def __init__(self, samples, parser: ReversibleField = None, parse=True):
super().__init__('self-bleu')
if parse:
samples = parser.reverse(samples)
ref_tokens = [parser.tokenize(r) for r in samples]
from fast_bleu import SelfBLEU as FSBLEU
w = {i: np.ones(i) / i for i in range(2, 6)}
self.bleu = FSBLEU(ref_tokens, w)
print('self-bleu instance created!')
def __init__(self, references, parser: ReversibleField = None, parse=True):
super().__init__('bleu')
if parse:
references = parser.reverse(references)
ref_tokens = [parser.tokenize(r) for r in references]
self.parser = parser
from fast_bleu import BLEU as FBLEU
w = {i: np.ones(i) / i for i in range(2, 6)}
self.bleu = FBLEU(ref_tokens, w)
print('bleu instance created!')
def preprocess_real_dataset(dataset_name):
train_filename, valid_filename, test_filename =\
"{}_train.txt".format(dataset_name),\
"{}_valid.txt".format(dataset_name),\
"{}_test.txt".format(dataset_name)
import random
random.seed(42)
print(train_filename, valid_filename, test_filename)
TEXT = ReversibleField(
tokenize="revtok",
tokenizer_language="en",
init_token='<sos>',
eos_token='<eos>',
pad_token='<pad>',
use_vocab=True,
lower=True,
batch_first=True,
# fix_length=MAX_LENGTH
)
trn = LanguageModelingDataset(path=DATASET_PATH + train_filename,
newline_eos=False,
text_field=TEXT)
vld = LanguageModelingDataset(path=DATASET_PATH + valid_filename,
newline_eos=False,
text_field=TEXT)
tst = LanguageModelingDataset(path=DATASET_PATH + test_filename,
newline_eos=False,
text_field=TEXT)
TEXT.build_vocab(trn, vld, tst)
TEXT.max_length = max(max([len(t.text)
for t in trn]), max([len(t.text) for t in vld]),
max([len(t.text) for t in tst])) + 1
dump(obj=TEXT,
file_name=dataset_name + "_vocab.pkl",
parent_path=DATASET_PATH)
print(
'vocab size: {}\ntrain size: {}\n valid size: {}\n test size: {}\n max length: {}'
.format(len(TEXT.vocab), len(trn), len(vld), len(tst),
TEXT.max_length))
return trn, vld, tst, TEXT
def __init__(self, samples, parser: ReversibleField = None, parse=True):
super().__init__('NgramProp')
if parse:
samples = parser.reverse(samples)
ref_tokens = [parser.tokenize(r) for r in samples]
scores = []
lens = []
for sample in ref_tokens:
if len(sample) == 0:
continue
smaple_score = float(len(Counter(sample))) / float(len(sample))
scores.append(smaple_score)
lens.append(len(sample))
self.score = float(np.mean(scores))
self.len = float(np.mean(lens))
def __init__(self,
samples,
min_n=2,
max_n=5,
parser: ReversibleField = None,
parse=True):
super().__init__()
from fast_bleu import SelfBLEU as FSBLEU
assert max_n >= min_n
assert min_n >= 1
if parse:
samples = parser.reverse(samples)
ref_tokens = [parser.tokenize(r) for r in samples]
w = {i: np.ones(i) / i for i in range(min_n, max_n + 1)}
self.selfbleu = FSBLEU(ref_tokens, w, verbose=True)
print('LOG: SelfBLEU init done!')
def __init__(self,
references,
min_n=2,
max_n=5,
parser: ReversibleField = None,
parse=True):
super().__init__('jaccard')
print('multiset distances init upto {}!'.format(max_n))
if parse:
references = parser.reverse(references)
references = [parser.tokenize(r) for r in references]
self.references = references
self.max_n = max_n
self.min_n = min_n
self.parser = parser
assert self.max_n >= self.min_n
assert self.min_n >= 1
self.ref_ngrams = self._get_ngrams(references)
print('jaccard instance created!')
