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document_processor.py
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document_processor.py
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import argparse
from scipy.stats.mstats_basic import threshold
import config
import itertools
import operator
from sklearn.feature_extraction.text import TfidfVectorizer
from sklearn.decomposition import TruncatedSVD
from sklearn.pipeline import make_pipeline
from sklearn.preprocessing import Normalizer
from sklearn.metrics.pairwise import cosine_similarity
from scipy import sparse
from sklearn import decomposition
from sklearn.cluster import KMeans
import itertools
from sklearn.metrics import f1_score
import matplotlib.pyplot as plt
from sklearn.cluster import AgglomerativeClustering
import pprint as pp
import json
import numpy as np
import text_utils as tu
from text_utils import TextUtils
import mongo_hc
import warnings
__author__ = 'biagio'
'''
--------------------------------------------------------------------------------
test1: tfidf_vectorizer = TfidfVectorizer(max_df=0.5, max_features=200000,
min_df=2, stop_words='english',
use_idf=True, tokenizer=tu.TextUtils.tokenize_and_stem,
ngram_range=(1, 1))
re0 average f_score = 0.638534830083
re1 average f_score = 0.765673119777
test2: tfidf_vectorizer = TfidfVectorizer(max_df=0.6, max_features=200000,
min_df=2, stop_words='english',
use_idf=True, tokenizer=tu.TextUtils.tokenize_and_stem,
ngram_range=(1, 1))
re0 average f_score = 0.658152070681
re1 average f_score = 0.772388663679
test3: tfidf_vectorizer = TfidfVectorizer(max_df=0.65, max_features=200000,
min_df=2, stop_words='english',
use_idf=True, tokenizer=tu.TextUtils.tokenize_and_stem,
ngram_range=(1, 1))
re0 average f_score =
re1 average f_score = 0.772388663679
test4: tfidf_vectorizer = TfidfVectorizer(max_df=0.7, max_features=200000,
min_df=2, stop_words='english',
use_idf=True, tokenizer=tu.TextUtils.tokenize_and_stem,
ngram_range=(1, 1))
re0 average f_score =
re1 average f_score = 0.772388663679
test5: tfidf_vectorizer = TfidfVectorizer(max_df=0.8, max_features=200000,
min_df=2, stop_words='english',
use_idf=True, tokenizer=tu.TextUtils.tokenize_and_stem,
ngram_range=(1, 1))
re0 average f_score =
re1 average f_score = 0.772388663679
test6: tfidf_vectorizer = TfidfVectorizer(max_df=1.0, max_features=200000,
min_df=2, stop_words='english',
use_idf=True, tokenizer=tu.TextUtils.tokenize_and_stem,
ngram_range=(1, 1))
re0 average f_score = 0.657453792372
re1 average f_score = 0.77630555331
test7: tfidf_vectorizer = TfidfVectorizer(max_df=1.0, max_features=200000,
min_df=0.005, stop_words='english',
use_idf=True, tokenizer=tu.TextUtils.tokenize_and_stem,
ngram_range=(1, 1))
re0 average f_score = 0.650254341531
re1 average f_score = 0.79978824548
test8: tfidf_vectorizer = TfidfVectorizer(max_df=1.0, max_features=200000,
min_df=0.006, stop_words='english',
use_idf=True, tokenizer=tu.TextUtils.tokenize_and_stem,
ngram_range=(1, 1))
re0 average f_score = 0.626006569483
re1 average f_score = 0.781790453423
test9: tfidf_vectorizer = TfidfVectorizer(max_df=1.0, max_features=200000,
min_df=0.004, stop_words='english',
use_idf=True, tokenizer=tu.TextUtils.tokenize_and_stem,
ngram_range=(1, 1))
re0 average f_score = 0.628345214855
re1 average f_score = 0.785153400931
--------------------------------------------------------------------------------
'''
#TODO: questo ha la priorita' assoluta, c'e' troppo casino e codice ripetuto
class DocumentsProcessor:
def __init__(self, dataset_name, db='hc'):
files_name = ['re0, re1']
self.dataset_name = dataset_name
self.mongo = mongo_hc.MongoHC(db, self.dataset_name)
self.dbpedia = mongo_hc.MongoHC(db, 'dbpedia')
self.tokenizer = TextUtils.tokenize_and_stem
@property
def data(self):
'''
Property that read data from JSON file
:return: data
