def train(self, sentences, labels, cross_validation = False):
x = []
y = []
for i in range(0, len(sentences)):
sentence = sentences[i]
prev = []
j = 0
for word in sentence:
body = word.lower()
featurespace = self._construct_featurespace(body, prev)
prev.append((body, labels[i][j]))
if len(prev) > self.chain_len:
del(prev[0])
x.append(featurespace.featureset)
j += 1
y.extend(labels[i])
prob = svm.problem(y, x)
if cross_validation:
param = svm.parameter('-c 1 -v 4 -s 4')
svm.train(prob, param)
else:
param = svm.parameter('-c 1 -s 4')
self._svm_model = svm.train(prob, param)
def train(self, sentences, labels, cross_validation=False):
x = []
y = []
for i in range(0, len(sentences)):
sentence = sentences[i]
prev = []
j = 0
for word in sentence:
body = word.lower()
featurespace = self._construct_featurespace(body, prev)
prev.append((body, labels[i][j]))
if len(prev) > self.chain_len:
del (prev[0])
x.append(featurespace.featureset)
j += 1
y.extend(labels[i])
prob = svm.problem(y, x)
if cross_validation:
param = svm.parameter('-c 1 -v 4 -s 4')
svm.train(prob, param)
else:
param = svm.parameter('-c 1 -s 4')
self._svm_model = svm.train(prob, param)
def train(self, x, y, biased=False):
data = []
for sample in x:
data.append(dict([(self._features.setId(d), sample[d]) for d in sample]))
labels = [self._labels.setId(C) for C in y]
if self._labels.count() == 2:
labels = [1 if label == 1 else -1 for label in labels]
param = liblinear.parameter("-c 1 -s 2 -q" + (" -B {0}".format(biased) if biased else ""))
else:
param = liblinear.parameter("-c 1 -s 4 -q" + (" -B {0}".format(biased) if biased else ""))
prob = liblinear.problem(labels, data)
self._model = liblinear.train(prob, param)
def train(self, x, y, biased=False):
data = []
for sample in x:
data.append(
dict([(self._features.setId(d), sample[d]) for d in sample]))
labels = [self._labels.setId(C) for C in y]
if self._labels.count() == 2:
labels = [1 if label == 1 else -1 for label in labels]
param = liblinear.parameter(
'-c 1 -s 2 -q' + (' -B {0}'.format(biased) if biased else ''))
else:
param = liblinear.parameter(
'-c 1 -s 4 -q' + (' -B {0}'.format(biased) if biased else ''))
prob = liblinear.problem(labels, data)
self._model = liblinear.train(prob, param)
def _complete_training(self, debug=False):
""" Forward data to external training and extract classifier information
"""
if self.str_label_function is not None:
self.label_function = eval(self.str_label_function)
self.labels = self.label_function()
options = "-c %.42f -e %.42f -s %d -B %d" % \
(self.complexity, self.tolerance, self.alg_num, self.offset)
for i,w in enumerate(self.weight):
options += " -w%d %.42f" % (i, w)
if not self.debug:
options += " -q"
self._log("Liblinear is now quiet!")
import liblinearutil
param = liblinearutil.parameter(options)
problem = liblinearutil.problem(self.labels, self.samples)
model = liblinearutil.train(problem, param)
self.calculate_classification_vector(model)
if self.debug:
print self.print_w
print self.b
def train(self):
sys.stderr.write('creating training problem...')
prob = problem(self.labels, self.contexts)
sys.stderr.write('done\ntraining with option(s) "' + self.parameters +
'"...')
self.model = train(prob, parameter(self.parameters))
sys.stderr.write('done\n')
def _lib_train_liblinear(user_tfidf, num_pos, num_neg, ignore):
param = parameter("-s 0")
sparse_user_tfidf, num_pos, num_neg = _convert_to_sparse_matrix(user_tfidf, num_pos, num_neg, ignore)
labels = ([1] * num_pos) + ([-1] * num_neg)
prob = problem(labels, sparse_user_tfidf)
modellog = train(prob, param)
return modellog
def train(self, data_train, data_dev):
"""Trains Minitagger on the given data."""
