def compute_boundary(trace, eps=0.1):
refinements = mdt.volume_guided_refinement([rectangle], phi(trace))
return list(
fn.pluck(1,
fn.first(
fn.dropwhile(lambda x: -min(fn.pluck(0, x)) > eps,
refinements))))
def get_reps(zip_code):
representatives_ids_url = "https://congress.api.sunlightfoundation.com/legislators/locate?zip=" + zip_code + "&fields=bioguide_id&apikey=a5871887a24348d1a40d969832721c91"
representative_ids_list = pluck("bioguide_id", requests.get(representatives_ids_url).json()['results'])
bill_ids_url = "https://congress.api.sunlightfoundation.com/bills?query=NASA&fields=bill_id&last_vote_at__exists=true&apikey=a5871887a24348d1a40d969832721c91"
bill_ids = "|".join(pluck("bill_id", requests.get(bill_ids_url).json()['results']))
all_votes_url = "https://congress.api.sunlightfoundation.com/votes?bill_id__in=" + bill_ids + "&fields=voters&vote_type=passage&apikey=a5871887a24348d1a40d969832721c91"
all_votes = pluck("voters", requests.get(all_votes_url).json()['results'])
scores = dict(total=0, voters={})
for vote in all_votes:
scores['total'] += 1
for voter, value in vote.iteritems():
if voter in representative_ids_list:
if not voter in scores['voters'].keys():
scores['voters'][voter] = value['voter'];
scores['voters'][voter]['score'] = 0
if value['vote'] == "Nay":
scores['voters'][voter]['score'] -= 1
elif value['vote'] == "Yea":
scores['voters'][voter]['score'] += 1
pprint.pprint(json.dumps(scores), width=1)
return json.dumps(scores)
def top_k_custom_vector_similarity(query_docs, candidate_docs, k):
"""Given most similar docs by looking at custom trained vector means"""
if not all(['embedding_mean' in example for example in np.concatenate((query_docs, candidate_docs))]):
raise ValueError('Not all embedding means have been calculated')
distances = cosine_distances(pluck('embedding_mean', query_docs), pluck('embedding_mean', candidate_docs))
closest_docs = np.argsort(distances, axis=1)[:, :k]
return closest_docs
def apply_model_stream(docs):
global model
ids = _.pluck('id', docs)
msgs = map(lambda x: _.flatten([x])[0], _.pluck('msg', docs))
z = model['vect'].transform(msgs)
z = model['ch2'].transform(z)
z = model['tfidf'].transform(z)
pred = model['clf'].predict_proba(z)
for i in range(0, len(ids)):
yield {
"_id" : ids[i],
"_type" : config['elasticsearch']['_type'],
"_index" : config['elasticsearch']['_to_index'],
"_op_type" : "update",
"doc" : {
'__meta__' : {
'tri_pred' : {
'neg' : float(pred[i][0]),
'neut' : float(pred[i][1]),
'pos' : float(pred[i][2])
}
}
}
}
def apply_model_stream(docs):
global model
ids = _.pluck('id', docs)
msgs = map(lambda x: _.flatten([x])[0], _.pluck('msg', docs))
z = model['vect'].transform(msgs)
z = model['ch2'].transform(z)
z = model['tfidf'].transform(z)
pred = model['clf'].predict_proba(z)
for i in range(0, len(ids)):
yield {
"_id": ids[i],
"_type": config['elasticsearch']['_type'],
"_index": config['elasticsearch']['_to_index'],
"_op_type": "update",
"doc": {
'__meta__': {
'tri_pred': {
'neg': float(pred[i][0]),
'neut': float(pred[i][1]),
'pos': float(pred[i][2])
}
}
}
}
