/
glue_utils.py
368 lines (331 loc) · 14.7 KB
/
glue_utils.py
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from __future__ import absolute_import, division, print_function
import csv
import logging
import os
import random
import sys
from io import open
# from nltk.tokenize import word_tokenize
from transformers.models.bart.modeling_bart import shift_tokens_right
from transformers import AutoTokenizer,BartTokenizer
import pickle
logger = logging.getLogger(__name__)
import numpy as np
import torch
import pandas as pd
import ast
import spacy
import torch.nn.functional as F
class InputExample():
def __init__(self,d_tokens,targets,label = None,fil = None):
self.d_tokens = d_tokens
self.t_tokens = targets
self.label = label
self.fil = fil
class SentGloveFeatures(object):
def __init__(self,tokens,embeddings,input_mask,label,domain):
self.text_a = tokens
self.input_mask = input_mask
self.label = label
self.domain = domain
self.embeddings = embeddings
class InputFeatures(object):
"""A single set of features of data."""
def __init__(self, input_ids, input_mask, segment_ids, label):
self.input_ids = input_ids
self.input_mask = input_mask
self.segment_ids = segment_ids
self.label = label
class DataLoader__(object):
"""Base class for data converters for sequence classification data sets."""
def get_train_examples(self, data_dirs):
"""Gets a collection of `InputExample`s for the train set."""
raise NotImplementedError()
def get_dev_examples(self, data_dirs):
"""Gets a collection of `InputExample`s for the dev set."""
raise NotImplementedError()
def get_test_examples(self, data_dirs):
"""Gets a collection of `InputExample`s for the test set."""
raise NotImplementedError()
def get_labels(self):
"""Gets the list of labels for this data set."""
raise NotImplementedError()
class StanceLoader(DataLoader__):
def get_train_examples(self, data_dirs):
return self._create_examples(data_dirs=data_dirs, set_type='train')
def get_dev_examples(self, data_dirs,task):
return self._create_examples(data_dirs=data_dirs, set_type='dev',task=task)
def get_test_examples(self, data_dirs,task):
return self._create_examples(data_dirs=data_dirs, set_type='test',task=task)
# def _create_examples(self, data_dirs, set_type, genre='Reviews'):
# input_examples = []
# if genre == 'Reviews':
# data_dir = os.path.join(data_dirs,'new_'+set_type+'.csv')
# data = pd.read_csv(data_dir)
# text = data['text']
# summary = data['summary']
# for id,d in enumerate(zip(text,summary)):
# t0,l = d
# t = ''
# targets = l.split(';')
# for u in targets[:-1]:
# target, sent = u.split(',')
# t+='<t_b> '+target + ' <t_e> '
# t+=sent+' <t_s> '
# input_examples.append(InputExample(t0,t))
# return input_examples
def _create_examples(self, data_dirs, set_type,task='all'):
input_examples = []
# tag2tagid = {'support': 0, 'oppose': 1, 'neutral': 2}
if set_type=='train':
data_dir = os.path.join(data_dirs,'vast_'+set_type+'.csv')
else:
if task == 'all':
data_dir = os.path.join(data_dirs,'vast_'+set_type+'.csv')
else:
data_dir = os.path.join(data_dirs,'vast_'+task+'_'+set_type+'.csv')
data = pd.read_csv(data_dir)
text = data['post']
summary = data['topic']
label = data['label']
# filter = data['Sarc']
a = 0
for i,d in enumerate(zip(text,summary,label)):
# t0,l,lab,f = d
t0,l,lab = d
l = ast.literal_eval(l)
target = ' '.join(u for u in l)
# input_examples.append(InputExample(t0,target,int(lab),fil = int(f)))
input_examples.append(InputExample(t0,target,int(lab)))
return input_examples
def statistics():
data_dir = 'sentiment_lexicon_all.csv'
data = pd.read_csv(data_dir)
pos_set = set()
neg_set = set()
words = data['words']
sentiment = data['sentiment']
for i,u in enumerate(zip(words,sentiment)):
if u[1] == 1:
pos_set.add(u[0])
else: neg_set.add(u[0])
nlp = spacy.load("en_core_web_sm")
data_dir1 = 'VAST/vast_test.csv'
data = pd.read_csv(data_dir1)
text = data['post']
labels = data['label']
matrix = np.zeros((3,3))
positive,negative,neutral = 0,0,0
sent_label = []
for i,content in enumerate(zip(text,labels)):
t,l = content
p,n = 0,0
s = nlp(t)
tokens = [str(s[i]) for i in range(len(s)-1)]
sent = -1
for tok in tokens:
if tok in pos_set:
p+=1
elif tok in neg_set:
n+=1
if p>n:
positive+=1
sent = 1
elif p<n:
negative+=1
sent = 0
else:
neutral+=1
sent = 2
matrix[sent,l]+=1
sent_label.append(sent*3+l)
data['sent'] = sent_label
input_examples = []
text = data['post']
summary = data['topic']
label = data['label']
filter = data['sent']
for i,d in enumerate(zip(text,summary,label,filter)):
t0,l,lab,f = d
l = ast.literal_eval(l)
target = ' '.join(u for u in l)
input_examples.append(InputExample(t0,target,int(lab),fil = int(f)))
return input_examples
# print(matrix)
# print(sent_label)
def _truncate_seq_pair(tokens_a, tokens_b, max_length):
"""Truncates a sequence pair in place to the maximum length."""