start_time = time.time()
assert self.__feature_extractor.is_training # Assert untrained
# Extract features (only labeled instances) and pass them to liblinear.
[label_list, features_list, _] = \
self.__feature_extractor.extract_features(data_train, False, [])
if not self.quiet:
print("{0} labeled instances (out of {1})".format(
len(label_list), data_train.num_instances))
print("{0} label types".format(len(data_train.label_count)))
print("{0} observation types".format(
len(data_train.observation_count)))
print("\"{0}\" feature template".format(
self.__feature_extractor.feature_template))
print("{0} feature types".format(
self.__feature_extractor.num_feature_types()))
problem = liblinearutil.problem(label_list, features_list)
self.__liblinear_model = \
liblinearutil.train(problem, liblinearutil.parameter("-q"))
self.__feature_extractor.is_training = False
if not self.quiet:
num_seconds = int(math.ceil(time.time() - start_time))
print("Training time: {0}".format(
str(datetime.timedelta(seconds=num_seconds))))
if data_dev is not None:
quiet_value = self.quiet
self.quiet = True
_, acc = self.predict(data_dev)
self.quiet = quiet_value
print("Dev accuracy: {0:.3f}%".format(acc))
def train(self, data_train, data_dev):
"""Trains Minitagger on the given data."""
start_time = time.time()
assert self.__feature_extractor.is_training # Assert untrained
# Extract features (only labeled instances) and pass them to liblinear.
[label_list, features_list, _] = \
self.__feature_extractor.extract_features(data_train, False, [])
if not self.quiet:
print("{0} labeled instances (out of {1})".format(
len(label_list), data_train.num_instances))
print("{0} label types".format(len(data_train.label_count)))
print("{0} observation types".format(
len(data_train.observation_count)))
print("\"{0}\" feature template".format(
self.__feature_extractor.feature_template))
print("{0} feature types".format(
self.__feature_extractor.num_feature_types()))
problem = liblinearutil.problem(label_list, features_list)
self.__liblinear_model = \
liblinearutil.train(problem, liblinearutil.parameter("-q"))
self.__feature_extractor.is_training = False
if not self.quiet:
num_seconds = int(math.ceil(time.time() - start_time))
print("Training time: {0}".format(
str(datetime.timedelta(seconds=num_seconds))))
if data_dev is not None:
quiet_value = self.quiet
self.quiet = True
_, acc = self.predict(data_dev)
self.quiet = quiet_value
print("Dev accuracy: {0:.3f}%".format(acc))
def train_liblinear(args):
model_name, gold_dir, dirs = args[0], args[1], args[2:]
vectors, predicates = get_data(gold_dir, dirs)
prob = problem(map(num_to_class, predicates), vectors)
param = parameter('-s 0')
model = train(prob, param)
save_model(model_name, model)
def _complete_training(self, debug=False):
""" Forward data to external training and extract classifier information
"""
if self.str_label_function is not None:
self.label_function = eval(self.str_label_function)
self.labels = self.label_function()
options = "-c %.42f -e %.42f -s %d -B %d" % \
(self.complexity, self.tolerance, self.alg_num, self.offset)
for i, w in enumerate(self.weight):
options += " -w%d %.42f" % (i, w)
if not self.debug:
options += " -q"
self._log("Liblinear is now quiet!")