def record_model_stats(self, predict_proba, model_index):
"""Add to a dataframe with data on each model's accuracy on each pool"""
for pool_index, pool in enumerate(self.test_pools):
prediction_df = results_df(predict_proba, pluck('content', pool),
pluck('label', pool))
prediction_df['model'] = model_index
prediction_df['pool'] = pool_index
self.model_results = pd.concat((self.model_results, prediction_df))
def test_make_signal():
sig1 = signal(DATA1, start=0, end=4, tag='x')
sig2 = signal(DATA1, start=1, end=2, tag='x')
assert sig1 | sig2 == sig1
assert set(fn.pluck(0, DATA1)) == set(sig1.times())
assert set(fn.pluck(0, DATA1)) > set(sig2.times())
assert len(sig2.times()) == 1
assert set(fn.pluck(1, DATA1)) == {v['x'] for v in sig1.values()}
def find_bb(bounds):
bounds_1D = reduce(operator.concat, bounds)
lbs = [(np.array(
[k.bot for k in fn.pluck(i, list(fn.pluck(0, bounds_1D)))])).min()
for i in range(len(bounds_1D[0]))]
ubs = [(np.array(
[k.top for k in fn.pluck(i, list(fn.pluck(0, bounds_1D)))])).max()
for i in range(len(bounds_1D[0]))]
return np.array([[ubs[i] - lbs[i]] for i in range(len(lbs))]), lbs, ubs
def log_accuracy(self, predict_proba, model_number):
"""Log model accuracy"""
train_accuracy = results_df(predict_proba,
pluck('content', self.training_data),
pluck('label',
self.training_data)).correct.mean()
test_accuracy = self.model_results[self.model_results.model ==
model_number].correct.mean()
self.log('Train accuracy: {:.2f}'.format(train_accuracy))
self.log('Test accuracy: {:.2f}'.format(test_accuracy))
def mysql_to_file(cls):
conn = client.conn()
try:
sql = "show table status"
tables_infos = conn.query(sql)
data = {}
os.popen('rm ./public/toml/* -f')
os.popen('rm ./public/json/* -f')
xls_table_map = get_xls_table_map()
table_names = _.pluck("table_name", xls_table_map)
for k in tables_infos:
if k.Name in table_names:
data["tableInfos"] = k
sql = "SELECT * FROM " + k.Name
result = (conn.query(sql))
data["record"] = result
sql = "SHOW FULL FIELDS FROM " + k.Name
result1 = conn.query(sql)
data["fieldInfo"] = result1
cls.toToml(data)
cls.toJson(data)
zipTool.zip_dir("./public/toml", "./public/toml.zip")
zipTool.zip_dir("./public/json", "./public/json.zip")
return True
except:
traceback.print_exc()
return False
def load_data(self, depth=1):
if depth == 0:
return
self.json = self._client._get('paper/{}'.format(self.paperId))
data = {
'authors': [
Author(id, self._client)
for id in funcy.pluck('authorId', self.json['authors'])
if id is not None
],
'citationVelocity':
self.json['citationVelocity'],
'doi':
self.json['doi'],
'influentialCitationCount':
self.json['influentialCitationCount'],
'title':
self.json['title'],
'url':
self.json['url'],
'venue':
self.json['venue'],
'year':
self.json['year'],
}
self.data = data
if depth - 1 > 0:
for author in self.data['authors']:
author.load_data(depth=depth - 1)
def lexicographic_opt(func, ordering, tol):
dim = len(ordering)
assert set(fn.pluck(0, ordering)) == set(range(dim))
tol /= dim # Need to compensate for multiple binsearches.
rec = refine.bounding_box(
domain=mdtr.unit_rec(dim),
oracle=func
)