dictionary that contatain two keys:
data -> all the documents' text
label -> all the documents' label in the same order that data
'''
data = None
with open(config.PRE_PROCESSED_DATASETS + self.dataset_name + '.json',
'r') as f:
data = json.load(f)
f.close()
return data
def get_data_with_abstract(self, data):
only_text = []
for doc in data:
text = doc['text']
if 'abstracts' in doc:
for abs in doc['abstracts']:
text += '\n'
text += abs['value']
only_text.append(text)
return only_text
def get_data(self, abstract=False):
data = self.mongo.get_all(order_by='id_doc')
data = [doc for doc in data]
if abstract:
only_text = self.get_data_with_abstract(data)
else:
only_text = [doc['text'] for doc in data]
only_labels = [doc['label'] for doc in data]
tfidf_vectorizer = TfidfVectorizer(max_df=0.5,
max_features=200000,
min_df=2,
stop_words='english',
strip_accents='unicode',
use_idf=True,
ngram_range=(1, 1),
norm='l2',
tokenizer=TextUtils.tokenize_and_stem)
tfidf_matrix = tfidf_vectorizer.fit_transform(only_text)
print 'After tfidf vectorizer: found %s documents and %s terms' \
% (tfidf_matrix.shape[0], tfidf_matrix.shape[1])
dict_out = {}
for l in sorted(set(only_labels)):
dict_out[l] = {
'docs': [],
'fscore': ''
}
for doc in data:
dict_out[doc['label']]['docs'].append(doc['id_doc'])
return tfidf_matrix, dict_out
def entities_distribution(self, d):
data = [doc for doc in d]
entities = set()
for d in data:
for e in d['alchemy_response']['entities']:
entities.add(e['text'])
entities_dict = {e: 0 for i, e in enumerate(entities)}
for d in data:
for e in d['alchemy_response']['entities']:
entities_dict[e['text']] += 1
return entities_dict, entities
def get_data_with_alchemy(self, relevance_threshold=0.8, min_df=0.003,
gamma=0.89, filter=False):
print gamma
data = self.mongo.get_all(order_by='id_doc')
data = [doc for doc in data]
only_text = [doc['text'] for doc in data]
ent_dict, ent_set = self.entities_distribution(data)
if filter:
entities_set = set([k for k, v in ent_dict.iteritems() if (v > 2 and v < 300)])
else:
entities_set = ent_set
'''entities_name = []
for doc in data:
if 'alchemy_response' in doc:
for e in doc['alchemy_response']['entities']:
entities_name.append(e['text'])
entities_set = set(entities_name)'''
entities = {e: i for i, e in enumerate(entities_set)}
alchemy_entities = np.zeros((len(data), len(entities_set)))
for doc in data:
if 'alchemy_response' in doc:
for e in doc['alchemy_response']['entities']:
rel = np.float64(e['relevance'])
name = e['text']
if rel > relevance_threshold and name in entities:
alchemy_entities[doc['id_doc']][entities[name]] = rel
entities_sparse = sparse.csr_matrix(alchemy_entities)
tfidf_vectorizer = TfidfVectorizer(max_df=0.5,
max_features=200000,
min_df=min_df,
stop_words='english',
strip_accents='unicode',
use_idf=True,
ngram_range=(1, 1),
norm='l2',
tokenizer=TextUtils.tokenize_and_stem)
tfidf_matrix = tfidf_vectorizer.fit_transform(only_text)
print 'tfifd matrix dimension: %s x %s' %(tfidf_matrix.shape[0],
tfidf_matrix.shape[1])
print 'alchemy matrix dimension: %s x %s ' %(entities_sparse.shape[0],
entities_sparse.shape[1])
print 'non zero elements in alchemy matrix: %s' \
% len(entities_sparse.data)
'''print tfidf_matrix[tfidf_matrix > 0].mean()
print tfidf_matrix[tfidf_matrix > 0].max()
print entities_sparse[entities_sparse > 0].mean()
print entities_sparse[entities_sparse > 0].max()
print '#' * 80'''
#print 'after balancing'
tfidf_matrix = tfidf_matrix * gamma
entities_sparse = entities_sparse * (1 - gamma)
#print tfidf_matrix[tfidf_matrix > 0].mean()
#print tfidf_matrix[tfidf_matrix > 0].max()
#print entities_sparse[entities_sparse > 0].mean()
#print entities_sparse[entities_sparse > 0].max()
f_score_dict = self.labels_dict(data)
params = tfidf_vectorizer.get_params()
params['alchemy_entities'] = entities_sparse.shape[1]