import liblinearutil
param = liblinearutil.parameter(options)
problem = liblinearutil.problem(self.labels, self.samples)
model = liblinearutil.train(problem, param)
self.calculate_classification_vector(model)
if self.debug:
print self.print_w
print self.b
def train_liblinear(args):
model_name, gold_dir, dirs = args[0], args[1], args[2:]
vectors, predicates = get_data(gold_dir, dirs)
prob = problem(map(num_to_class, predicates), vectors)
param = parameter('-s 0')
model = train(prob, param)
save_model(model_name, model)
def train(self, data_train, data_test):
"""
Trains Minitagger on the given train data. If test data is given, it reports the accuracy of the trained model
and the F1_score (macro average of f1_score of each label)
@type data_train: SequenceData
@param data_train: the training data set
@type data_test: SequenceData
@param data_test: the test data set
"""
# keep the training start timestamp
start_time = time.time()
assert (self.__feature_extractor.is_training
), "In order to train, is_training flag should be True"
# Extract features only for labeled instances from data_train
[label_list, features_list,
_] = self.__feature_extractor.extract_features(data_train, False, [])
# print some useful information about the data
if not self.quiet:
print("{0} labeled words (out of {1})".format(
len(label_list), data_train.num_of_words))
print("{0} label types".format(len(data_train.label_count)))
print("{0} word types".format(len(data_train.word_count)))
print("\"{0}\" feature template".format(
self.__feature_extractor.feature_template))
print("{0} feature types".format(
self.__feature_extractor.num_feature_types()))
# define problem to be trained using the parameters received from the feature_extractor
problem = liblinearutil.problem(label_list, features_list)
# train the model (-q stands for quiet = True in the liblinearutil)
self.__liblinear_model = liblinearutil.train(
problem, liblinearutil.parameter("-q"))
# training is done, set is_training to False, so that prediction can be done
self.__feature_extractor.is_training = False
# print some useful information
if not self.quiet:
num_seconds = int(math.ceil(time.time() - start_time))
# how much did the training last
print("Training time: {0}".format(
str(datetime.timedelta(seconds=num_seconds))))
# perform prediction on the data_test and report accuracy
if data_test is not None:
quiet_value = self.quiet
self.quiet = True
pred_labels, acc = self.predict(data_test)
self.quiet = quiet_value
self.__save_prediction_to_file(data_test, pred_labels)
f1score, precision, recall = report_fscore(self.prediction_path +
"/predictions.txt",
wikiner=self.wikiner)
print("Accuracy: ", acc)
# create some files useful for debugging
if self.debug:
self.__debug(data_test, pred_labels)
return f1score, precision, recall
def train_regression(self, x, y):
data = []
for sample in x:
data.append(dict([(self._features.setId(d), sample[d]) for d in sample]))
self._regression = True
param = liblinear.parameter("-c 1 -s 0")
prob = liblinear.problem(y, data)
self._model = liblinear.train(prob, param)
def train_regression(self, x, y):
data = []
for sample in x:
data.append(
dict([(self._features.setId(d), sample[d]) for d in sample]))
self._regression = True
param = liblinear.parameter('-c 1 -s 0')
prob = liblinear.problem(y, data)
self._model = liblinear.train(prob, param)
def train_log_regr_liblinear(features, responses):
echo('Training with Liblinear')
prob = liblinearutil.problem(responses, features)
# -s 0: L2-regularized logistic regression (primal)
# -B 1: Fit a bias term
# -q: quiet mode
param = liblinearutil.parameter('-s 0 -B 1 -q')
return liblinearutil.train(prob, param)
def train_SVR_liblinear(features, responses):
echo('Training with Liblinear')
prob = liblinearutil.problem(responses, features)
# -s 11: L2-regularized L2-loss support vector regression (primal)
# -B 1: Fit a bias term
# -q: quiet mode
param = liblinearutil.parameter('-s 11 -B 1 -q')
return liblinearutil.train(prob, param)
def parallel_train_predict(args):
print("A process begins.")
