke.vocabulary_generation(journal_conf_keyword_list, online_LDA._vocab)
(gamma, bound) = online_LDA.update_lambda(journal_conf_keyword_list)
# Compute an estimate of held-out perplexity
(keywordids, keywordcts) = lda.parse_doc_list(journal_conf_keyword_list, online_LDA._vocab)
perkeywordbound = bound * len(journal_conf_keyword_list) / (D * sum(map(sum, keywordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, online_LDA._rhot, numpy.exp(-perkeywordbound))
# Save lambda, the parameters to the variational distributions over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in the last iteration.
numpy.savetxt('lambda-%s.dat' % journal_or_conference, online_LDA._lambda)
numpy.savetxt('gamma-%s.dat' % journal_or_conference, gamma)
def main():
articles = list()
artnames = list()
for line in file('./jacm/withIDAbstracts.txt').readlines():
combo = line.split('\t')
artnames.append(combo[0])
articles.append(combo[1])
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
# The number of documents to analyze each iteration
batchsize = 1
# The total number of documents in Wikipedia
D = len(artnames)
# The number of topics
K = 54
# How many documents to look at
documentstoanalyze = len(artnames)
# Our vocabulary
vocab = file('./dictnostops.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1. / K, 1. / K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
for iteration in range(0, D):
# Download some articles
docset = list()
docset.append(articles[iteration])
articlenames = list()
articlenames.append(artnames[iteration])
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
print bound
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
numpy.savetxt('./simpleLDA/gamma-%d.dat' % iteration, gamma)
if (iteration % 50 == 0 or iteration == 616):
numpy.savetxt('./simpleLDA/lambda-%d.dat' % iteration,
olda._lambda)
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
# The number of documents to analyze each iteration
batchsize = 100
# The total number of documents in Wikipedia
D = 1000
# The number of topics
K = 100
# How many documents to look at
documentstoanalyze = int(D / batchsize)
# Our vocabulary
vocab = file('./com_all_words.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1. / K, 1. / K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
for iteration in range(0, documentstoanalyze):
# Download some articles
docset = []
counts = []
linecache.clearcache()
startpoint = iteration * batchsize + 1
# get the paper keywords in batches
for i in range(batchsize):
f1 = open('com_all_key.txt', 'r')
f2 = open('com_all.txt', 'r')
docset.append(
linecache.getline('com_all_key.txt', min(D,
startpoint + i))[:-1])
counts.append(
linecache.getline('com_all.txt', min(D, startpoint + i))[:-1])
# Give them to online LDA
# print docset[0]
(gamma, bound) = olda.update_lambda(docset, counts)
# Compute an estimate of held-out perplexity
(wordids,
wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab, counts)
# print [olda._vocab[x] for x in docset[0].split(';')], wordids[0], wordcts[0]
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
numpy.savetxt('lambda_paper-%d.dat' % iteration, olda._lambda)
numpy.savetxt('gamma_paper-%d.dat' % iteration, gamma)
def main():
# The number of documents to analyze each iteration.
batchsize = args.batchsize
# The total number of documents in the corpus.
D = args.num_docs
# The number of topics.
K = args.num_topics
# How many documents to look at
documentstoanalyze = int(D / batchsize)
# The vocabulary
vocab = file(args.vocab_file).readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
alpha = 1. / K # prior on topic weights theta
eta = 1. / K # prior on p(w|topic) Beta
tau_0 = args.tau_0 # learning parameter to downweight early documents
kappa = args.kappa # learning parameter; decay factor for influence of batches
olda = onlineldavb.OnlineLDA(vocab, K, D, alpha, 1. / K, tau_0, kappa)
dataset_file = open(args.dataset)
start = time.time()
for iteration in range(0, documentstoanalyze):
# Read a batch of articles.
docset = batch_read(dataset_file, batchsize)
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
i = iteration
pct = round((i * 1.0 / documentstoanalyze) * 100, 2)
elapsed = int(time.time() - start)
Printer(
"Processed {0} batches. ~ {1}% complete. Elapsed time: {2}s".
format(i, pct, elapsed))
if (iteration % args.model_out_freq == 0):
numpy.savetxt(
'{0}lambda-{1}.dat'.format(args.outdir, iteration),
olda._lambda)
numpy.savetxt(
'{0}gamma-{1}.dat'.format(args.outdir, iteration), gamma)
numpy.savetxt('{0}lambda-final.dat'.format(args.outdir), olda._lambda)
numpy.savetxt('{0}gamma-final.dat'.format(args.outdir), gamma)
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
# The number of documents to analyze each iteration
batchsize = 100
# The total number of documents in Wikipedia
D = 1000
# The number of topics
K = 100
# How many documents to look at
documentstoanalyze = int(D/batchsize)
# Our vocabulary
vocab = file('./com_all_words.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
for iteration in range(0, documentstoanalyze):
# Download some articles
docset = []
counts = []
linecache.clearcache()
startpoint = iteration * batchsize + 1
# get the paper keywords in batches
for i in range(batchsize):
f1 = open('com_all_key.txt','r')
f2 = open('com_all.txt', 'r')
docset.append(linecache.getline('com_all_key.txt', min(D, startpoint + i))[:-1])
counts.append(linecache.getline('com_all.txt', min(D, startpoint + i))[:-1])
# Give them to online LDA
# print docset[0]
(gamma, bound) = olda.update_lambda(docset, counts)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab, counts)
# print [olda._vocab[x] for x in docset[0].split(';')], wordids[0], wordcts[0]
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
numpy.savetxt('lambda_paper-%d.dat' % iteration, olda._lambda)
numpy.savetxt('gamma_paper-%d.dat' % iteration, gamma)
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
# The number of documents to analyze each iteration
batchsize = 64
# The total number of documents in Wikipedia
D = 3.3e6
# The number of topics
K = 100
# How many documents to look at
if (len(sys.argv) < 2):
documentstoanalyze = int(D/batchsize)
else:
documentstoanalyze = int(sys.argv[1])
# Our vocabulary
vocab = file('./dictnostops.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
for iteration in range(0, documentstoanalyze):
# Download some articles
(docset, articlenames) = \
wikirandom.get_random_wikipedia_articles(batchsize)
# Give them to online LDA
print docset[0]
print docset[1]
print docset[2]
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
numpy.savetxt('lambda-%d.dat' % iteration, olda._lambda)
numpy.savetxt('gamma-%d.dat' % iteration, gamma)
def main():
# The number of documents to analyze each iteration.
batchsize = args.batchsize
# The total number of documents in the corpus.
D = args.num_docs
# The number of topics.
K = args.num_topics
# How many documents to look at
documentstoanalyze = int(D/batchsize)
# The vocabulary
vocab = file(args.vocab_file).readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
alpha = 1./K # prior on topic weights theta
eta = 1./K # prior on p(w|topic) Beta
tau_0 = args.tau_0 # learning parameter to downweight early documents
kappa = args.kappa # learning parameter; decay factor for influence of batches
olda = onlineldavb.OnlineLDA(vocab, K, D, alpha, 1./K, tau_0, kappa)
dataset_file = open(args.dataset)
start = time.time()
for iteration in range(0, documentstoanalyze):