def __init__(self,
ref_samples,
hyp_samples,
min_n=2,
max_n=5,
parser: ReversibleField = None,
parse=True):
super().__init__()
from fast_bleu import BLEU as FBLEU
assert max_n >= min_n
assert min_n >= 1
if parse:
ref_samples = parser.reverse(ref_samples)
hyp_samples = parser.reverse(hyp_samples)
self.ref_tokens = [parser.tokenize(r) for r in ref_samples]
self.hyp_tokens = [parser.tokenize(r) for r in hyp_samples]
self.parser = parser
w = {i: np.ones(i) / i for i in range(min_n, max_n + 1)}
self.bleu = FBLEU(self.hyp_tokens, w, verbose=True)
print('LOG: ReverseBLEU init done!')
def construct_field(
field_type,
batch_first=True,
input_lower=True,
lemmatized=False,
input_include_lengths=True,
input_fix_length=None,
):
""" Construct TorchText field.
Note: the `input_<x>` fields are specifically parameters for
the `input_text` field type.
"""
if field_type == 'input_text':
if lemmatized:
tokenizer = tokenize_fct_lemmatize
else:
tokenizer = "spacy"
return ReversibleField(sequential=True,
use_vocab=True,
init_token=Constants.START_TOKEN,
eos_token=Constants.END_TOKEN,
lower=input_lower,
tokenize=tokenizer,
batch_first=batch_first,
pad_token=Constants.PAD_TOKEN,
unk_token=Constants.UNK_TOKEN,
include_lengths=input_include_lengths,
fix_length=input_fix_length,
preprocessing=gen_text_preprocessor())
elif field_type == 'numeric_label':
return LabelField(
use_vocab=False,
batch_first=batch_first,
)
elif field_type == 'bool_label':
return LabelField(use_vocab=False,
batch_first=batch_first,
preprocessing=lambda x: (x == 'True'))
else:
raise Exception('Invalid Field Type')
def preprocess_oracle_dataset():
from metrics.oracle.oracle_lstm import Oracle_LSTM
dataset_name = 'oracle'
train_filename, valid_filename, test_filename = "{}_train".format(dataset_name),\
"{}_valid".format(dataset_name),\
"{}_test".format(dataset_name)
oracle = Oracle_LSTM(num_emb=5000,
batch_size=128,
emb_dim=3200,
hidden_dim=32,
sequence_length=20)
N = 60 * 10**3
N1 = int(N * 2 / 3)
N2 = int(N * 1 / 6)
samples = oracle.generate(N)
samples = map(lambda xx: list(map(str, xx)), samples)
samples = list(map(lambda x: " ".join(x), samples))
train_samples = samples[:N1]
valid_samples = samples[N1:N1 + N2]
test_samples = samples[-N2:]
write_text(train_samples, train_filename)
write_text(valid_samples, valid_filename)
write_text(test_samples, test_filename)
import random
random.seed(42)
print(train_filename, valid_filename, test_filename)
TEXT = ReversibleField(
init_token='<sos>',
use_vocab=True,
lower=False,
batch_first=True,
)
trn = LanguageModelingDataset(path=DATASET_PATH + train_filename + '.txt',
newline_eos=False,
text_field=TEXT)
vld = LanguageModelingDataset(path=DATASET_PATH + valid_filename + '.txt',
newline_eos=False,
text_field=TEXT)
tst = LanguageModelingDataset(path=DATASET_PATH + test_filename + '.txt',
newline_eos=False,
text_field=TEXT)
TEXT.build_vocab(trn, vld, tst)
TEXT.max_length = max(max([len(t.text) for t in trn]),
max([len(t.text) for t in vld]),
max([len(t.text) for t in tst]))
dump(obj=TEXT,
file_name=dataset_name + "_vocab.pkl",
parent_path=DATASET_PATH)
print(
'vocab size: {}\ntrain size: {}\n valid size: {}\n test size: {}\n max length: {}'
.format(len(TEXT.vocab), len(trn), len(vld), len(tst),
TEXT.max_length))
return trn, vld, tst, TEXT
seed = 2019
torch.manual_seed(seed)
torch.cuda.manual_seed(seed)
def light_tokenize(sequence: str):
return sequence.split()
def action_tokenize(sequence: str):
return [sequence]
TEXT = Field(sequential=True, tokenize=light_tokenize, eos_token=END_OF_INPUT_TOK, pad_token=None)
ACTION = ReversibleField(
sequential=True, tokenize=action_tokenize, is_target=True, unk_token=None, pad_token=None)
Fields = [('text', TEXT), ('action', ACTION)]
class TDPTool(Tool):
def get_dataset(self, path: str, fields=Fields, separator=' ||| '):
logger.info('loading dataset from {}'.format(path))
tdp_dataset = TransitionDataset(path, fields=fields, separator=separator)
logger.info('successed loading dataset')
return tdp_dataset
def get_vocab(self, *dataset):
logger.info('building word vocab...')