x_train,y_train,x_test,y_test=args
problem = liblinearutil.problem(y_train, x_train)
parameter = liblinearutil.parameter('-s 0 -c 1')
time_start = time.clock()
model = liblinearutil.train(problem, parameter)
print("A process training finished in %f."%(time.clock()-time_start))
time_start = time.clock()
p_label, p_acc, p_val = liblinearutil.predict(y_test, x_test,model,'-b 0')
print("A process predicting finished in %f."%(time.clock()-time_start))
return p_val
def train(train_data, features, c):
x = []
y = []
for key in train_data:
y.append(train_data[key]['class'])
x.append(features[key])
prob = liblinearutil.problem(y, x)
param = liblinearutil.parameter('-q -c ' + str(c) )
model = liblinearutil.train(prob, param)
return model
def eval_SVM(X, y, Xhat, yhat):
# create classification problem
problem = liblinearutil.problem(y, X)
# set SVM parameters
svm_param = liblinearutil.parameter('-s 3 -c 10 -q -B 1')
# train SVM
model = liblinearutil.train(problem, svm_param)
# predict and evaluate
p_label, p_acc, p_val = liblinearutil.predict(yhat, Xhat, model, '-q')
# compute accuracy
acc, mse, scc = liblinearutil.evaluations(yhat, p_label)
return acc
def best_C(self,x,y):
"""
training using y=list,x=dict
parameter = string of parameters
searches for best C
"""
prob=lu.problem(y,x)
para=""
para+= "-s 2 -C -B %f -p %f -e %f" % (self.bias,
self.p,
self.eps)
print para
para1=lu.parameter(para)
self.model=lu.train(prob,para1)
best_C, best_rate = lu.train(y, x, para)
return best_C, best_rate
def main():
if __name__ == "__main__":
y, x = svm_read_problem(feature_file, return_scipy=True)
# train:test = 7:3
train_X = x[:14000]
train_y = y[:14000]
test_X = x[14000:]
test_y = y[14000:]
prob = problem(train_y, train_X)
param = parameter("-c 1 -s 2")
model = train(prob, param)
p_labs, p_acc, p_vals = predict(test_y, test_X, model)
accuracy, precision, recall = metrics_result(test_y, p_labs)
print
print "accuracy: ", accuracy
print "precision: ", precision
print "recall: ", recall
def train(self,x,y):
"""
training using y=list,x=dict
parameter = string of parameters
"""
prob=lu.problem(y,x)
para=""
para+= "-s %d -c %f -B %f -p %f -e %f" % (self.L,
self.c,
self.bias,
self.p,
self.eps)
if(self.v!=0):
para+=" -v %d" % self.v
if(self.q!=0):
para+= " -q"
print para
para1=lu.parameter(para)
self.model=lu.train(prob,para1)
return True
def classify(ds_cur=None):
from os import chdir, system
chdir('./liblinear-2.1/python/')
from liblinearutil import problem, parameter, train, predict
chdir('../../')
from pdb import set_trace
from tqdm import tqdm
from pymongo import MongoClient
from json import dumps
from bson.objectid import ObjectId
set_trace()
dont_include = {'_id': 0}
print 'List of variables:\n'
for key in variable_lookup:
print key[1]
ch1 = raw_input(
'Input "s" to select custom fields (default selection - all fields):')
if ch1 == 's':
print 'Please input 0 for fields you would like to exclude, any other input would include it.'
for key in variable_lookup:
if key[0] == 'class':
continue
ch2 = raw_input(key[1] + ':')
if ch2 == '0':
dont_include[key[0]] = 0
if ds_cur == None:
conn = MongoClient('mongodb://localhost:27017')
dataset = conn['rmpdb']['dataset_profs_ten_over']
ds_cur = dataset.find(filter={}, projection=dont_include)
dataset2 = conn['rmpdb']['dataset_profs_five_over_less_ten']
ds_cur2 = dataset2.find(filter={}, projection=dont_include)
X = [] # Variables
Y = [] # Classes
ids = [] # Keep track of professor IDs
X2 = [] # Variables
Y2 = [] # Classes
ids2 = [] # Keep track of professor IDs
print 'Building training set according to selection..'