# Read a batch of articles.
docset = batch_read(dataset_file, batchsize)
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
i = iteration
pct = round((i * 1.0 / documentstoanalyze) * 100, 2)
elapsed = int(time.time() - start)
Printer("Processed {0} batches. ~ {1}% complete. Elapsed time: {2}s"
.format(i, pct, elapsed))
if (iteration % args.model_out_freq == 0):
numpy.savetxt('{0}lambda-{1}.dat'.format(args.outdir, iteration), olda._lambda)
numpy.savetxt('{0}gamma-{1}.dat'.format(args.outdir, iteration), gamma)
numpy.savetxt('{0}lambda-final.dat'.format(args.outdir), olda._lambda)
numpy.savetxt('{0}gamma-final.dat'.format(args.outdir), gamma)
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
# The number of documents to analyze each iteration
batchsize = 64
# The total number of questions on Stack Overflow
D = 3.3e6
# The number of topics
K = 50
# How many documents to look at
if (len(sys.argv) < 2):
documentstoanalyze = int(D / batchsize)
else:
documentstoanalyze = int(sys.argv[1])
# Our vocabulary
vocab = file('./vocab2.txt').readlines()
W = len(vocab)
# Our set of questions from Stack Overflow
questions = QuestionSet(datafilename)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1. / K, 1. / K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
print 'processing', documentstoanalyze
for iteration in range(0, documentstoanalyze):
# Download some articles
(docset, articlenames) = questions.get_batch(batchsize)
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
numpy.savetxt('lambda-%d.dat' % iteration, olda._lambda)
numpy.savetxt('gamma-%d.dat' % iteration, gamma)
def updateLda(olda, docset, gamma=None, nIts=10):
D = olda._D
for iteration in range(0, nIts):
# Run online LDA with current document set
(gamma, bound) = olda.update_lambda(docset, gamma)
# Compute an estimate of held-out perplexity
(_, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: held-out perplexity estimate = %f' % \
(iteration, numpy.exp(-perwordbound))
return (olda._lambda, gamma, olda)
def main():
"""
Loads and analyzes tweets
"""
# The number of documents to analyze each iteration
batchsize = 1000
# The total number of documents in Wikipedia
D = 1.0e6
# The number of topics
K = 50
# How many documents to look at
if (len(sys.argv) < 2):
documentstoanalyze = int(D/batchsize)
else:
documentstoanalyze = int(sys.argv[1])
# Our vocabulary
vocab = file('./dictnostops.txt').readlines()
W = len(vocab)
# Load documents
tweets = file('./tweets_linebyline.txt').readlines()
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.9)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
for iteration in range(0, documentstoanalyze):
# Give some documents to online LDA
start = iteration*batchsize
end = (iteration+1)*batchsize - 1
(gamma, bound) = olda.update_lambda(tweets[start:end])
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(tweets[start:end], olda._vocab)
perwordbound = bound * len(tweets[start:end]) / (D * sum(map(sum, wordcts)))
print '%d (%d - %d): rho_t = %f, held-out perplexity estimate = \t %f' % \
(iteration, start, end, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
numpy.savetxt('data_lda/lambda-%d.dat' % iteration, olda._lambda)
numpy.savetxt('data_lda/gamma-%d.dat' % iteration, gamma)
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
# The number of documents to analyze each iteration
batchsize = 64
# The total number of documents in Wikipedia
D = 3.3e6
# The number of topics
K = 100
# How many documents to look at
if len(argv) < 2:
documentstoanalyze = int(D/batchsize)
else:
documentstoanalyze = int(argv[1])
# Our vocabulary
vocab = file('./dictnostops.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
for iteration in range(0, documentstoanalyze):
# Download some articles
docset, articlenames = \
wikirandom.get_random_wikipedia_articles(batchsize)
# Give them to online LDA
gamma, bound = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
wordids, wordcts = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if iteration % 10 == 0:
print "Iteration: ", iteration
numpy.savetxt('lambda.dat', olda._lambda)
numpy.savetxt('gamma.dat', gamma)
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
doc_files=sys.argv[1]
(docset, articlenames) = \
load_documents(doc_files)
D=len(docset)
# of topics
K = int(sys.argv[2])
# Our vocabulary
vocab = file('./dictnostops_test.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
'''kappa set to 0 to eliminate decay'''
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print ' rho_t = %f, held-out perplexity estimate = %f' % \
( olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
print (olda._lambda.shape)
print (gamma.shape)
numpy.savetxt('lambda.dat', olda._lambda)
numpy.savetxt('gamma.dat', gamma)
def make_topic_columns(lda, data, K, D, batchsize):
questions = QuestionSet(data)
allgamma = numpy.zeros((len(data), K))
for iteration in range(0, len(data) / batchsize):
start = iteration * batchsize
end = start + batchsize
# Download some articles
(docset, articlenames) = questions.get_batch(start, end)
# Give them to online LDA
(gamma, bound) = lda.update_lambda(docset)
allgamma[start:end, :] = gamma
# Compute an estimate of held-out perplexity
(wordids, wordcts) = parse_doc_list(docset, lda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print "%d: rho_t = %f, held-out perplexity estimate = %f" % (iteration, lda._rhot, numpy.exp(-perwordbound))
# copy to dataframe
for k in range(K):
data["Topic%d" % k] = allgamma[:, k]
def make_topic_columns(lda, data, K, D, batchsize):
questions = QuestionSet(data)
allgamma = numpy.zeros((len(data), K))
for iteration in range(0, len(data) / batchsize):
start = iteration * batchsize
end = start + batchsize
# Download some articles
(docset, articlenames) = questions.get_batch(start, end)
# Give them to online LDA
(gamma, bound) = lda.update_lambda(docset)
allgamma[start:end,:] = gamma
# Compute an estimate of held-out perplexity
(wordids, wordcts) = parse_doc_list(docset, lda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, lda._rhot, numpy.exp(-perwordbound))
# copy to dataframe
for k in range(K):
data['Topic%d'%k] = allgamma[:,k]
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
doc_files = sys.argv[1]
(docset, articlenames) = \
load_documents(doc_files)
D = len(docset)
# of topics
K = int(sys.argv[2])
# Our vocabulary
vocab = file('./dictnostops_test.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
'''kappa set to 0 to eliminate decay'''
olda = onlineldavb.OnlineLDA(vocab, K, D, 1. / K, 1. / K, 1024., 0)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print ' rho_t = %f, held-out perplexity estimate = %f' % \
( olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
print(olda._lambda.shape)
print(gamma.shape)
numpy.savetxt('lambda.dat', olda._lambda)
numpy.savetxt('gamma.dat', gamma)
def main(num_batches, K):
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
Arguments:
- num_batches: the number of batchs to take corpus_size = num_batches * batch_size
- K : the number of topics, determined from stdin
"""
# The number of documents to analyze each iteration
batchsize = 64
# The total number of documents in Wikipedia
D = 3.3e6
# Our vocabulary
vocab = file('./dictnostops.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1. / K, 1. / K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
for iteration in range(0, num_batches):
# Download some articles
(docset, articlenames) = \
wikirandom.get_random_wikipedia_articles(batchsize)
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
numpy.savetxt('lambda-%d.dat' % iteration, olda._lambda)
numpy.savetxt('gamma-%d.dat' % iteration, gamma)
def main():
'''
Read PApers
'''
papers_ = []
with open('papers.csv', 'r') as csvfile:
for line in csv.reader(csvfile, delimiter=',', quotechar='"'):
papers_.append(line)
D = len(papers_)
# The number of topics
K = 10
# Our vocabulary
vocab = open('./dictnostops.txt').readlines()
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1. / K, 1. / K, 1024., 0.7)
docset = [row[3] for row in papers_]
#articlenames = [row[0] for row in papers_]
# Give them to online LDA
(gamma, bound) = olda.update_lambda_docs(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print('%d: rho_t = %f, held-out perplexity estimate = %f' % \
(1, olda._rhot, numpy.exp(-perwordbound)))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
numpy.savetxt('lambda.dat', olda._lambda)
numpy.savetxt('gamma.dat', gamma)
#show topics
printtopics.main(5)
def main():
"""
using online VB for LDA on Archive data.
"""
# The number of documents to analyze each iteration
batchsize = 1000
# The total number of documents in Wikipedia
D = 7000
# The number of topics
K = 10
# How many documents to look at
documentstoanalyze = int(D/batchsize)
if (len(sys.argv) > 1):
K = int(sys.argv[1])
# Our vocabulary
vocab = file(data_dir+'/dictionary_all.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
for iteration in range(0, documentstoanalyze):
docset= get_abstracts(iteration)
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
numpy.savetxt('%darchive-lambda-%d.dat' % (K, iteration), olda._lambda)
numpy.savetxt('%darchive-gamma-%d.dat' % (K, iteration), gamma)
def allocate_topics(lda, data, K, batchsize, D):
n_iterations = len(data) / batchsize
questions = QuestionSet(data)
topics = numpy.zeros((len(data), K))
# derive topics from data in batches
for iteration in range(0, n_iterations):
start = iteration * batchsize
end = start + batchsize
(docset, _) = questions.get_batch(start, end)
(gamma, bound) = lda.update_lambda(docset)
topics[start:end,:] = gamma
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, lda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, lda._rhot, numpy.exp(-perwordbound))
# copy to dataframe
for k in range(K):
data['Topic%d'%k] = topics[:,k]
return topics
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
global D
global doc_list
global last_gamma_file
cut_words()
print D
print len(doc_list)
# The number of documents to analyze each iteration
batchsize = 64
# The total number of documents in Wikipedia
#D = 500
# The number of topics
K = int(sys.argv[1])
# How many documents to look at
if (len(sys.argv) < 3):
documentstoanalyze = int(D/batchsize)
else:
documentstoanalyze = int(sys.argv[1])
# Our vocabulary
vocab = file('./chineseNoStopWords.txt').readlines()
#print vocab
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
print documentstoanalyze
perplexity_set = []
iter_set = []
for iteration in range(0, documentstoanalyze):
# Download some articles
'''
(docset, articlenames) = \
wikirandom.get_random_wikipedia_articles(batchsize)
'''
docset = doc_list[iteration*batchsize:(iteration+1)*batchsize]
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
perplexity_set.append(numpy.exp(-perwordbound))
iter_set.append(iteration)
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 100 == 0 or iteration==documentstoanalyze-1):
numpy.savetxt('./res_'+sys.argv[1]+'/lambda-%d.dat' % iteration, olda._lambda)
numpy.savetxt('./res_'+sys.argv[1]+'/gamma-%d.dat' % iteration, gamma)
last_gamma_file = './res_'+sys.argv[1]+'/lambda-%d.dat'%(documentstoanalyze-1)
save_lambda_path = 'last_lambda_'+sys.argv[1]+'.txt'
flast = open(save_lambda_path,'w')
flast.write(last_gamma_file)
flast.close()
def fit_olda_liveparse(doc_path, vocab_file, outdir, K, batch_size, iterations,\
verbose_topics, anchors, tmv_pickle, lemmatize):
"""
Analyzes a set of documents using online VB for LDA.