params['original_terms'] = tfidf_matrix.shape[0]
params['gamma'] = gamma
params['relevance_threshold'] = relevance_threshold
params['classes'] = len(f_score_dict)
params['tokenizer'] = 'TextUtils.tokenize_and_stem'
del params['dtype']
params['avg_nnz_row'] = (entities_sparse > 0).sum(1).mean()
return sparse.hstack([tfidf_matrix, entities_sparse]), f_score_dict,\
params
def get_dandelion_entities(self, data):
entities = set()
for d in data:
for e in d['dandelion']['annotations']:
entities.add(e['title'])
entities_dict = {e: 0 for e in entities}
for d in data:
for e in d['dandelion']['annotations']:
entities_dict[e['title']] += 1
return entities_dict, entities
def get_data_with_abstract_2(self, relevance_threshold=0.65):
data = self.mongo.get_all(order_by='id_doc')
data = [doc for doc in data]
only_text = []
ent_dict, ent_set = self.get_dandelion_entities(data)
if filter:
entities_set = set([k for k, v in ent_dict.iteritems()])
else:
entities_set = ent_set
entities = {e: i for i, e in enumerate(entities_set)}
dandelion_entities = np.zeros((len(data), len(entities_set)))
for doc in data[:]:
text = doc['text']
if 'dandelion' in doc:
abstract_matrix = []
abstract_matrix.append(text)
for e in doc['dandelion']['annotations']:
text += ' '
abstract = self.dbpedia.get_element_by_mongo_id(e['lod']['dbpedia'])
if abstract:
abstract_matrix.append(abstract['abstract']['value'])
rel = np.float64(e['confidence'])
name = e['title']
if rel > relevance_threshold:
if abstract:
text += abstract['abstract']['value']
dandelion_entities[doc['id_doc']][entities[name]] = rel
tfidf_vectorizer = TfidfVectorizer(max_df=0.8,
max_features=200000,
min_df=2,
stop_words='english',
strip_accents='unicode',
use_idf=True,
ngram_range=(1, 1),
norm='l2',
tokenizer=TextUtils.tokenize_and_stem)
try:
mat = tfidf_vectorizer.fit_transform(abstract_matrix)
# calcolo la sim tra il testo originale e gli abstract
sim_matrix = cosine_similarity(mat[0:1], mat)[0]
text = abstract_matrix[0]
for i, sim in enumerate(sim_matrix):
if 0.5 < sim < 1.0 and i != 0:
#print 'doc %s sim %s' %(doc['id_doc'], sim)
text += ' '
text += abstract_matrix[i]
except ValueError:
text = abstract_matrix[0]
only_text.append(text)
return only_text, dandelion_entities, data
def get_data_only_with_abstract(self, relevance_threshold=0.75, min_df=0.01,
gamma=0.89, filter=False):
only_text, ent, data = self.get_data_with_abstract_2(relevance_threshold)
tfidf_vectorizer = TfidfVectorizer(max_df=0.5,
max_features=200000,
min_df=min_df,
stop_words='english',
strip_accents='unicode',
use_idf=True,
ngram_range=(1, 1),
norm='l2',
tokenizer=TextUtils.tokenize_and_stem)
tfidf_matrix = tfidf_vectorizer.fit_transform(only_text)
f_score_dict = self.labels_dict(data)
params = tfidf_vectorizer.get_params()
params['original_terms'] = tfidf_matrix.shape[0]
params['gamma'] = gamma
params['relevance_threshold'] = relevance_threshold
params['classes'] = len(f_score_dict)
params['tokenizer'] = 'TextUtils.tokenize_and_stem'
return tfidf_matrix, f_score_dict, params
def get_data_with_dandelion(self, relevance_threshold=0.75, min_df=2,
gamma=0.89, filter=False):
only_text, ent, data = self.get_data_with_abstract_2(relevance_threshold)
entities_sparse = sparse.csr_matrix(ent)
tfidf_vectorizer = TfidfVectorizer(max_df=0.5,
max_features=200000,
min_df=min_df,
stop_words='english',
strip_accents='unicode',
use_idf=True,
ngram_range=(1, 1),
norm='l2',
tokenizer=TextUtils.tokenize_and_stem)
tfidf_matrix = tfidf_vectorizer.fit_transform(only_text)
print 'tfifd matrix dimension: %s x %s' %(tfidf_matrix.shape[0],
tfidf_matrix.shape[1])
print 'entities matrix dimension: %s x %s ' %(entities_sparse.shape[0],
entities_sparse.shape[1])
print 'non zero elements in entities matrix: %s' \
% len(entities_sparse.data)
'''print tfidf_matrix[tfidf_matrix > 0].mean()