for row in tqdm(ds_cur):
x_dict = dict()
for key in row:
if key == 'class':
Y.append(int(row[key]))
elif key == 'prof_id':
ids.append(row[key])
elif isNan(row[key]):
continue
else:
x_dict[int(key)] = float(row[key])
X.append(x_dict)
for row in tqdm(ds_cur2):
x_dict2 = dict()
for key in row:
if key == 'class':
Y2.append(int(row[key]))
elif key == 'prof_id':
ids2.append(row[key])
elif isNan(row[key]):
continue
else:
x_dict2[int(key)] = float(row[key])
X2.append(x_dict2)
ch = raw_input(
'Include top words for males and females as features? (y/n) [n]: ')
if ch == 'y':
from glob import glob
from json import loads
vec_files = glob('../logs/*.vec')
if not len(vec_files) == 0:
print 'Word vector files found in ../logs: \n'
print vec_files
fch = raw_input(
'Enter name of file without extension. [../logs/trial0.vec] Enter 0 to skip. ../logs/'
)
if fch == '0':
male_vector, female_vector = build_vector()
else:
try:
f = open('../logs/' + fch + '.vec', 'r')
male_vector, female_vector = loads(f.read())
except:
f = open('../logs/trial0.vec', 'r')
male_vector, female_vector = loads(f.read())
else:
male_vector, female_vector = build_vector()
print 'Male vectors as (word, count)'
print male_vector
print "============================================="
print 'Female vectors as (word, count)'
print female_vector
print "============================================="
print 'Calculating word features for all professors in dataset. This shall take some time.'
print 'Depending on your cutoff, this can take from 4 - 6 hours. Probably a good idea to get some other stuff done..'
male_words = [tup[0] for tup in male_vector]
female_words = [tup[0] for tup in female_vector]
union_words = list(set(male_words).union(set(female_words)))
final_words = list()
print 'Select words you want to remove by entering "x".'
for word in union_words:
wch = raw_input(word + ':')
if wch == 'x':
continue
else:
final_words.append(word)
from string import punctuation
exclude = set(punctuation)
rmpdb = MongoClient('mongodb://localhost:27017')['rmpdb']
for i in tqdm(range(len(ids))):
prof_id = ids[i]
# male_dict = dict()
# female_dict = dict()
# for tup in male_vector:
# male_dict[tup[0]] = 0
# for tup in female_vector:
# female_dict[tup[0]] = 0
vec_dict = dict()
for word in final_words:
vec_dict[word] = 0
prof_comments = rmpdb['profs'].find_one(
{'_id': ObjectId(prof_id)}, {
'_id': 0,
'all comments.rComments': 1
})
for comment in prof_comments['all comments']:
text = comment['rComments']
no_punc_text = ''.join(ch for ch in text if ch not in exclude)
toks = no_punc_text.split()
for tok in toks:
# if tok.lower() in male_dict:
# male_dict[tok.lower()] += 1
# if tok.lower() in female_dict:
# female_dict[tok.lower()] += 1
if tok.lower() in vec_dict:
vec_dict[tok.lower()] += 1
feature_counter = 53 #starts right after variable_lookup['53']
# for j in range(len(male_vector)):
# feature_counter += 1
# tup = male_vector[j]
# if not male_dict[tup[0]] == 0:
# X[i][feature_counter] = male_dict[tup[0]]
# for j in range(len(female_vector)):
# feature_counter += 1
# tup = female_vector[j]
# if not female_dict[tup[0]] == 0:
# X[i][feature_counter] = female_dict[tup[0]]
for j in range(len(final_words)):
feature_counter += 1
word = final_words[j]
if not vec_dict[word] == 0:
X[i][feature_counter] = vec_dict[word]
# if feature_counter == 97:
# break
print "Building test set.."