"""
# instance to get random documents
docgen = generalrandom.LiveparseDocGen(doc_path)
# The total number of documents in Wikipedia
D = docgen.getDocCount()
# Our vocabulary
vocab = [term.strip() for term in file(vocab_file).readlines()]
W = len(vocab)
# write out general settings to pickle file for use by TMV later
if tmv_pickle:
# save model settings: vocab, K, docgen
f = open(join(outdir, 'settings.pickle'), 'w+')
cPickle.dump((vocab, K, docgen), f)
f.close()
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7, anchors, \
lem = lemmatize)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
iteration = 0
old_perplexity = 1.0 * sys.maxint
delta_perplexity = 1.0 * sys.maxint
delta_perplexities = [old_perplexity] * 10
logfile = open(join(outdir, 'log.out'), 'w+')
while (iterations != 0 and iteration < iterations) or \
sum(delta_perplexities)/10 > 0.001: # 0.1% change in sample perplexity
if iteration > D/batch_size:
print "killing due to iteration count"
break
iter_start = time.time()
# Download some articles
docset = docgen.get_random_articles(batch_size)
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab, \
lemmatize)
# estimate perpexity with the current batch
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
perplexity = numpy.exp(-perwordbound)
delta_perplexity = abs(old_perplexity - perplexity) / perplexity
print '%d: rho_t = %f, held-out perplexity estimate = %f (%.2f%%)' % \
(iteration, olda._rhot, perplexity, delta_perplexity * 100)
logfile.write('%d: rho_t = %f, held-out perplexity estimate = %f (%.2f%%)\n' % (iteration, olda._rhot, perplexity, delta_perplexity * 100))
old_perplexity = perplexity
delta_perplexities.pop(0)
delta_perplexities.append(delta_perplexity)
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
numpy.savetxt(join(outdir, 'lambda-%d.dat' % iteration), \
olda._lambda)
numpy.savetxt(join(outdir, 'gamma-%d.dat' % iteration), gamma)
if verbose_topics:
print_topics(K, 7, vocab, olda._lambda, anchors)
iteration += 1
if tmv_pickle:
f = open(join(outdir,'olda.pickle'), 'w+')
cPickle.dump(olda, f)
f.close()
def main():
# unpack input arguments
# seednum = 1
# documentstoanalyze = 2000
# batchsize = 10
# priv = 1
# epsilon = 1
# comp = 2
# mech = 0
seednum = int(sys.argv[1])
documentstoanalyze = int(sys.argv[2])
batchsize = int(sys.argv[3])
priv = int(sys.argv[4]) # 1 is private version, 0 is nonprivate version
# epsilon = float(sys.argv[5]) # total privacy budget
comp = int(sys.argv[5]) #
mech = int(sys.argv[6]) # 0 for Gaussian, 1 for Laplace
# The number of topics
#K = 100
K = 50 #JF
# load data
# the_filename = Data_PATH+'wiki_docsmallset'
# with open(the_filename, 'rb') as f:
# docset = cPickle.load(f)
#the_filename = Data_PATH+'wiki_docsmallset_D=%s' %(400000)
the_filename = os.path.join(Data_PATH, 'wiki_docsmallset_D=%s' %
(400000)) #JF: Make this work on Windows
if resampleShortDocs:
the_filename = the_filename + '_resample_short_docs'
with open(the_filename, 'rb') as f:
docset = cPickle.load(f)
D = len(docset)
print 'document length: %s' % (D)
nu = batchsize / float(D) # sampling rate
numpy.random.seed(seednum)
print 'seednum %s mini-batchsize %s and number of iter %s' % (
seednum, batchsize, documentstoanalyze)
# Our vocabulary
vocab = file('./dictnostops.txt').readlines()
W = len(vocab)
""" privacy budget calculation """
# (1) to set the same level of burned privacy, we first calculate MA composition
#sigma = 1.00000000000000000000000000000000000001 #a small value to minimize the noise
#sigma = 1.1 #an intermediate value
sigma = 1.24 #an intermediate value
#sigma = 1.5 #an intermediate value
#sigma = 2 #a larger value, expected to substantially reduce privacy and performance.
total_del = 1e-4
J = documentstoanalyze
total_eps_MA = cal_pri.moments_accountant(sigma, total_del, nu, J)
print 'total privacy loss is %f' % (total_eps_MA)
#(2) strong composition
del_iter = 1e-6
res = minimize_scalar(cal_pri.strong_composition,
bounds=(0, 50),
args=(total_eps_MA, total_del, J, nu, del_iter),
method='bounded')
eps_iter = res.x
gamma_noise = 0 # we don't use this at all.
if comp == 0: #MA
c2 = 2 * np.log(1.25 / del_iter)
eps_iter = np.sqrt(c2) / sigma
budget = [eps_iter, del_iter]
elif comp == 1: #strong composition
budget = [eps_iter, del_iter]
else:
print "we don't support this composition"
if priv:
print 'private version'
olda = onlineldavb.OnlineLDA(vocab, K, D, 1. / K, 1. / K, 1024., 0.7, priv,
budget, gamma_noise, mech)
perplexity = numpy.zeros(documentstoanalyze)
# for iteration in range(0, maxIter):
for iteration in range(0, documentstoanalyze):
# subset of data
rand_perm_nums = numpy.random.permutation(len(docset))
idx_minibatch = rand_perm_nums[0:batchsize]
docsubset = list(docset[i] for i in idx_minibatch)
# Give them to online LDA
(gamma, bound) = olda.update_lambda_docs(docsubset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docsubset, olda._vocab)
perwordbound = bound * len(docsubset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
perplexity[iteration] = numpy.exp(-perwordbound)
# save perplexity
if priv:
# if gamma_noise:
# method = 'private_epsilon_%s_cdp_%s_gamma_noise_%s' % (epsilon, cdp, gamma_noise)
# else:
# method = 'private_epsilon_%s_cdp_%s' %(epsilon, cdp)
# method = 'static_private_seed=%s_J=%s_S=%s_priv=%s_epsilon=%s_compo=%s_D=%s' %(sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4], sys.argv[5], sys.argv[6], D)
#method = Results_PATH+'static_private_seed=%s_J=%s_S=%s_priv=%s_epsilon=%s_compo=%s_Lap=%s_D=%s' %(sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4], total_eps_MA, sys.argv[5], sys.argv[6], D)
method = os.path.join(
Results_PATH,
'static_private_seed=%s_J=%s_S=%s_priv=%s_epsilon=%s_compo=%s_Lap=%s_D=%s'
% (sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4],
total_eps_MA, sys.argv[5], sys.argv[6], D))
else:
#method = Results_PATH+'static_nonprivate_seed=%s_J=%s_S=%s_priv=%s_D=%s' %(sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4], D)
method = os.path.join(
Results_PATH, 'static_nonprivate_seed=%s_J=%s_S=%s_priv=%s_D=%s' %
(sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4], D))
if resampleShortDocs:
method = method + '_resample_short_docs'
numpy.save(method + '.npy', perplexity)
# method = 'private_epsilon_1'
# filename = method+'_D=_%s_S=_%s' %(D, batchsize)
# numpy.save(filename+'.npy', test_log_likelihood)
# save lambda and gamma
numpy.savetxt(method + '_lambda.dat', olda._lambda)
numpy.savetxt(method + '_gamma.dat', gamma)
def main():
# unpack input arguments
# seednum = 1
# documentstoanalyze = 2000
# batchsize = 1000
# priv = 0
# epsilon = 1
# comp = 2
seednum = int(sys.argv[1])
documentstoanalyze = int(sys.argv[2])
batchsize = int(sys.argv[3])
priv = int(sys.argv[4]) # 1 is private version, 0 is nonprivate version
epsilon = float(sys.argv[5]) # total privacy budget
comp = int(sys.argv[6]) # 0 conventional, 1 advanced, 2 CDP
# The number of topics
K = 100
# D = 1000000
D = 5000000
nu = batchsize / float(D) # sampling rate
numpy.random.seed(seednum)
print('seednum %s mini-batchsize %s and number of iter %s' %
(seednum, batchsize, documentstoanalyze))
# Our vocabulary
vocab = file('./dictnostops.txt').readlines()
W = len(vocab)
gamma_noise = 0 # will use Laplace noise all the time
if comp == 2:
# budget = numpy.sqrt(epsilon/float(documentstoanalyze))
# budget = numpy.sqrt(epsilon*D/float(2*batchsize))
budget = numpy.sqrt(2 * epsilon) / float(
2 * nu * numpy.sqrt(documentstoanalyze))
elif comp == 1:
delta = 0.000001
budget = epsilon / float(
4 * nu * numpy.sqrt(2 * documentstoanalyze * numpy.log(1 / delta)))
else:
# budget = epsilon/float(documentstoanalyze)
budget = epsilon / float(2 * documentstoanalyze * nu)
if priv:
print('private version')
olda = onlineldavb.OnlineLDA(vocab, K, D, 1. / K, 1. / K, 1024., 0.7, priv,
budget, gamma_noise)
# the_filename = Data_PATH+'wiki_data'
# with open(the_filename, 'rb') as f:
# docset = cPickle.load(f)
# load all the documents
# docset = []
# for whichdoc in range(1, 21):
# the_filename = Data_PATH+'wikidata_seednum=_%s' %(whichdoc)
# with open(the_filename, 'rb') as f:
# docset1 = cPickle.load(f)
# docset = docset + docset1
# print "docset %s is loaded" %(whichdoc)
#
# print "docset all loaded"
perplexity = numpy.zeros(documentstoanalyze)