# This is a simple heuristic which will always truncate the longer sequence
# one token at a time. This makes more sense than truncating an equal percent
# of tokens from each, since if one sequence is very short then each token
# that's truncated likely contains more information than a longer sequence.
while True:
total_length = len(tokens_a) + len(tokens_b)
if total_length <= max_length:
break
tokens_a.pop()
def tokenizer_up(tokenizer):
mapping = {
'b': '<t_b>',
'e': '<t_e>',
'ts':'<t_s>'
}
# cur_num_tokens = tokenizer.vocab_size
tokens_to_add = sorted(list(mapping.values()), key=lambda x:len(x), reverse=True)
unique_no_split_tokens = tokenizer.unique_no_split_tokens
sorted_add_tokens = sorted(list(tokens_to_add), key=lambda x:len(x), reverse=True)
# for tok in sorted_add_tokens:
# print(self.tokenizer.convert_tokens_to_ids([tok])[0])
# assert self.tokenizer.convert_tokens_to_ids([tok])[0]==self.tokenizer.unk_token_id
tokenizer.unique_no_split_tokens = unique_no_split_tokens + sorted_add_tokens
tokenizer.add_tokens(sorted_add_tokens)
return tokenizer
def convert_examples_to_features(examples, max_seq_length,
tokenizer,
cls_token_at_end=False, pad_on_left=False,
cls_token='[CLS]', sep_token='[SEP]', pad_token=0,
sequence_a_segment_id=0, sequence_b_segment_id=1,
cls_token_segment_id=1, pad_token_segment_id=0,
mask_padding_with_zero=True):
""" Loads a data file into a list of `InputBatch`s
`cls_token_at_end` define the location of the CLS token:
- False (Default, BERT/XLM pattern): [CLS] + A + [SEP] + B + [SEP]
- True (XLNet/GPT pattern): A + [SEP] + B + [SEP] + [CLS]
`cls_token_segment_id` define the segment id associated to the CLS token (0 for BERT, 2 for XLNet)
"""
features = []
for (ex_index, example) in enumerate(examples):
if ex_index % 10000 == 0:
logger.info("Writing example %d of %d" % (ex_index, len(examples)))
tokens_a = tokenizer.tokenize(example.d_tokens)
tokens_b = None
if example.t_tokens:
tokens_b = tokenizer.tokenize(example.t_tokens)
# Modifies `tokens_a` and `tokens_b` in place so that the total
# length is less than the specified length.
# Account for [CLS], [SEP], [SEP] with "- 3"
_truncate_seq_pair(tokens_a, tokens_b, max_seq_length - 3)
else:
# Account for [CLS] and [SEP] with "- 2"
if len(tokens_a) > max_seq_length - 2:
tokens_a = tokens_a[:(max_seq_length - 2)]