print tfidf_matrix[tfidf_matrix > 0].max()
print entities_sparse[entities_sparse > 0].mean()
print entities_sparse[entities_sparse > 0].max()
print '#' * 80'''
#print 'after balancing'
tfidf_matrix = tfidf_matrix * 1
entities_sparse = entities_sparse * (1 - gamma)
#print tfidf_matrix[tfidf_matrix > 0].mean()
#print tfidf_matrix[tfidf_matrix > 0].max()
#print entities_sparse[entities_sparse > 0].mean()
#print entities_sparse[entities_sparse > 0].max()
f_score_dict = self.labels_dict(data)
params = tfidf_vectorizer.get_params()
params['dandelion_entities'] = entities_sparse.shape[1]
params['original_terms'] = tfidf_matrix.shape[0]
params['gamma'] = gamma
params['relevance_threshold'] = relevance_threshold
params['classes'] = len(f_score_dict)
params['tokenizer'] = 'TextUtils.tokenize_and_stem'
del params['dtype']
params['avg_nnz_row'] = (entities_sparse > 0).sum(1).mean()
return sparse.hstack([tfidf_matrix, entities_sparse]), f_score_dict, params
#return tfidf_matrix, f_score_dict, params
def get_data_fabio(self, gamma=0.89, rank_metric='r'):
data = self.mongo.get_all(order_by='id_doc')
data = [doc for doc in data]
only_text = [doc['text'] for doc in data]
entitySet = set()
for d in data:
if 'isa' in d:
for e in d['isa']:
entitySet.add(e['entity'])
current = np.zeros((len(data), len(entitySet)), dtype=np.float)
count = 0
invIndex = {}
countFeatures = 0
for i,d in enumerate(data):
if 'isa' in d:
for f in d['isa']:
if f['entity'] not in invIndex:
invIndex[f['entity']] = countFeatures
countFeatures += 1
current[count, invIndex[f['entity']]] = f[rank_metric]
count += 1
current = np.nan_to_num(current)
current_sparse = sparse.csr_matrix(current)
tfidf_vectorizer = TfidfVectorizer(max_df=0.5,
max_features=200000,
min_df=2,
stop_words='english',
strip_accents='unicode',
use_idf=True,
ngram_range=(1, 1),
norm='l2',
tokenizer=TextUtils.tokenize_and_stem)
tfidf_matrix = tfidf_vectorizer.fit_transform(only_text)
tfidf_matrix = tfidf_vectorizer.fit_transform(only_text)
print 'tfifd matrix dimension: %s x %s' %(tfidf_matrix.shape[0],
tfidf_matrix.shape[1])
print 'entities matrix dimension: %s x %s ' %(current_sparse.shape[0],
current_sparse.shape[1])
print 'non zero elements in entities matrix: %s' \
% len(current_sparse.data)
tfidf_matrix = tfidf_matrix * 1
entities_sparse = current_sparse * (1 - gamma)
f_score_dict = self.labels_dict(data)
params = tfidf_vectorizer.get_params()
params['dandelion_entities'] = entities_sparse.shape[1]
params['original_terms'] = tfidf_matrix.shape[0]
params['gamma'] = gamma
params['rank_metric'] = rank_metric
params['classes'] = len(f_score_dict)
params['tokenizer'] = 'TextUtils.tokenize_and_stem'
del params['dtype']
params['avg_nnz_row'] = (entities_sparse > 0).sum(1).mean()
return sparse.hstack([tfidf_matrix, entities_sparse]), f_score_dict,\
params
def get_data_only_with_entities(self, relevance_threshold=0.75, gamma=0.89, filter=False):
data = self.mongo.get_all(order_by='id_doc')
data = [doc for doc in data]
only_text = [doc['text'] for doc in data]
ent_dict, ent_set = self.get_dandelion_entities(data)
if filter:
entities_set = set([k for k, v in ent_dict.iteritems()])
else:
entities_set = ent_set
entities = {e: i for i, e in enumerate(entities_set)}
dandelion_entities = np.zeros((len(data), len(entities_set)))
for doc in data[:]:
text = doc['text']
if 'dandelion' in doc:
for e in doc['dandelion']['annotations']:
rel = np.float64(e['confidence'])
name = e['title']
if rel > relevance_threshold:
dandelion_entities[doc['id_doc']][entities[name]] = rel
entities_sparse = sparse.csr_matrix(dandelion_entities)
tfidf_vectorizer = TfidfVectorizer(max_df=0.5,
max_features=200000,
min_df=2,
stop_words='english',
strip_accents='unicode',
use_idf=True,
ngram_range=(1, 1),
norm='l2',
tokenizer=TextUtils.tokenize_and_stem)
tfidf_matrix = tfidf_vectorizer.fit_transform(only_text)