# D_test = 10000
# for iteration in range(0, maxIter):
for iteration in range(0, documentstoanalyze):
# subset of data
# rand_perm_nums = numpy.random.permutation(len(docset))
# idx_minibatch = rand_perm_nums[0:batchsize]
# docsubset = list(docset[i] for i in idx_minibatch)
# Download some articles
(docset, articlenames) = \
wikirandom.get_random_wikipedia_articles(batchsize)
# Give them to online LDA
(gamma, bound) = olda.update_lambda_docs(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print('%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound)))
# # Give them to online LDA
# (gamma, bound) = olda.update_lambda_docs(docsubset)
# # Compute an estimate of held-out perplexity
# (wordids, wordcts) = onlineldavb.parse_doc_list(docsubset, olda._vocab)
# perwordbound = bound * len(docsubset) / (D * sum(map(sum, wordcts)))
# print '%d: rho_t = %f, training perplexity estimate = %f' % \
# (iteration, olda._rhot, numpy.exp(-perwordbound))
# compute test perplexity
# idx_test = rand_perm_nums[batchsize+1:batchsize+1+D_test]
# doctest = list(docset[i] for i in idx_test)
#
# (gamma_test, ss) = olda.do_e_step_docs(doctest)
# # Estimate held-out likelihood for current values of lambda.
# bound_test = olda.approx_bound_docs(doctest, gamma_test)
# (wordids, wordcts_test) = onlineldavb.parse_doc_list(doctest, olda._vocab)
#
# # perwordbound_test = bound_test*D_test / float(D*sum(map(sum, wordcts_test)))
# perword_test_log_likelihood = bound_test / float(sum(map(sum, wordcts_test)))
# print '%d: rho_t = %f, test perplexity estimate = %f' % \
# (iteration, olda._rhot, perword_test_log_likelihood)
perplexity[iteration] = numpy.exp(-perwordbound)
# save perplexity
if priv:
# if gamma_noise:
# method = 'private_epsilon_%s_cdp_%s_gamma_noise_%s' % (epsilon, cdp, gamma_noise)
# else:
# method = 'private_epsilon_%s_cdp_%s' %(epsilon, cdp)
method = 'private_seed=%s_J=%s_S=%s_priv=%s_epsilon=%s_compo=%s' % (
sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4], sys.argv[5],
sys.argv[6])
else:
method = 'Nonprivate_seed=%s_J=%s_S=%s_priv=%s_epsilon=%s_compo=%s' % (
sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4], sys.argv[5],
sys.argv[6])
numpy.save(method + '.npy', perplexity)
# method = 'private_epsilon_1'
# filename = method+'_D=_%s_S=_%s' %(D, batchsize)
# numpy.save(filename+'.npy', test_log_likelihood)
# save lambda and gamma
numpy.savetxt(method + '_lambda.dat', olda._lambda)
numpy.savetxt(method + '_gamma.dat', gamma)
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
# The number of documents to analyze each iteration
batch_size = 4
# Total number of documents in the population. For a fixed corpus,
# this is the size of the corpus. In the truly online setting
number_of_documents = 71
# The number of topics
number_of_topics = 1
# establish mysql database connection
database = MysqlMessager(database="keyword_app")
sql = "select Abstract from PreprocessedAbstracts;"
database.excute_sql(sql)
row_iteration = database.fetch()
abstracts = [row[0] for row in row_iteration]
# How many documents to look at
if len(sys.argv) < 2:
documents_to_analyze = int(number_of_documents / batch_size)
else:
documents_to_analyze = int(sys.argv[1])
# Our vocabulary
all_keywords_file_path = "../../keywords/abstract_109.txt"
with read_pickle_file(all_keywords_file_path) as content:
vocab = list(content)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, number_of_topics, number_of_documents,
1. / number_of_topics, 1. / number_of_topics,
1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
for iteration in range(0, documents_to_analyze):
# set dataset as list that stores all abstracts
doc_set = abstracts
# Give them to online LDA
(gamma, bound) = olda.update_lambda(doc_set)
# Compute an estimate of held-out perplexity
(word_ids,
word_count_times) = onlineldavb.parse_doc_list(doc_set, olda.vocab)
per_word_bound = bound * len(doc_set) / (
number_of_documents * sum(map(sum, word_count_times)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda.rhot, numpy.exp(-per_word_bound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if iteration % 10 == 0:
numpy.savetxt('lambda-%d.dat' % iteration, olda._lambda)
numpy.savetxt('gamma-%d.dat' % iteration, gamma)
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
wn.ensure_loaded()
wiki_pool = wiki_local.WikiPool()
# The number of documents to analyze each iteration
batchsize = 1
# The total number of documents in Wikipedia
D = 3.3e6
# The number of topics
K = 30
# How many documents to look at
if (len(sys.argv) < 2):
documentstoanalyze = int(D / batchsize)
else:
documentstoanalyze = int(sys.argv[1]) + 1
# Our vocabulary
#vocab = file('./dictnostops.txt').readlines()
#vocab = file('./wordnet_nouns.txt').readlines()
#vocab = file('./synset_dict.txt').readlines()
#vocab = file('./wn_ambig_no_stop.txt').readlines()
vocab = file('./mixed_wn_dict.txt').readlines()
#vocab = []
#for word in words.words():
# word = str(word).lower()
# word = re.sub(r'[^a-z]', '', word)
# if word != '':
# vocab.append(word)
##we get repeats because of upper -> lowercase?
#vocab = set(vocab)
#vocab = list(vocab)
W = len(vocab)
print W
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1. / K, 1. / K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
for iteration in range(0, documentstoanalyze):
# Download some articles
(docset, articlenames) = \
wiki_pool.get_random_wikipedia_articles(batchsize)
# Give them to online LDA
(gamma, bound) = olda.update_lambda_docs(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 50 == 0):
numpy.savetxt(
'data_ground_truth_disambig/lambda-%d.dat' % iteration,
olda._lambda)
numpy.savetxt(
'data_ground_truth_disambig/gamma-%d.dat' % iteration, gamma)
numpy.savetxt('data_ground_truth_disambig/lambda-%d.dat' % iteration,
olda._lambda)
numpy.savetxt('data_ground_truth_disambig/gamma-%d.dat' % iteration, gamma)
print "finished iterations"
wiki_pool.end()
def main():
articles = list()
artnames = list()
for line in file('./jacm/withIDAbstracts.txt').readlines():
combo=line.split('\t')
artnames.append(combo[0])
articles.append(combo[1])
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
# The number of documents to analyze each iteration
batchsize = 1
# The total number of documents in Wikipedia
D = len(artnames)
# The number of topics
K = 54
# How many documents to look at
documentstoanalyze = len(artnames)
# Our vocabulary
vocab = file('./dictnostops.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
for iteration in range(0, D):
# Download some articles
docset=list()
docset.append(articles[iteration])
articlenames=list()
articlenames.append(artnames[iteration])
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
print bound
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
numpy.savetxt('./simpleLDA/gamma-%d.dat' % iteration, gamma)
if (iteration % 50 == 0 or iteration==616):
numpy.savetxt('./simpleLDA/lambda-%d.dat' % iteration, olda._lambda)
def main(argv):
doc_list = []
argList = handleArgs(argv)
#list the docs in pickledDocs folder
p = "../data/pickledDocs/"
l = listdir(p)
fileList = [p + f for f in l]
#for each pickled doclist, append all docs to master doclist
for fi in fileList:
with open(fi, 'rb') as d:
docs = cPickle.load(d)
for k, x in docs.iteritems():
doc_list.append(x)
print len(doc_list)
#D is total number of docs to show to the model, K is number of topics
goal_its = 80 #number of iterations to run LDA
corp_size = len(doc_list) #number of documents in the corpus
D = corp_size * goal_its #number of documents expected to see
K = 10 #default topic value, if none given in parameters
saveModel = False #whether to save LDA model itself
desc = "" #for performing non-standard runs
version = "" #for having multiple models with same parameters
hyper_param = "" #for testing hyperparameters
#define the vocabulary file we will be using
vocab = helper_funcs.read_dict("../data/dictionary.txt") #default dict
#initialize an instance of the OnlineLDA algorithm
#parameters - dictionary, num topics, learning rate, beta, tau, kappa
#if the path to an OnlineLDA pickle is passed, it re-opens that pickle
K = int(argList[0])
vocab = vocab = str.split(file(argList[1]).read())
if not (argList[2] is None):
alpha = argList[2]
else:
alpha = 0.1
if not (argList[3] is None):
beta = argList[3]
else:
beta = 1.