# The convention in BERT is:
# (a) For sequence pairs:
# tokens: [CLS] is this jack ##son ##ville ? [SEP] no it is not . [SEP]
# type_ids: 0 0 0 0 0 0 0 0 1 1 1 1 1 1
# (b) For single sequences:
# tokens: [CLS] the dog is hairy . [SEP]
# type_ids: 0 0 0 0 0 0 0
#
# Where "type_ids" are used to indicate whether this is the first
# sequence or the second sequence. The embedding vectors for `type=0` and
# `type=1` were learned during pre-training and are added to the wordpiece
# embedding vector (and position vector). This is not *strictly* necessary
# since the [SEP] token unambiguously separates the sequences, but it makes
# it easier for the model to learn the concept of sequences.
#
# For classification tasks, the first vector (corresponding to [CLS]) is
# used as as the "sentence vector". Note that this only makes sense because
# the entire model is fine-tuned.
tokens = tokens_a + [sep_token]
segment_ids = [sequence_a_segment_id] * len(tokens)
# ms = [sequence_a_segment_id] * len(tokens)
if tokens_b:
tokens += tokens_b + [sep_token]
segment_ids += [sequence_b_segment_id] * (len(tokens_b) + 1)
# ms += [0,0,1,0,0]*int(len(tokens_b)/5)+[0]
if cls_token_at_end:
tokens = tokens + [cls_token]
segment_ids = segment_ids + [cls_token_segment_id]
# ms = ms + [cls_token_segment_id]
else:
tokens = [cls_token] + tokens
segment_ids = [cls_token_segment_id] + segment_ids
# ms = [0]+ ms
# print(len(ms))
input_ids = tokenizer.convert_tokens_to_ids(tokens)
# The mask has 1 for real tokens and 0 for padding tokens. Only real
# tokens are attended to.
input_mask = [1 if mask_padding_with_zero else 0] * len(input_ids)
# Zero-pad up to the sequence length.
padding_length = max_seq_length - len(input_ids)
if pad_on_left:
input_ids = ([pad_token] * padding_length) + input_ids
input_mask = ([0 if mask_padding_with_zero else 1] * padding_length) + input_mask
segment_ids = ([pad_token_segment_id] * padding_length) + segment_ids
else:
input_ids = input_ids + ([pad_token] * padding_length)
input_mask = input_mask + ([0 if mask_padding_with_zero else 1] * padding_length)
segment_ids = segment_ids + ([pad_token_segment_id] * padding_length)
# ms = ms + ([pad_token_segment_id] * padding_length)
assert len(input_ids) == max_seq_length
assert len(input_mask) == max_seq_length
assert len(segment_ids) == max_seq_length
features.append(
InputFeatures(input_ids=input_ids,
input_mask=input_mask,
segment_ids=segment_ids,
label=example.label,
))
return features
class BartOTSAPipe():
def __init__(self, tokenizer=None, max_length=128, gene_max_length = 128):
# super(BartOTSAPipe, self).__init__()
self.max_length = max_length
self.gene_max_length = gene_max_length
self.tokenizer = tokenizer
# for tok in sorted_add_tokens:
# print(self.tokenizer.convert_tokens_to_ids([tok])[0])
# assert self.tokenizer.convert_tokens_to_ids([tok])[0]==self.tokenizer.unk_token_id
def encode_sentences1(self, data, pad_to_max_length=True, ignore_pad_token_for_loss= True, return_tensors="pt"):
input = self.tokenizer(
list(data['text']),
max_length=self.max_length,
padding="max_length" if pad_to_max_length else None,
truncation=True,
return_tensors=return_tensors,
add_prefix_space = True
)
# Setup the tokenizer for targets
labels = self.tokenizer(list(data['golden_text']), max_length=self.gene_max_length, padding="max_length", truncation=True)
input["labels"] = labels["input_ids"]
decoder_input_ids = shift_tokens_right(torch.tensor(labels["input_ids"]),self.tokenizer.pad_token_id )
# Shift the target ids to the right
# shifted_target_ids = shift_tokens_right(encoded_dict['input_ids'], tokenizer.pad_token_id)
if ignore_pad_token_for_loss:
labels["input_ids"] = [
[(l if l != self.tokenizer.pad_token_id else -100) for l in label] for label in labels["input_ids"]
]
encodings = {
'input_ids': input['input_ids'],
'attention_mask': input['attention_mask'],
'decoder_input_ids': decoder_input_ids,
'labels': labels["input_ids"],
}
return encodings
def encode_sentences(self, source,target, pad_to_max_length=True, ignore_pad_token_for_loss= True, return_tensors="pt"):
input = self.tokenizer(
(source),
max_length=self.max_length,
padding="max_length" if pad_to_max_length else None,
truncation=True,
return_tensors=return_tensors,
# add_prefix_space = True
)
# Setup the tokenizer for targets
labels = self.tokenizer(target, max_length=self.gene_max_length, padding="max_length", truncation=True)
input["labels"] = labels["input_ids"]
decoder_input_ids = shift_tokens_right(torch.tensor(labels["input_ids"]),self.tokenizer.pad_token_id )
# Shift the target ids to the right
# shifted_target_ids = shift_tokens_right(encoded_dict['input_ids'], tokenizer.pad_token_id)
if ignore_pad_token_for_loss:
labels["input_ids"] = [
[(l if l != self.tokenizer.pad_token_id else -100) for l in label] for label in labels["input_ids"]
]
encodings = {
'input_ids': input['input_ids'],
'attention_mask': input['attention_mask'],
'decoder_input_ids': decoder_input_ids,
'labels': labels["input_ids"],
}
return encodings