print 'tfifd matrix dimension: %s x %s' %(tfidf_matrix.shape[0],
tfidf_matrix.shape[1])
print 'entities matrix dimension: %s x %s ' %(entities_sparse.shape[0],
entities_sparse.shape[1])
print 'non zero elements in entities matrix: %s' \
% len(entities_sparse.data)
'''print tfidf_matrix[tfidf_matrix > 0].mean()
print tfidf_matrix[tfidf_matrix > 0].max()
print entities_sparse[entities_sparse > 0].mean()
print entities_sparse[entities_sparse > 0].max()
print '#' * 80'''
#print 'after balancing'
tfidf_matrix = tfidf_matrix * 1
entities_sparse = entities_sparse * (1 - gamma)
#print tfidf_matrix[tfidf_matrix > 0].mean()
#print tfidf_matrix[tfidf_matrix > 0].max()
#print entities_sparse[entities_sparse > 0].mean()
#print entities_sparse[entities_sparse > 0].max()
f_score_dict = self.labels_dict(data)
params = tfidf_vectorizer.get_params()
params['dandelion_entities'] = entities_sparse.shape[1]
params['original_terms'] = tfidf_matrix.shape[0]
params['gamma'] = gamma
params['relevance_threshold'] = relevance_threshold
params['classes'] = len(f_score_dict)
params['tokenizer'] = 'TextUtils.tokenize_and_stem'
del params['dtype']
params['avg_nnz_row'] = (entities_sparse > 0).sum(1).mean()
return sparse.hstack([tfidf_matrix, entities_sparse]), f_score_dict,\
params
def dimensionality_reduction(self):
# TODO - uning PCA or other method
pass
def labels_dict(self, data):
dict_out = {}
only_labels = [doc['label'] for doc in data]
for l in sorted(set(only_labels)):
dict_out[l] = {
'docs': [],
'fscore': ''
}
for doc in data:
dict_out[doc['label']]['docs'].append(doc['id_doc'])
return dict_out
@property
def get_data_grouped(self):
dict_out = {}
labels = self.data['labels']
docs = self.data['data']
for l in sorted(set(labels)):
dict_out[l] = {
'docs': [],
'fscore': ''
}
for i in range(len(docs)):
# dict_out[labels[i]]['docs'].append(i)
dict_out[labels[i]]['docs'].append({
'id_doc': i,
'text': self.data['data'][i],
'label': labels[i]
})
# print dict_out
return dict_out
@property
def tfidf_matrix(self):
'''
deprecated
:return:
'''
print 'dataset %s: %s documents and %s classes' % (
self.dataset_name, len(self.data['data']), len(self.data['labels']))
tfidf_vectorizer = TfidfVectorizer(max_df=0.5, max_features=200000,
min_df=2, stop_words='english',
use_idf=True,
tokenizer=tu.TextUtils.tokenize_and_stem,
ngram_range=(1, 1))
tfidf_matrix = tfidf_vectorizer.fit_transform(self.data['data'])
print tfidf_matrix.shape
return tfidf_matrix
def test_tokenize_abstract(dataset):
dp = DocumentsProcessor(dataset)
data = [d for d in dp.mongo.get_all(order_by='id_doc')]
only_text = dp.get_data_with_abstract(data)
for d in only_text[:1]:
ret = tu.TextUtils.tokenize_and_stem(d)
print len(ret)
ret = tu.TextUtils.remove_stopwords(ret)
print len(ret)
# pp.pprint(ret)
def test_dandelion_abstract():
docp = DocumentsProcessor('re0')
docp.get_data_with_dandelion()
def main():
parser = argparse.ArgumentParser(
description='Script that performs action on db')
parser.add_argument('-d',
dest='dataset',
help='Dataset name',
required=True,
choices=['re0', 're1'])
parser.add_argument('--db',
dest='db',
help='DB name',
required=False,
choices=['hc'])
parser.add_argument('--abstract', '-a',
dest='abstract',
help='specify action to perform',
required=False,
action='store_true')
parser.add_argument('--test', '-t',
dest='test',
help='specify action to perform',
required=False,
action='store_true')
args = parser.parse_args()
dataset = args.dataset
db = args.db
if args.test:
test_tokenize_abstract(dataset)
else:
rt = DocumentsProcessor(dataset)
# rt.get_data_with_abstract()
tfidf_matrix, dict_eval = rt.get_data(args.abstract)
# tfidf_matrix, dict_eval = rt.get_data()
# pp.pprint(tfidf_matrix)
# pp.pprint(dict_eval)
# pp.pprint(d[:5])
if __name__ == '__main__':
rt = DocumentsProcessor('re0')
rt.get_data_with_alchemy()