saveModel = False
lda = onlineldavb.OnlineLDA(vocab, K, D, alpha, beta, 1024, 0.)
print "created LDA with parameters:\nnumwords: " + str(
len(vocab)) + "\n#topics: " + str(K) + "\nalpha: " + str(
alpha) + "\nbeta: " + str(beta)
paramTitle = hyper_param + str(
len(vocab) / 1000) + "kwords_" + str(K) + "topics"
folder = "../data/out/models/" + paramTitle
if not isdir(folder):
mkdir(folder)
W = len(vocab)
print "dictionary size: " + str(W)
print paramTitle
print folder
#if desc.find("label") > -1:
# with open("../data/out/past_models/"+paramTitle+"/dictionary.txt",'wb') as f:
# voc = sorted(vocab.items(),key=operator.itemgetter(1))
# for x in voc:
# f.write(x[0]+"\n")
#perform LDA on the document list for goal_its iterations, updating lambda
for i in range(lda._updatect, goal_its):
print doc_list
print i
(gamma, bound) = lda.update_lambda(doc_list)
(wordids, wordcts) = onlineldavb.parse_doc_list(doc_list, lda._vocab)
perwordbound = bound * len(doc_list) / (D * sum(map(sum, wordcts)))
print np.exp(-perwordbound)
#pickle the model and its output occasionally
if (i + 1) == goal_its:
if not isdir(folder):
mkdir(folder)
with open(folder + "/gamma.pickle", 'wb') as f:
cp2 = cPickle.Pickler(f)
cp2.dump(gamma)
with open(folder + "/lambda.pickle", 'wb') as f:
cp = cPickle.Pickler(f)
cp.dump(lda._lambda)
np.savetxt(folder + '/lambda.dat', lda._lambda)
if saveModel:
with open(folder + "/LDA.pickle", 'wb') as f:
cp3 = cPickle.Pickler(f)
cp3.dump(lda)
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
comm = MPI.COMM_WORLD
size = comm.Get_size()
rank = comm.Get_rank()
# The number of documents to analyze each iteration
batchsize = 100
# The total number of documents in Wikipedia
D = 1000 #D = 2129792 for the whole set
# The number of topics
K = 30
# Our vocabulary
vocab = file('./com_all_words.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1. / K, 1. / K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
iteration = 0
while iteration * batchsize * size <= D:
# Download some articles
docset = []
counts = []
linecache.clearcache()
startpoint = iteration * batchsize * size + batchsize * rank + 1
if startpoint > D: # search to the end
break # stop
# get the paper keywords in batches
for i in range(batchsize):
f1 = open('com_all_key.txt', 'r')
f2 = open('com_all.txt', 'r')
docset.append(
linecache.getline('com_all_key.txt', min(D, startpoint))[:-1])
counts.append(
linecache.getline('com_all.txt', min(D, startpoint))[:-1])
startpoint = startpoint + 1
# print type(docset), type(docset[0]), docset[0]
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset, counts)
# Compute an estimate of held-out perplexity
(wordids,
wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab, counts)
# print wordcts[0:5]
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
iteration = iteration + 1
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
# print olda._lambda[0]
gammas = comm.gather(gamma, root=0)
lambdas = comm.gather(olda._lambda, root=0)
if rank == 0:
gamma_result = numpy.vstack((x for x in gammas))
lambda_result = numpy.vstack((x for x in lambdas))
numpy.savetxt('lambda_parallel.dat', olda._lambda)
numpy.savetxt('gamma_parallel.dat', gamma)
def main(argv):
doc_list = []
K, folder, alpha, beta, saveModel = handleArgs(argv)
#list the docs in pickledDocs folder
p = "../data/pickledDocs/"
l = listdir(p)
fileList = [p+f for f in l]
#for each pickled doclist, append all docs to master doclist
with open(folder.replace("dictionary","filelist"),'wb') as f:
for fi in fileList:
with open(fi,'rb') as d:
docs = cPickle.load(d)
for k,x in docs.iteritems():
doc_list.append(x)
f.write(k+"\n")
print len(doc_list)
#D is total number of docs to show to the model, K is number of topics
goal_its = 40 #number of iterations to run LDA
corp_size = len(doc_list) #number of documents in the corpus
D = corp_size*goal_its #number of documents expected to see
#K = 10 #default topic value, if none given in parameters
#saveModel = False #whether to save LDA model itself
desc = "" #for performing non-standard runs
version = "" #for having multiple models with same parameters
hyper_param = "" #for testing hyperparameters
#initialize an instance of the OnlineLDA algorithm
#parameters - dictionary, num topics, learning rate, beta, tau, kappa
#if the path to an OnlineLDA pickle is passed, it re-opens that pickle
#K = int(argList[0])
vocab = vocab = str.split(file(folder).read())
# if not (argList[2] is None):
# alpha = argList[2]
# else:
# alpha = 0.1
# if not (argList[3] is None):
# beta = argList[3]
# else:
# beta = 1.
#
# saveModel = argList[4]
lda = onlineldavb.OnlineLDA(vocab,K,D,alpha,beta,1024,0.)
print "created LDA with parameters:\nnumwords: "+str(len(vocab))+"\n#topics: "+str(K)+"\nalpha: "+str(alpha)+"\nbeta: "+str(beta)
paramTitle = hyper_param+str(len(vocab)/1000)+"kwords_"+str(K)+"topics"
folder = "../data/out/models/"+paramTitle
if not isdir(folder):
mkdir(folder)
W = len(vocab)
print "dictionary size: " + str(W)
print paramTitle
print folder
#if desc.find("label") > -1:
# with open("../data/out/past_models/"+paramTitle+"/dictionary.txt",'wb') as f:
# voc = sorted(vocab.items(),key=operator.itemgetter(1))
# for x in voc:
# f.write(x[0]+"\n")
#perform LDA on the document list for goal_its iterations, updating lambda
for i in range(lda._updatect,goal_its):
print i
(gamma, bound) = lda.update_lambda(doc_list)
(wordids, wordcts) = onlineldavb.parse_doc_list(doc_list,lda._vocab)
perwordbound = bound * len(doc_list) / (D*sum(map(sum,wordcts)))
print np.exp(-perwordbound)
#pickle the model and its output occasionally
if (i+1) == goal_its:
if not isdir(folder):
mkdir(folder)
with open(folder+"/gamma.pickle",'wb') as f:
cp2 = cPickle.Pickler(f)
cp2.dump(gamma)
with open(folder+"/lambda.pickle",'wb') as f:
cp = cPickle.Pickler(f)
cp.dump(lda._lambda)
np.savetxt(folder+'/lambda.dat', lda._lambda)
if not (saveModel is None):
with open(folder+"/LDA.pickle",'wb') as f:
cp3 = cPickle.Pickler(f)
cp3.dump(lda)
if not len(sys.argv) == 4:
folder = "../data/out/"+paramTitle
print folder
#if desc.find("label") > -1:
# with open("../data/out/past_models/"+paramTitle+"/dictionary.txt",'wb') as f:
# voc = sorted(vocab.items(),key=operator.itemgetter(1))
# for x in voc:
# f.write(x[0]+"\n")
#perform LDA on the document list for goal_its iterations, updating lambda
for i in range(lda._updatect,goal_its):
print i
(gamma, bound) = lda.update_lambda(doc_list)
(wordids, wordcts) = onlineldavb.parse_doc_list(doc_list,lda._vocab)
perwordbound = bound * len(doc_list) / (D*sum(map(sum,wordcts)))
print np.exp(-perwordbound)
#pickle the model and its output occasionally
if (i+1) == goal_its:
print doc_list[0]
print gamma[0]
if not isdir(folder):
mkdir(folder)
with open(folder+"/gamma.pickle",'wb') as f:
cp2 = cPickle.Pickler(f)
cp2.dump(gamma)
with open(folder+"/lambda.pickle",'wb') as f:
cp = cPickle.Pickler(f)
cp.dump(lda._lambda)
def main():
# LDA: a documents contains all the keywords of some journal/conference
# equivalent to cluster keywords over journals/conferences
journal_or_conference = sys.argv[1]
num = int(sys.argv[2])
conn = jcke.get_db_conn()
# default (num <=0 or > max number): figure out all the journals/conferences keywords
if num <= 0 or (num >= 15151 and journal_or_conference == "journal") or (
num >= 4545 and journal_or_conference == "conference"):
query = """
SELECT COUNT(*) FROM ##journal_or_conference##
"""
query = query.replace("##journal_or_conference##",
journal_or_conference)
conn.cursor.execute(query)
num = conn.cursor.fetchall(
) # number of journals/conferences to process
# document parsing
journal_conf_list = os.listdir("journal_conf_keyword")
# check if txt files exist, then generate those docs
if not num == len(journal_conf_list):
jcke.journal_conf_keyword_generation(conn, num, journal_or_conference)
journal_conf_list = os.listdir("journal_conf_keyword")
# The number of journal/conference keyword sets in each batch
batchsize = lambda num: num if num <= 100 else 100
batch = batchsize(num)
iteration_times = int(num / batch)
# The total number of journals/conferences
DocNum = lambda journal_or_conference: 15151 if journal_or_conference == "journal" else 4545
D = DocNum(journal_or_conference)