# If polarity is True, set initial value at bounding.top.
# O.w. use bounding.bot.
base = tuple((rec.top if p else rec.bot)[i] for i, p in sorted(ordering))
res_rec = mdtr.to_rec(zip(base, base))
for idx, polarity in ordering:
oracle = func
rec = mdtr.to_rec(
(0, 1) if i == idx else (p, p) for i, p in enumerate(base)
)
result_type, res_cand = binsearch(rec, oracle, eps=tol)
if result_type == SearchResultType.NON_TRIVIAL:
res_rec = res_cand
base = res_rec.bot
return res_rec
def load_data(self, depth=1):
if depth == 0:
return
self.json = self._client._get('author/{}'.format(self.authorId))
data = {
'papers': [
Paper(id, self._client)
for id in funcy.pluck('paperId', self.json['papers'])
if id is not None
],
'citationVelocity':
self.json['citationVelocity'],
'influentialCitationCount':
self.json['influentialCitationCount'],
'name':
self.json['name'],
'url':
self.json['url'],
}
self.data = data
if depth - 1 > 0:
for paper in self.data['papers']:
paper.load_data(depth=depth - 1)
def to_signal(ts_mapping) -> DiscreteSignal:
if isinstance(ts_mapping, DiscreteSignal):
return ts_mapping
start = min(fn.pluck(0, fn.cat(ts_mapping.values())))
signals = (signal(v, start, OO, tag=k) for k, v in ts_mapping.items())
return reduce(op.or_, signals)
def add_prediction_info(predict_proba, data):
"""Add entry for predictions and entropy to data"""
prediction_df = results_df(predict_proba, pluck('content', data))
for (row, predictions) in zip(data,
prediction_df.to_dict(orient='records')):
row.update(predictions)
return data
def pool_n(n, comments):
"""Pool every n comments"""
pool = lambda comments: ' '.join(pluck('body', comments))
pools = []
for i in range(0, len(comments), n):
pools.append(pool(comments[i: min(len(comments), i+n)]))
if len(pools[-1]) < n:
pools = pools[:-1]
return pools
def infer(concept_class, demos, brute_force=False):
candidates = list(traverse(concept_class, demos))
assert len(candidates) == 6
if not brute_force:
candidates = list(filter(is_candidate(demos), candidates))
candidates = list(fn.pluck(0, candidates))
print([score_candidate(demos)(c) for c in candidates])
return max(candidates, key=score_candidate(demos))
def pool_n(n, comments):
"""Pool every n comments"""
pool = lambda comments: ' '.join(pluck('body', comments))
pools = []
for i in range(0, len(comments), n):
pools.append(pool(comments[i:min(len(comments), i + n)]))
if len(pools[-1]) < n:
pools = pools[:-1]
return pools
def _find_addresses(self, family):
addresses = []
for interface in interfaces():
try:
if_data = ifaddresses(interface)[family]
addresses += pluck("addr", if_data)
except KeyError:
pass
return [a.rsplit("%", 1)[0] for a in addresses]
def get_times(x, tau, lo=None, hi=None):
end = min(v.domain.end() for v in x.values())
hi = hi + tau if hi + tau <= end else end
lo = lo + tau if lo + tau <= end else end
if lo > hi:
return []
elif hi == lo:
return [lo]
all_times = fn.cat(v.slice(lo, hi).items() for v in x.values())
return sorted(set(fn.pluck(0, all_times)))
def gather_stage(self, job):
latest_url = _gl_url(job.source.url, 'latest')
authors_url = _gl_url(job.source.url, 'authors')
documents_url = _gl_url(job.source.url, 'document_author')
latest_publication_date = model.Session.query(
func.max(HarvestObject.metadata_modified_date)).filter(
HarvestObject.source == job.source).scalar()
if latest_publication_date:
date_is_newer = F.partial(lt, latest_publication_date.isoformat())
latest = must_be_ok(requests.get(latest_url),
self._save_gather_error,
'Cannot fetch latest list', job).json()
fresh_publications = filter(
F.compose(date_is_newer, itemgetter('created')), latest)
if len(fresh_publications) < len(latest):
return self._create_harvest_objects(
F.pluck('id', fresh_publications), job)
authors = must_be_ok(requests.get(authors_url),
self._save_gather_error,
'Cannot fetch authors list', job).json()
ids = set()
log.debug("Collecting documents from %d authors", len(authors))
for i, author in enumerate(authors, 1):
log.debug('Fetching %d of %d record: %s', i, len(authors),
author['name'])
documents = F.pluck(
'id',
must_be_ok(
requests.get(documents_url, params={'id': author['name']}),
self._save_gather_error,
'Cannot fetch documents for author <%s>' % author['name'],
job).json())
for document in documents:
ids.add(document)
return self._create_harvest_objects(list(ids), job)
def iter_data(data):
if force:
return iter(data)
# Filter notes for excluding duplicates
exist_notes = self.get_notes(pluck('user_id', data))
for row in data:
user_id, body = str(row['user_id']), row['body']
if user_id not in exist_notes:
yield row
continue
bodies = map(normalize_note,
pluck('body', exist_notes[user_id]))
if normalize_note(body) not in bodies:
yield row
continue
logger.debug(
'The note with this body already exists: %r', row)
def __init__(self, train, test):
self.x_train, self.x_test = pluck('content', train), pluck('content', test)
self.y_train, self.y_test = pluck('label', train), pluck('label', test)
self.train_ids = pluck('id', train)
self.test_ids = pluck('id', test)
self.transform = DocToWordIndices().fit(self.x_train)
def get_all_tickers():
query = {
"size" : 0,
"aggs" : {
"ticker" : {
"terms" : {
"field" : "ticker",
"size" : 0
}
}
}
}
res = client.search(index = INDEX, doc_type = TYPE, body = query)
return _.pluck('key', res['aggregations']['ticker']['buckets'])
def get_all_tickers():
query = {
"size": 0,
"aggs": {
"ticker": {
"terms": {
"field": "ticker",
"size": 0
}
}
}
}
res = client.search(index=INDEX, doc_type=TYPE, body=query)
return _.pluck('key', res['aggregations']['ticker']['buckets'])
def from_sklearn_model(cls,
name,
dataset,
valid_percent,
model,
split_random_seed=None,
class_labels=None):
"""Constructor that splits data into train/valid and trains an sklearn model
Args:
name: (str) Name of the visualization (e.g. "movie review conv net")
dataset: (dataset.TextDataset) Dataset container.