for i in tqdm(range(len(ids2))):
prof_id = ids2[i]
# male_dict = dict()
# female_dict = dict()
# for tup in male_vector:
# male_dict[tup[0]] = 0
# for tup in female_vector:
# female_dict[tup[0]] = 0
vec_dict = dict()
for word in final_words:
vec_dict[word] = 0
prof_comments = rmpdb['profs'].find_one(
{'_id': ObjectId(prof_id)}, {
'_id': 0,
'all comments.rComments': 1
})
for comment in prof_comments['all comments']:
text = comment['rComments']
no_punc_text = ''.join(ch for ch in text if ch not in exclude)
toks = no_punc_text.split()
for tok in toks:
# if tok.lower() in male_dict:
# male_dict[tok.lower()] += 1
# if tok.lower() in female_dict:
# female_dict[tok.lower()] += 1
if tok.lower() in vec_dict:
vec_dict[tok.lower()] += 1
feature_counter = 53 #starts right after variable_lookup['53']
# for j in range(len(male_vector)):
# feature_counter += 1
# tup = male_vector[j]
# if not male_dict[tup[0]] == 0:
# X[i][feature_counter] = male_dict[tup[0]]
# for j in range(len(female_vector)):
# feature_counter += 1
# tup = female_vector[j]
# if not female_dict[tup[0]] == 0:
# X[i][feature_counter] = female_dict[tup[0]]
for j in range(len(final_words)):
feature_counter += 1
word = final_words[j]
if not vec_dict[word] == 0:
X2[i][feature_counter] = vec_dict[word]
print 'Words used:'
print final_words
else:
pass
print 'Writing temp files for AUC calculation..'
build_svm_file(X, Y)
print 'Temp file written..'
print 'Features used:'
fstr = list()
for key in variable_lookup:
if key[0] in dont_include or key[0] == 'class':
continue
else:
fstr.append(key[1])
print dumps(fstr)
print '======================================\n'
prob = problem(Y, X)
param = parameter('-s 6 -v 10')
m = train(prob, param)
print 'Evaluating..\n'
system('liblinear-2.1/train -s 6 -v 10 liblinear-2.1/temp_ds')
model = train(prob, parameter('-s 6 -q'))
#system('rm liblinear-2.1/temp_ds')
print 'Testing model on test set..'
p_Y2, p_acc, p_vals = predict(Y2, X2, model)
contingency_mat = [[0, 0], [0, 0]]
for i in range(len(Y2)):
if (Y2[i] == 0) and (p_Y2[i] == 0):
contingency_mat[0][0] += 1
elif (Y2[i] == 0) and (p_Y2[i] == 1):
contingency_mat[0][1] += 1
elif (Y2[i] == 1) and (p_Y2[i] == 0):
contingency_mat[1][0] += 1
else:
contingency_mat[1][1] += 1
return (model, p_acc, contingency_mat)
def classify(ds_cur = None):
from os import chdir, system
chdir('./liblinear-2.1/python/')
from liblinearutil import problem, parameter, train, predict
chdir('../../')
from pdb import set_trace
from tqdm import tqdm
from pymongo import MongoClient
from json import dumps
from bson.objectid import ObjectId
set_trace()
dont_include = {'_id' : 0}
print 'List of variables:\n'
for key in variable_lookup:
print key[1]
ch1 = raw_input('Input "s" to select custom fields (default selection - all fields):')
if ch1 == 's':
print 'Please input 0 for fields you would like to exclude, any other input would include it.'
for key in variable_lookup:
if key[0] == 'class':
continue
ch2 = raw_input(key[1] + ':')
if ch2 == '0':
dont_include[key[0]] = 0
if ds_cur == None:
conn = MongoClient('mongodb://localhost:27017')
dataset = conn['rmpdb']['dataset_profs_ten_over']
ds_cur = dataset.find(filter = {}, projection = dont_include)
dataset2 = conn['rmpdb']['dataset_profs_five_over_less_ten']
ds_cur2 = dataset2.find(filter = {}, projection = dont_include)
X = [] # Variables
Y = [] # Classes
ids = [] # Keep track of professor IDs
X2 = [] # Variables
Y2 = [] # Classes
ids2 = [] # Keep track of professor IDs
print 'Building training set according to selection..'