# The number of topics
K = 100 # maybe some other numbers
# Our vocabulary : we need some vocabulary set!
vocab = dict()
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
online_LDA = lda.OnlineLDA(vocab, K, D, 1. / K, 1. / K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much* sooner than this.)
for iteration in range(0, iteration_times):
# getting documents (keyword sets)
if iteration != iteration_times - 1:
journal_conf_keyword_list = jcke.input_journal_conf_keywords(
journal_conf_list[iteration * batch:(iteration + 1) * batch])
else:
journal_conf_keyword_list = jcke.input_journal_conf_keywords(
journal_conf_list[iteration * batch:])
# online LDA for keyword sets
# here we update the relative function in the package (dangerous!)
online_LDA._vocab = jcke.vocabulary_generation(
journal_conf_keyword_list, online_LDA._vocab)
(gamma, bound) = online_LDA.update_lambda(journal_conf_keyword_list)
# Compute an estimate of held-out perplexity
(keywordids,
keywordcts) = lda.parse_doc_list(journal_conf_keyword_list,
online_LDA._vocab)
perkeywordbound = bound * len(journal_conf_keyword_list) / (
D * sum(map(sum, keywordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, online_LDA._rhot, numpy.exp(-perkeywordbound))
# Save lambda, the parameters to the variational distributions over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in the last iteration.
numpy.savetxt('lambda-%s.dat' % journal_or_conference, online_LDA._lambda)
numpy.savetxt('gamma-%s.dat' % journal_or_conference, gamma)
def fit_olda(parse, doc_path, doc_file, vocab_file, outdir, K, batch_size, \
iterations, verbose_topics, anchors, tmv_pickle, lemmatize, final_pass, \
full_doc_topics):
"""
Analyzes a set of documents using online VB for LDA.
"""
# instance to generate radom documents
if parse == "live": # read and parse docs on the fly using vocab
docgen = generalrandom.LiveparseDocGen(doc_path)
else: # alternative: preparsed
docgen = generalrandom.PreparseDocGen(doc_file)
# The total number of documents in Wikipedia
D = docgen.getDocCount()
if iterations == 0:
iterations = max(D / batch_size, 10)
# Our vocabulary
if parse == "live" or verbose_topics:
vocab = [term.strip() for term in file(vocab_file).readlines()]
W = len(vocab)
else:
W = docgen.getTermCount()
vocab = ["term " + str(w) for w in range(W)]
# write out general settings to pickle file for use by TMV later
if tmv_pickle:
# save model settings: vocab, K, docgen
f = open(join(outdir, 'settings.pickle'), 'w+')
cPickle.dump((vocab, K, docgen, lemmatize), f)
f.close()
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7, anchors, \
lem = lemmatize, preparsed = (parse == "preparsed"))
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
iteration = 0
old_perplexity = 1.0 * sys.maxint
delta_perplexity = 1.0 * sys.maxint
delta_perplexities = [old_perplexity] * 10
logfile = open(join(outdir, 'log.out'), 'w+')
while iteration < iterations and sum(
delta_perplexities
) / 10 > 0.001: # 0.1% change in sample perplexity
iter_start = time.time()
# Download some articles
docset = docgen.get_random_articles(batch_size)
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
if parse == "live":
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, \
olda._vocab, lemmatize)
else:
(wordids, wordcts) = docset
# estimate perpexity with the current batch
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
perplexity = numpy.exp(-perwordbound)
delta_perplexity = abs(old_perplexity - perplexity) / perplexity
print '%d: rho_t = %f, held-out perplexity estimate = %f (%.2f%%)' % \
(iteration, olda._rhot, perplexity, delta_perplexity * 100)
logfile.write(
'%d: rho_t = %f, held-out perplexity estimate = %f (%.2f%%)\n' %
(iteration, olda._rhot, perplexity, delta_perplexity * 100))
old_perplexity = perplexity
delta_perplexities.pop(0)
delta_perplexities.append(delta_perplexity)
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
numpy.savetxt(join(outdir, 'lambda-%d.dat' % iteration), \
olda._lambda)
numpy.savetxt(join(outdir, 'gamma-%d.dat' % iteration), gamma)
if verbose_topics:
print_topics(K, 7, vocab, olda._lambda, anchors)
iteration += 1
logfile.close()
if tmv_pickle:
f = open(join(outdir, 'olda.pickle'), 'w+')
cPickle.dump(olda, f)
f.close()
# save final iters
numpy.savetxt(join(outdir, 'lambda-final.dat'), olda._lambda)
numpy.savetxt(join(outdir, 'gamma-%d.dat' % iteration), gamma)
# do a final pass on all documents
if (final_pass):
fout = open(join(outdir, "gamma-final.dat"), 'w+')
if not full_doc_topics:
fout.write("doc.lda.id\ttopic.id\tscore\n")
i = 0
for doc in docgen:
if parse == 'live': #TODO: the parsers should return same order...
doc = doc[1]
(gamma, ss) = olda.do_e_step(doc)
j = 0
if not full_doc_topics:
for g in gamma.tolist()[0]:
if g > 0.051:
fout.write("%d\t%d\t%f\n" % (i, j, g))
j += 1
i += 1
else:
gf = gamma.tolist()[0]
fout.write(('\t'.join(["%f"] * len(gf)) + '\n') % tuple(gf))
fout.close()
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
# The number of documents to analyze each iteration
batchsize = 5
# The total number of documents in Wikipedia
#D = 10
# The number of topics
K = 20
#load my own dataset
f = open('../annotated/odata.dat', 'rb')
data = cPickle.load(f)
f.close()
if '-S' in sys.argv:
catog = 'pos'
else:
catog = 'neg'
docset = []
for each in data:
if each[1] == catog:
docset.append(each[0][0][0])
D = len(docset) #number of docset
print D
# How many documents to look at
if (len(sys.argv) < 2):
documentstoanalyze = int(D/batchsize)
else:
documentstoanalyze = int(sys.argv[1])
# Our vocabulary
vocab = open('./dictnostops.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
for iteration in range(0, documentstoanalyze):
# Download some articles
#(docset, articlenames) = \
# wikirandom.get_random_wikipedia_articles(batchsize)
#print type(docset[1]), type(docset[0])
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
numpy.savetxt('lambda-%d.dat' % iteration, olda._lambda)
numpy.savetxt('gamma-%d.dat' % iteration, gamma)
def main():
"""
Retrieves the content of a set of text files whose content is obtained
from SOAP API descriptors.