valid_percent: (Float) Percentage of data to be held for visualization
model: (sklearn pipeline) Model with .fit() and .predictproba(x) methods
split_random_seed: (int) Random seed to be used when splitting data
class_labels: (List) List of class names
"""
split_random_seed = split_random_seed or randint(0, 2**32 - 1)
train_data, valid_data = train_test_split(
dataset.data,
test_size=valid_percent,
random_state=split_random_seed)
model.fit(pluck('content', train_data), pluck('label', train_data))
return cls(name, dataset, valid_data, model.predict_proba,
class_labels, train_data)
async def expand_multiple_items(item_list, relations):
for field, (type_, subfields) in relations.items():
path = field.split('.')
field = path[-1]
items_with_field = _find_items_having_path(item_list, path)
related_ids = list(compact(pluck(field, items_with_field)))
if not related_ids:
continue
related_items = await fetch_multiple_items(type_, related_ids, subfields)
related_by_id = {item['id']: item for item in compact(related_items)}
for item in items_with_field:
item[field] = related_by_id.get(item[field])
return item_list
def admin():
if 'google_token' in session:
auth_tok = session['google_token']
me = session['message']
flash("Welcome" + " " + me.get('name') + "!")
else:
session['message'] = {'email': ''}
auth_tok = {'access_token': '', 'refresh_token': ''}
superAdmins = flatten(pluck("adminUsers",
app.config.get('STATIONS')))
print repr(superAdmins)
users = []
for user in mongo.db.users.find():
users.append(user)
return render_template('admin.html', access_token=auth_tok,
refresh_token=auth_tok, session=session['message'],
config=current_app.config, users=users,
superAdmins=superAdmins)
def _get_addresses(self, family):
try:
return self.__cached_addresses[family]
except KeyError:
from netifaces import interfaces, ifaddresses
addresses = self.__cached_addresses[family] = set()
for interface in interfaces():
try:
ifdata = ifaddresses(interface)[family]
ifaddrs = map(lambda x: x.split("%")[0],
pluck("addr", ifdata))
addresses.update(ifaddrs)
except KeyError:
pass
return addresses
async def expand_multiple_items(item_list, relations):
for field, (type_, subfields) in relations.items():
path = field.split('.')
field = path[-1]
items_with_field = _find_items_having_path(item_list, path)
related_ids = list(compact(pluck(field, items_with_field)))
if not related_ids:
continue
related_items = await fetch_multiple_items(type_, related_ids,
subfields)
related_by_id = {item['id']: item for item in compact(related_items)}
for item in items_with_field:
item[field] = related_by_id.get(item[field])
return item_list
def is_true_QBF(e, quantifiers):
quantifiers = simplify_quantifier_prefix(quantifiers)
aig = cmn.extract_aig(e)
assert sum(map(len, fn.pluck(1, quantifiers))) == len(aig.inputs)
if len(quantifiers) is 1: # solve with SAT
if quantifiers[0][0] is 'a':
return is_valid(aig)
else:
assert quantifiers[0][0] is 'e'
return is_satisfiable(aig)
elif len(quantifiers) is 2: # 2QBF
true_return_code = CadetCodes.QBF_IS_TRUE.value
if quantifiers[-1][0] is 'a':
e = ~aiger.BoolExpr(aig)
aig = e.aig
true_return_code = CadetCodes.QBF_IS_FALSE.value
return _call_cadet(aig, quantifiers[1][1]) == true_return_code
else:
raise NotImplementedError('Cannot handle general QBF at the moment')
def bounding_box(domain, oracle, eps=1e-5):
"""Compute Bounding box. TODO: clean up"""