for row in tqdm(ds_cur):
x_dict = dict()
for key in row:
if key == 'class':
Y.append(int(row[key]))
elif key == 'prof_id':
ids.append(row[key])
elif isNan(row[key]):
continue
else:
x_dict[int(key)] = float(row[key])
X.append(x_dict)
for row in tqdm(ds_cur2):
x_dict2 = dict()
for key in row:
if key == 'class':
Y2.append(int(row[key]))
elif key == 'prof_id':
ids2.append(row[key])
elif isNan(row[key]):
continue
else:
x_dict2[int(key)] = float(row[key])
X2.append(x_dict2)
ch = raw_input('Include top words for males and females as features? (y/n) [n]: ')
if ch == 'y':
from glob import glob
from json import loads
vec_files = glob('../logs/*.vec')
if not len(vec_files) == 0:
print 'Word vector files found in ../logs: \n'
print vec_files
fch = raw_input('Enter name of file without extension. [../logs/trial0.vec] Enter 0 to skip. ../logs/')
if fch == '0':
male_vector, female_vector = build_vector()
else:
try:
f = open('../logs/' + fch + '.vec', 'r')
male_vector, female_vector = loads(f.read())
except:
f = open('../logs/trial0.vec', 'r')
male_vector, female_vector = loads(f.read())
else:
male_vector, female_vector = build_vector()
print 'Male vectors as (word, count)'
print male_vector
print "============================================="
print 'Female vectors as (word, count)'
print female_vector
print "============================================="
print 'Calculating word features for all professors in dataset. This shall take some time.'
print 'Depending on your cutoff, this can take from 4 - 6 hours. Probably a good idea to get some other stuff done..'
male_words = [tup[0] for tup in male_vector]
female_words = [tup[0] for tup in female_vector]
union_words = list(set(male_words).union(set(female_words)))
final_words = list()
print 'Select words you want to remove by entering "x".'
for word in union_words:
wch = raw_input(word + ':')
if wch == 'x':
continue
else:
final_words.append(word)
from string import punctuation
exclude = set(punctuation)
rmpdb = MongoClient('mongodb://localhost:27017')['rmpdb']
for i in tqdm(range(len(ids))):
prof_id = ids[i]
# male_dict = dict()
# female_dict = dict()
# for tup in male_vector:
# male_dict[tup[0]] = 0
# for tup in female_vector:
# female_dict[tup[0]] = 0
vec_dict = dict()
for word in final_words:
vec_dict[word] = 0
prof_comments = rmpdb['profs'].find_one({'_id' : ObjectId(prof_id)}, {'_id' : 0, 'all comments.rComments' : 1})
for comment in prof_comments['all comments']:
text = comment['rComments']
no_punc_text = ''.join(ch for ch in text if ch not in exclude)
toks = no_punc_text.split()
for tok in toks:
# if tok.lower() in male_dict:
# male_dict[tok.lower()] += 1
# if tok.lower() in female_dict:
# female_dict[tok.lower()] += 1
if tok.lower() in vec_dict:
vec_dict[tok.lower()] += 1
feature_counter = 53 #starts right after variable_lookup['53']
# for j in range(len(male_vector)):
# feature_counter += 1
# tup = male_vector[j]
# if not male_dict[tup[0]] == 0:
# X[i][feature_counter] = male_dict[tup[0]]
# for j in range(len(female_vector)):
# feature_counter += 1
# tup = female_vector[j]
# if not female_dict[tup[0]] == 0:
# X[i][feature_counter] = female_dict[tup[0]]
for j in range(len(final_words)):
feature_counter += 1
word = final_words[j]
if not vec_dict[word] == 0:
X[i][feature_counter] = vec_dict[word]
# if feature_counter == 97:
# break
print "Building test set.."