"""
path = sys.argv[1]
docs = os.listdir(path)
# The number of documents to analyze each iteration
rest = 1
#batchsize = int(math.ceil(len(docs)/100))
batchsize = 15
#print len(docs)
#while rest != 0:
# rest = len(docs) % batchsize
# if (rest != 0):
# batchsize = batchsize + 1
# The total number of documents (is supposed to be a huge/infinite number in an online setting)
D = 3.3e6
#D = len(docs)
# The number of topics
K = 40
#K = 50
# How many documents to look at
#print batchsize
#print sys.argv[0]
if (len(sys.argv) == 2):
#print 'Got into IF...'
documentstoanalyze = int(math.ceil(len(docs)/float(batchsize)))
elif (len(sys.argv) == 3):
documentstoanalyze = int(sys.argv[2])
elif (len(sys.argv) == 4):
documentstoanalyze = int(sys.argv[2])
K = int(sys.argv[3])
#print documentstoanalyze
# Our vocabulary
#vocab = file('./dictnostops.txt').readlines()
vocab = file('./wlist_match10.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 0.5, 0.5, 1024., 0.7)
#olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7)
# Dictionary for storing gamma values of the processed text files
gamma_all = dict()
#olda = onlineldavb.OnlineLDA(vocab, K, D, 0.01, 0.01, 1024., 0.7)
for iteration in range(1, documentstoanalyze+1):
# Download some articles
(docset, operation_id) = \
get_file_content(iteration, batchsize, path)
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
#print ('iteration %d: rho_t = %f, held-out perplexity estimate = %f ' % \
# (iteration, olda._rhot, numpy.exp(-perwordbound)))
sys.stdout.write('\rBatchs of document analyzed: %d/%d' % (iteration, documentstoanalyze))
sys.stdout.flush()
# Store the gamma values into the gamma_all for each one of the text files
# in the current iteration
for i in range(len(operation_id)):
gamma_all[operation_id[i]] = list(gamma[i])
print(iteration, resource.getrusage(resource.RUSAGE_SELF).ru_maxrss)
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the text files analyzed in
# the last iteration.
#if (iteration % 10 == 0):
# numpy.savetxt('parameters/lambda-%d.dat' % iteration, olda._lambda)
# numpy.savetxt('parameters/gamma-%d.dat' % iteration, gamma)
if (iteration == documentstoanalyze):
numpy.savetxt('parameters/lambda-all.dat', olda._lambda)
# Save gamma_all for all the processed text files
print '\n'
temp = gamma_all.items()
temp = sorted(temp, key = lambda x: x[0])
numpy.savetxt('parameters/gamma-all.dat' , [item[1] for item in temp])
def fit_olda(parse, doc_path, doc_file, vocab_file, outdir, K, batch_size, \
iterations, verbose_topics, anchors, tmv_pickle, lemmatize, final_pass, \
full_doc_topics):
"""
Analyzes a set of documents using online VB for LDA.
"""
# instance to generate radom documents
if parse == "live": # read and parse docs on the fly using vocab
docgen = generalrandom.LiveparseDocGen(doc_path)
else: # alternative: preparsed
docgen = generalrandom.PreparseDocGen(doc_file)
# The total number of documents in Wikipedia
D = docgen.getDocCount()
if iterations == 0:
iterations = max(D / batch_size, 10)
# Our vocabulary
if parse == "live" or verbose_topics:
vocab = [term.strip() for term in file(vocab_file).readlines()]
W = len(vocab)
else:
W = docgen.getTermCount()
vocab = ["term " + str(w) for w in range(W)]
# write out general settings to pickle file for use by TMV later
if tmv_pickle:
# save model settings: vocab, K, docgen
f = open(join(outdir, 'settings.pickle'), 'w+')
cPickle.dump((vocab, K, docgen, lemmatize), f)
f.close()
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7, anchors, \
lem = lemmatize, preparsed = (parse == "preparsed"))
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
iteration = 0
old_perplexity = 1.0 * sys.maxint
delta_perplexity = 1.0 * sys.maxint
delta_perplexities = [old_perplexity] * 10
logfile = open(join(outdir, 'log.out'), 'w+')
while iteration < iterations and sum(delta_perplexities)/10 > 0.001: # 0.1% change in sample perplexity
iter_start = time.time()
# Download some articles
docset = docgen.get_random_articles(batch_size)
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
if parse == "live":
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, \
olda._vocab, lemmatize)
else:
(wordids, wordcts) = docset
# estimate perpexity with the current batch
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
perplexity = numpy.exp(-perwordbound)
delta_perplexity = abs(old_perplexity - perplexity) / perplexity
print '%d: rho_t = %f, held-out perplexity estimate = %f (%.2f%%)' % \
(iteration, olda._rhot, perplexity, delta_perplexity * 100)
logfile.write('%d: rho_t = %f, held-out perplexity estimate = %f (%.2f%%)\n' % (iteration, olda._rhot, perplexity, delta_perplexity * 100))
old_perplexity = perplexity
delta_perplexities.pop(0)
delta_perplexities.append(delta_perplexity)
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
numpy.savetxt(join(outdir, 'lambda-%d.dat' % iteration), \
olda._lambda)
numpy.savetxt(join(outdir, 'gamma-%d.dat' % iteration), gamma)
if verbose_topics:
print_topics(K, 7, vocab, olda._lambda, anchors)
iteration += 1
logfile.close()
if tmv_pickle:
f = open(join(outdir,'olda.pickle'), 'w+')
cPickle.dump(olda, f)
f.close()
# save final iters
numpy.savetxt(join(outdir, 'lambda-final.dat'), olda._lambda)
numpy.savetxt(join(outdir, 'gamma-%d.dat' % iteration), gamma)
# do a final pass on all documents
if (final_pass):
fout = open(join(outdir, "gamma-final.dat"), 'w+')
if not full_doc_topics:
fout.write("doc.lda.id\ttopic.id\tscore\n")
i = 0
for doc in docgen:
if parse == 'live': #TODO: the parsers should return same order...
doc = doc[1]
(gamma, ss) = olda.do_e_step(doc)
j = 0
if not full_doc_topics:
for g in gamma.tolist()[0]:
if g > 0.051:
fout.write("%d\t%d\t%f\n" % (i,j,g))
j += 1
i += 1
else:
gf = gamma.tolist()[0]
fout.write(('\t'.join(["%f"]*len(gf))+'\n') % tuple(gf))
fout.close()
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
# The number of documents to analyze each iteration
batchsize = 100
# The total number of documents in Wikipedia
D = 3.3e6
# The number of topics
K = 100
rho_t_vector = []
perplexity_vector = []
time_vector = []
time1_vector = []
# How many documents to look at
if (len(sys.argv) < 2):
documentstoanalyze = int(D / batchsize)
else:
documentstoanalyze = int(sys.argv[1])
# Our vocabulary
vocab = file('./dictnostops.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
kappa = 0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1. / K, 1. / K, 1024., kappa)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
t1 = time.time()
for iteration in tqdm(range(0, documentstoanalyze)):
# Download some articles
(docset, articlenames) = \
wikirandom.get_random_wikipedia_articles(batchsize)
# Give them to online LDA
(gamma, bound) = olda.update_lambda_docs(docset)
# Compute an estimate of held-out perplexity
t = time.time()
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
t2 = time.time()
time_vector.append(t2 - t1)
if len(time1_vector) == 0:
time1_vector.append(t2 - t)
else:
time1_vector.append(time1_vector[-1] + t2 - t)
rho_t_vector.append(olda._rhot)
perplexity_vector.append(perwordbound)
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
numpy.savetxt('lambda-%d.dat' % iteration, olda._lambda)
numpy.savetxt('gamma-%d.dat' % iteration, gamma)
numpy.savetxt('time_%.1f_%d' % (kappa, batchsize),
numpy.array(time_vector))
numpy.savetxt('rho_%.1f_%d' % (kappa, batchsize),
numpy.array(rho_t_vector))
numpy.savetxt('perplexity_%.1f_%d' % (kappa, batchsize),
numpy.array(perplexity_vector))
numpy.savetxt('time1_%.1f_%d' % (kappa, batchsize),
numpy.array(time1_vector))
def main():
"""
Analyzes scraped pages using scikit-learn.LDA
"""
# The number of topics
K = 10
# no of documents
D = 300
n_features = 1000
# Our vocabulary
vocab = list(set(file('./vocab').readlines()))
W = len(vocab)
# Add terms and topics to the DB
db.init()
db.add_terms(vocab)
db.add_topics(K)
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7)
# grab documents
### Load your scraped pages, re-tokenize, and vectorize result.
docset, docnames = [], []
for filename in os.listdir(os.getcwd()):
if filename.endswith('.html'):
tree = html.parse(filename)
try: encoding = tree.xpath('//meta/@charset')[0]
except IndexError: encoding = 'utf-8'
with open(filename) as page:
rawtext = page.read()
try: rawtext = rawtext.decode(encoding, errors='backslashreplace')
except TypeError: continue
# encoding issues, see http://stackoverflow.com/questions/19527279/python-unicode-to-ascii-conversion
docset += [clean_html(rawtext)]
docnames += [filename[:-5]]
if not(len(docset) % 10): print("loaded " + str(len(docset)) + " documents")
# Give them to online LDA
# Also computes an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
(gamma, bound) = olda.update_lambda(wordids, wordcts)
# Arrays for adding batches of data to the DB
# doc_array = []
# doc_term_array = []
# for d in range(len(docnames)):
# doc_array.append((docnames[d], docset[d]))
doc_array = zip(docnames, docset)