# TODO: remove r input and assume unit rec.
edges = [mdts.binsearch(r2, oracle, eps=eps) for r2 in box_edges(domain)]
rtypes = fn.pluck(0, edges)
if all(t == mdts.SearchResultType.TRIVIALLY_FALSE for t in rtypes):
return domain
elif all(t == mdts.SearchResultType.TRIVIALLY_TRUE for t in rtypes):
return mdtr.to_rec(domain.dim*[[0, 0]])
itvls = [r for t, r in edges if t == mdts.SearchResultType.NON_TRIVIAL]
def box_to_include(r):
return domain.backward_cone(r.top) & domain.forward_cone(r.bot)
bbox, *recs = fn.lmap(box_to_include, itvls)
for r in recs:
bbox = bbox.sup(r)
return bbox
def _find_address(self, address, family):
localhost = None
for interface in interfaces():
try:
if_data = ifaddresses(interface)[family]
addresses = pluck("addr", if_data)
except KeyError:
pass
else:
if addresses:
for a in addresses:
if a not in ("::1", "127.0.0.1"):
return a.rsplit("%", 1)[0]
if a:
localhost = a
if localhost:
return localhost
raise Exception("Failed to guess host for interface '%s'", address)
def __init__(self,
dataset,
model_fitting_func,
sampling_strategy,
pool_fractions,
sample_fractions,
test_frac,
name=None,
sort_by=None,
sort_by_reverse=False,
seed=1):
"""Instantiate experiment
Args:
dataset: TextDataSet for the experiment
model_fitting_func: Function from data -> (predict_proba function) model
sampling_strategy: Function from (n, data) -> the n examples selected for training
pool_fractions: List of floats indicating pool sizes
sample_fractions: List of floats indicating how many samples are taken from each pool
test_frac: (float) Fraction of each pool to reserve for testing
sort_by: (str) Key to sort by when creating pools (e.g. publication date)
sort_by_reverse: (bool) If True, sort by descending order when creating pools
seed: (int) Seed for random state
"""
self.dataset = dataset
self.name = name or self.dataset.name
if sort_by is not None:
self.dataset.data = sorted(self.dataset.data,
key=pluck(sort_by),
reverse=sort_by_reverse)
self.train_pools, self.test_pools = create_pools(
self.dataset.data, pool_fractions, test_frac, seed)
self.sample_from_pool = sampling_strategy
self.fit_model = model_fitting_func
self.sample_fractions = sample_fractions
# initialize the training data with the first pool
self.training_data = self.train_pools[0]
self.model_results = pd.DataFrame()
def get_data(self):
all_transactions = filter(
lambda t: t["type"] in ("request-changes", "accept"),
cat(pluck("transactions", self.raw_data)),
)
accept_transactions, reject_transactions = split(
lambda t: t["type"] == "accept", all_transactions)
most_accepting_author, most_accepting_count = Counter(
count_by(itemgetter("authorPHID"),
accept_transactions)).most_common(1)[0]
most_rejecting_author, most_rejecting_count = Counter(
count_by(itemgetter("authorPHID"),