for i in tqdm(range(len(ids2))):
prof_id = ids2[i]
# male_dict = dict()
# female_dict = dict()
# for tup in male_vector:
# male_dict[tup[0]] = 0
# for tup in female_vector:
# female_dict[tup[0]] = 0
vec_dict = dict()
for word in final_words:
vec_dict[word] = 0
prof_comments = rmpdb['profs'].find_one({'_id' : ObjectId(prof_id)}, {'_id' : 0, 'all comments.rComments' : 1})
for comment in prof_comments['all comments']:
text = comment['rComments']
no_punc_text = ''.join(ch for ch in text if ch not in exclude)
toks = no_punc_text.split()
for tok in toks:
# if tok.lower() in male_dict:
# male_dict[tok.lower()] += 1
# if tok.lower() in female_dict:
# female_dict[tok.lower()] += 1
if tok.lower() in vec_dict:
vec_dict[tok.lower()] += 1
feature_counter = 53 #starts right after variable_lookup['53']
# for j in range(len(male_vector)):
# feature_counter += 1
# tup = male_vector[j]
# if not male_dict[tup[0]] == 0:
# X[i][feature_counter] = male_dict[tup[0]]
# for j in range(len(female_vector)):
# feature_counter += 1
# tup = female_vector[j]
# if not female_dict[tup[0]] == 0:
# X[i][feature_counter] = female_dict[tup[0]]
for j in range(len(final_words)):
feature_counter += 1
word = final_words[j]
if not vec_dict[word] == 0:
X2[i][feature_counter] = vec_dict[word]
print 'Words used:'
print final_words
else:
pass
print 'Writing temp files for AUC calculation..'
build_svm_file(X, Y)
print 'Temp file written..'
print 'Features used:'
fstr = list()
for key in variable_lookup:
if key[0] in dont_include or key[0] == 'class':
continue
else:
fstr.append(key[1])
print dumps(fstr)
print '======================================\n'
prob = problem(Y, X)
param = parameter('-s 6 -v 10')
m = train(prob, param)
print 'Evaluating..\n'
system('liblinear-2.1/train -s 6 -v 10 liblinear-2.1/temp_ds')
model = train(prob, parameter('-s 6 -q'))
#system('rm liblinear-2.1/temp_ds')
print 'Testing model on test set..'
p_Y2, p_acc, p_vals = predict(Y2, X2, model)
contingency_mat = [[0, 0], [0, 0]]
for i in range(len(Y2)):
if (Y2[i] == 0) and (p_Y2[i] == 0):
contingency_mat[0][0] += 1
elif (Y2[i] == 0) and (p_Y2[i] == 1):
contingency_mat[0][1] += 1
elif (Y2[i] == 1) and (p_Y2[i] == 0):
contingency_mat[1][0] += 1
else:
contingency_mat[1][1] += 1
return (model, p_acc, contingency_mat)
def simpleLibLinear(X_train, Y_train):
prob = ll.problem(Y_train, X_train)
param = ll.parameter('-c ' + str(c))
m = ll.train(prob, param)
return m
return problems
def parallel_train_predict(args):
print("A process begins.")
x_train,y_train,x_test,y_test=args
problem = liblinearutil.problem(y_train, x_train)
parameter = liblinearutil.parameter('-s 0 -c 1')
time_start = time.clock()
model = liblinearutil.train(problem, parameter)
print("A process training finished in %f."%(time.clock()-time_start))
time_start = time.clock()
p_label, p_acc, p_val = liblinearutil.predict(y_test, x_test,model,'-b 0')
print("A process predicting finished in %f."%(time.clock()-time_start))
return p_val
if parallel_computing==0:
problems = divide_problem(20000,20000,data_only=1)
parameter = liblinearutil.parameter('-s 0 -c 1')
models=[]
time_start = time.clock()
for i in range(len(problems)):
t=[]
for j in range(len(problems[i])):
t.append(train(problems[i][j][1],problems[i][j][0]))
models.append(t)
print("Exercise 3 with MLP training finished in %f."%(time.clock()-time_start))
time_start = time.clock()
p_val=[-1e100]*len(data.x_test)
for i in range(len(problems)):
t=[1e100]*len(data.x_test)
for j in range(len(problems[i])):
p_val_ij=predict(data.x_test, data.y_test,models[i][j])
for k in range(len(t)):
def train(self):
sys.stderr.write('creating training problem...')
prob = problem(self.labels, self.contexts)
sys.stderr.write('done\ntraining with option(s) "'+self.parameters+'"...')
self.model = train(prob, parameter(self.parameters))
sys.stderr.write('done\n')
def simpleLibLinear(X_train,Y_train):
prob = ll.problem(Y_train,X_train)
param = ll.parameter('-c '+str(c))
m = ll.train(prob, param)
return m