# Add a batch of docs to the DB; this is the one DB task that is not in
# the separate DB write thread since later tasks depend on having doc ids.
# Since writes take so long, this also balaces the two threads time-wise.
doc_ids = db.add_docs(doc_array)
doc_topic_array = []
for d in range(len(gamma)):
doc_size = len(docset[d])
for k in range(len(gamma[d])):
doc_topic_array.append((doc_ids[d], k, gamma[d][k], gamma[d][k]/doc_size))
db.add_doc_topics(doc_topic_array)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(1, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
numpy.savetxt('lambda-%d.dat' % 1, olda._lambda)
numpy.savetxt('gamma-%d.dat' % 1, gamma)
topic_terms_array = []
for topic in range(len(olda._lambda)):
lambda_sum = sum(olda._lambda[topic])
for term in range(len(olda._lambda[topic])):
topic_terms_array.append((topic, term, olda._lambda[topic][term]/lambda_sum))
db.update_topic_terms(K, topic_terms_array)
gc.collect() # probably not necesary, but precautionary for long runs
db.print_task_update()
# The DB thread ends only when it has both run out of tasks and it has been
# signaled that it will not be recieving any more tasks
db.increment_batch_count()
db.signal_end()
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
comm = MPI.COMM_WORLD
size = comm.Get_size()
rank = comm.Get_rank()
# The number of documents to analyze each iteration
batchsize = 100
# The total number of documents in Wikipedia
D = 1000 #D = 2129792 for the whole set
# The number of topics
K = 30
# Our vocabulary
vocab = file('./com_all_words.txt').readlines()
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
iteration = 0
while iteration * batchsize * size <= D:
# Download some articles
docset = []
counts = []
linecache.clearcache()
startpoint = iteration * batchsize * size + batchsize * rank + 1
if startpoint > D: # search to the end
break # stop
# get the paper keywords in batches
for i in range(batchsize):
f1 = open('com_all_key.txt','r')
f2 = open('com_all.txt', 'r')
docset.append(linecache.getline('com_all_key.txt', min(D, startpoint))[:-1])
counts.append(linecache.getline('com_all.txt', min(D, startpoint))[:-1])
startpoint = startpoint + 1
# print type(docset), type(docset[0]), docset[0]
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset, counts)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab, counts)
# print wordcts[0:5]
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
iteration = iteration + 1
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
# print olda._lambda[0]
gammas = comm.gather(gamma, root = 0)
lambdas = comm.gather(olda._lambda, root = 0)
if rank == 0:
gamma_result = numpy.vstack((x for x in gammas))
lambda_result = numpy.vstack((x for x in lambdas))
numpy.savetxt('lambda_parallel.dat', olda._lambda)
numpy.savetxt('gamma_parallel.dat', gamma)
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
global D
global doc_list
global last_gamma_file
cut_words()
print D
print len(doc_list)
# The number of documents to analyze each iteration
batchsize = 64
# The total number of documents in Wikipedia
#D = 500
# The number of topics
K = int(sys.argv[1])
# How many documents to look at
if (len(sys.argv) < 3):
documentstoanalyze = int(D / batchsize)
else:
documentstoanalyze = int(sys.argv[1])
# Our vocabulary
vocab = file('./chineseNoStopWords.txt').readlines()
#print vocab
W = len(vocab)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1. / K, 1. / K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
print documentstoanalyze
perplexity_set = []
iter_set = []
for iteration in range(0, documentstoanalyze):
# Download some articles
'''
(docset, articlenames) = \
wikirandom.get_random_wikipedia_articles(batchsize)
'''
docset = doc_list[iteration * batchsize:(iteration + 1) * batchsize]
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
perplexity_set.append(numpy.exp(-perwordbound))
iter_set.append(iteration)
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 100 == 0 or iteration == documentstoanalyze - 1):
numpy.savetxt(
'./res_' + sys.argv[1] + '/lambda-%d.dat' % iteration,
olda._lambda)
numpy.savetxt('./res_' + sys.argv[1] + '/gamma-%d.dat' % iteration,
gamma)
last_gamma_file = './res_' + sys.argv[1] + '/lambda-%d.dat' % (
documentstoanalyze - 1)
save_lambda_path = 'last_lambda_' + sys.argv[1] + '.txt'
flast = open(save_lambda_path, 'w')
flast.write(last_gamma_file)
flast.close()
def main():
"""
Downloads and analyzes a bunch of random Wikipedia articles using
online VB for LDA.
"""
# The number of documents to analyze each iteration
batchsize = 64
# The total number of documents in Wikipedia
D = 3.3e6
# The number of topics
K = 100
# How many documents to look at
if (len(sys.argv) < 2):
documentstoanalyze = int(D/batchsize)
else:
documentstoanalyze = int(sys.argv[1])
# Our vocabulary
vocab = file('./dictnostops.txt').readlines()
W = len(vocab)
# Add terms and topics to the DB
db.init()
db.add_terms(vocab)
db.add_topics(K)
# Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
olda = onlineldavb.OnlineLDA(vocab, K, D, 1./K, 1./K, 1024., 0.7)
# Run until we've seen D documents. (Feel free to interrupt *much*
# sooner than this.)
for iteration in range(0, documentstoanalyze):
# Download some articles
(docset, articlenames) = \
wikirandom.get_random_wikipedia_articles(batchsize)
# Give them to online LDA
(gamma, bound) = olda.update_lambda(docset)
# Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, olda._vocab)
# Arrays for adding batches of data to the DB
doc_array = []
doc_term_array = []
for d in range(len(articlenames)):
doc_array.append((articlenames[d], docset[d]))
# Add a batch of docs to the DB; this is the one DB task that is not in
# the separate DB write thread since later tasks depend on having doc ids.
# Since writes take so long, this also balaces the two threads time-wise.
doc_ids = db.add_docs(doc_array)
doc_topic_array = []
for d in range(len(gamma)):
doc_size = len(docset[d])
for k in range(len(gamma[d])):
doc_topic_array.append((doc_ids[d], k, gamma[d][k], gamma[d][k]/doc_size))
db.add_doc_topics(doc_topic_array)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % \
(iteration, olda._rhot, numpy.exp(-perwordbound))
# Save lambda, the parameters to the variational distributions
# over topics, and gamma, the parameters to the variational
# distributions over topic weights for the articles analyzed in
# the last iteration.
if (iteration % 10 == 0):
numpy.savetxt('lambda-%d.dat' % iteration, olda._lambda)
numpy.savetxt('gamma-%d.dat' % iteration, gamma)
topic_terms_array =[]
for topic in range(len(olda._lambda)):
lambda_sum = sum(olda._lambda[topic])
for term in range(len(olda._lambda[topic])):
topic_terms_array.append((topic, term, olda._lambda[topic][term]/lambda_sum))
db.update_topic_terms(K, topic_terms_array)
gc.collect() # probably not necesary, but precautionary for long runs
db.print_task_update()
db.increment_batch_count()
# The DB thread ends only when it has both run out of tasks and it has been
# signaled that it will not be recieving any more tasks
db.signal_end()
pages = [strs.rstrip() for strs in pages]
D = len(pages)
pageID = range(0, D)
nBatches = D / batchsize
#Initialize the algorithm with alpha=1/K, eta=1/K, tau_0=1024, kappa=0.7
lda = onlineldavb.OnlineLDA(vocab, K, D, 1. / K, 1. / K, 128., 0.7)
#Run
nBatches = 100
for iteration in range(0, nBatches):
#Grab Abstracts
(docset, pagenames, pages,
pageID) = grabAbstracts(pages, batchsize, pageID)
#Give them to online LDA
(gamma, bound) = lda.update_lambda(docset)
#Compute an estimate of held-out perplexity
(wordids, wordcts) = onlineldavb.parse_doc_list(docset, lda._vocab)
perwordbound = bound * len(docset) / (D * sum(map(sum, wordcts)))
print '%d: rho_t = %f, held-out perplexity estimate = %f' % (
iteration, lda._rhot, numpy.exp(-perwordbound))
#Save to file
if (iteration % 10 == 0):
numpy.savetxt('lambda.dat', lda._lambda)
numpy.savetxt('gamma.dat', gamma)