reject_transactions)).most_common(1)[0]
return (
{
"author": self.users_mapping[most_accepting_author],
"count": most_accepting_count,
},
{
"author": self.users_mapping[most_rejecting_author],
"count": most_rejecting_count,
},
)
def __init__(self, train, test, embedding_size=128, lstm_cell_size=64, embedding_dropout_prob=.5,
dropout_prob=.5, kernel_l2=0.01):
self.x_train, self.x_test = pluck('content', train), pluck('content', test)
self.y_train, self.y_test = pluck('label', train), pluck('label', test)
self.train_ids = pluck('id', train)
self.test_ids = pluck('id', test)
self.transform = DocToWordIndices().fit(self.x_train)
self.x_train = self.transform.transform(self.x_train)
self.x_test = self.transform.transform(self.x_test)
vocab_size = np.max(self.x_train) + 1 # vocab and classes are 0 indexed
n_labels = int(np.max(self.y_train)) + 1
self.y_train, self.y_test = to_categorical(self.y_train), to_categorical(self.y_test)
self.model = Sequential()
self.model.add(Embedding(vocab_size, embedding_size, input_length=self.x_train.shape[1]))
self.model.add(Dropout(embedding_dropout_prob))
self.model.add(Bidirectional(LSTM(lstm_cell_size, kernel_regularizer=L1L2(l1=0.0, l2=kernel_l2))))
self.model.add(Dropout(dropout_prob))
self.model.add(Dense(n_labels, activation='softmax'))
self.model.compile('adam', 'categorical_crossentropy', metrics=['accuracy'])
def sample(self, Y, K=2.5e6, h=2e3, α_hat=None, Z_hat=None):
K, h = int(K), int(h)
result = defaultdict(list)
try:
# compute MLE and center it at origin
if α_hat is None or Z_hat is None:
α_hat, Z_hat = self.mle(Y)
Z_hat = Z_hat - np.mean(Z_hat, axis=1).reshape(-1, 1)
result['α_hat'] = α_hat
result['Z_hat'] = Z_hat
Z_k = Z_hat.copy()
α_k = α_hat.copy()
def update_Z(α_k, Z_k, detail=False):
Z_dag = self.qZ(Z_k)
# compute acceptance probability
n1 = self.loglikelihood(Y, α_k, Z_dag)
d1 = self.loglikelihood(Y, α_k, Z_k)
n2 = self.logpz(Z_dag)
d2 = self.logpz(Z_k)
p = np.exp(n1 + n2 - d1 - d2)
a = min(1, p)
# accept/reject step
u = scipy.stats.uniform.rvs()
accepted = u < a
if accepted:
Z_k = Z_dag
else:
pass
if detail:
_detail = {
'Z_dag': Z_dag, 'n1': n1, 'd1': d1, 'n2': n2,
'd2': d2, 'p': p, 'a': a, 'u': u, 'accepted': accepted,
}
else:
_detail = None
return Z_k, _detail
def update_α(α_k, Z_k, detail=False):
α_dag = self.qα(α_k)
# compute acceptance probability
n1 = self.loglikelihood(Y, α_dag, Z_k)
d1 = self.loglikelihood(Y, α_k, Z_k)
n2 = self.logpa(α_dag)
d2 = self.logpa(α_k)
p = np.exp(n1 + n2 - d1 - d2)
a = min(1, p)
# accept/reject step
u = scipy.stats.uniform.rvs()
accepted = u < a
if accepted:
α_k = α_dag
else:
pass
if detail:
_detail = {
'α_dag': α_dag, 'n1': n1, 'd1': d1, 'n2': n2,
'd2': d2, 'p': p, 'a': a, 'u': u, 'accepted': accepted,
}
else:
_detail = None
return α_k, _detail
logger.info('Sampling...')