TEXT.build_vocab(*dataset, specials=[ROOT_TOK, NULL_STACK_TOK])
logger.info('successed building word vocab')
from torchtext.data import Dataset, Field, BucketIterator, ReversibleField
from torchtext.vocab import Vectors
from torchtext.datasets import SequenceTaggingDataset
from utils.log import logger
from config import DEVICE, DEFAULT_CONFIG
def light_tokenize(sequence: str):
return [sequence]
# 普通字段
TEXT = Field(sequential=True, tokenize=light_tokenize, include_lengths=True)
# 可逆字段：可以从 wordid 映射回原来的 word
TAG = ReversibleField(sequential=True,
tokenize=light_tokenize,
is_target=True,
unk_token=None)
Fields = [('text', TEXT), ('tag', TAG)]
class TOOL(object):
# @staticmethod
def get_dataset(self, path: str, fields=Fields, separator='\t'):
logger.info('loading dataset from {}'.format(path))
st_dataset = SequenceTaggingDataset(path,
fields=fields,
separator=separator)
logger.info('successed loading dataset')
return st_dataset
repeat=False,
sort=True,
sort_key=lambda x: len(x.data))
dataset_iter_val = data.Iterator(validation_set,
batch_size=1,
device=device,
train=True,
shuffle=True,
repeat=False,
sort=False)
else:
FIELD = ReversibleField(batch_first=False,
init_token='<init>',
eos_token='<eos>',
lower=True,
include_lengths=True)
split_cnn = CNN.splits(fields=FIELD)
split_dm = DailyMail.splits(fields=FIELD)
for scnn, sdm in zip(split_cnn, split_dm):
scnn.examples.extend(sdm)
split = split_cnn
FIELD.build_vocab(split[0].src, vectors="glove.6B." + str(glove_dim) + "d")
vocab = copy.deepcopy(FIELD.vocab)
dataset_iter, dataset_iter_val, dataset_iter_test = BucketIterator.splits(
split,
from sklearn.metrics import f1_score, accuracy_score, recall_score, precision_score
from ...base.tool import Tool
from ...utils.log import logger
from .config import DEVICE, DEFAULT_CONFIG
seed = 2019
torch.manual_seed(seed)
torch.cuda.manual_seed(seed)
def light_tokenize(sequence: str):
return [x for x in sequence.strip()]
TEXT = ReversibleField(sequential=True, tokenize=light_tokenize)
class LMTool(Tool):
def tokenize(self, sequence: str):
return [x for x in sequence.strip()]
def get_dataset(self, path: str, field=TEXT, newline_eos=False):
logger.info('loading dataset from {}'.format(path))
lm_dataset = LanguageModelingDataset(path, text_field=field, newline_eos=newline_eos)
logger.info('successed loading dataset')
return lm_dataset
def get_vocab(self, *dataset):
logger.info('building word vocab...')
TEXT.build_vocab(*dataset)