for k in tqdm(range(K)):
# record results every h iterations
record_iter = k % h == 0
Z_k, Z_detail = update_Z(α_k, Z_k, detail=record_iter)
α_k, α_detail = update_α(α_k, Z_k, detail=record_iter)
if record_iter:
Z_k_star = self._compute_procrustean_transformation(
Z_k, Z_hat)
result['α'].append(α_k)
result['Z'].append(Z_k_star)
result['α_detail'].append(α_detail)
result['Z_detail'].append(Z_detail)
acceptance_rates = {
k: np.mean(list(funcy.pluck(
'accepted', result['{}_detail'.format(k)])))
for k in ['α', 'Z']
}
logger.info('Sampling...DONE')
logger.info('Acceptance rates: {!r}'.format(acceptance_rates))
return result
except KeyboardInterrupt:
logger.info('Sampling...ABORTED')
logger.info('Acceptance rates: {!r}'.format(acceptance_rates))
return result
def zip_pluck(d, keys, enumerate=False):
args = [pluck(k, d) for k in keys]
if enumerate:
args = [count(), *args]
return zip(*args)
def dense_data_and_labels(data_and_labels):
X = hstack(pluck(0, data_and_labels)).T
dense_labels = hstack([label*ones(data.shape[1]) for data, label in
data_and_labels])
return X, dense_labels
if type(x['date']) == type([]):
x['date'] = x['date'][0]
return x
def add_boarddate_and_indicator(x):
try:
x['boarddate'] = x['board_id'] + '_' + x['date'].split(' ')[0]
x['hv'] = x['boarddate'] in boarddates
except:
x['boarddate'] = None
x['hv'] = None
return x
hv = sc.textFile('data/high_volume_days.csv').map(lambda x: x.split(','))
hv = hv.map(lambda x: {'board' : x[0], 'date' : x[1], 'count' : x[2], 'boarddate' : x[0] + '_' + x[1]})
boarddates = _.pluck('boarddate', hv.collect())
inpath = 'data/post_dump_spark.json.txt'
raw = sc.textFile(inpath).map(lambda x: json.loads(x)).map(clean).cache()
rdd = raw.filter(lambda x: x.get('date', None))\
.filter(lambda x: x.get('msg', None))\
.map(add_boarddate_and_indicator)\
.cache()
def __init__(self, train, test, **model_options):
"""Create a conv net with keras
Args:
train: List of train examples
test: List of test (validation) examples
"""
embedding_size = model_options.get('embedding_size', 128)
filter_sizes = model_options.get('filter_sizes', [2, 3, 4])
n_filters = model_options.get('n_filters', 25)
pool_size = model_options.get('pool_size', 4)
hidden_dims = model_options.get('hidden_dims', 128)
dropout_prob = model_options.get('dropout_prob', .5)
conv_l2 = model_options.get('conv_l2', .05)
fc_l2 = model_options.get('fc_l2', .05)
balance_classes = model_options.get('balance_classes', False)
self.train_labels = pluck('label', train)
self.x_train, self.x_test = pluck('content', train), pluck('content', test)
self.y_train, self.y_test = pluck('label', train), pluck('label', test)
self.train_ids = pluck('id', train)
self.test_ids = pluck('id', test)
self.transform = DocToWordIndices().fit(self.x_train)
self.x_train = self.transform.transform(self.x_train)
self.x_test = self.transform.transform(self.x_test)
self.vocab_size = np.max(self.x_train) + 1 # vocab and classes are 0 indexed
self.n_labels = int(np.max(self.y_train)) + 1
self.y_train, self.y_test = to_categorical(self.y_train), to_categorical(self.y_test)
self.sequence_length = self.x_train.shape[1]
self.n_labels = self.y_train.shape[1]
self.balance_classes = balance_classes
conv_input = Input(shape=(self.sequence_length, embedding_size))
convs = []
for filter_size in filter_sizes:
conv = Conv1D(activation="relu", padding="valid",
strides=1, filters=n_filters, kernel_size=filter_size,
kernel_regularizer=L1L2(l1=0.0, l2=conv_l2))(conv_input)
pool = MaxPooling1D(pool_size=pool_size)(conv)
flatten = Flatten()(pool)
convs.append(flatten)
if len(filter_sizes) > 1:
conv_output = concatenate(convs)
else:
conv_output = convs[0]
conv_layer = Model(inputs=conv_input, outputs=conv_output)
self.model = Sequential()
self.model.add(Embedding(self.vocab_size, embedding_size,
input_length=self.sequence_length, weights=None))
self.model.add(conv_layer)
self.model.add(Dense(hidden_dims, kernel_regularizer=L1L2(l1=0.0, l2=fc_l2)))
self.model.add(Dropout(dropout_prob))
self.model.add(Activation('relu'))
self.model.add(Dense(self.n_labels, activation='softmax'))
self.model.compile(optimizer='adam', loss='categorical_crossentropy', metrics=['accuracy'])
def same_sources(s1, s2):
''' Do two states have the same sources (same names and same arguments)? '''
return (
fn.pluck('name', s1['sources']) == fn.pluck('name', s2['sources']) and
fn.pluck('args', s1['sources']) == fn.pluck('args', s2['sources'])
)