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import os, sys
import glob, itertools
import pandas as pd
WORKDIR_ROOT = os.environ.get('WORKDIR_ROOT', None)
if WORKDIR_ROOT is None or not WORKDIR_ROOT.strip():
print('please specify your working directory root in OS environment variable WORKDIR_ROOT. Exitting..."')
sys.exit(-1)
def load_langs(path):
with open(path) as fr:
langs = [l.strip() for l in fr]
return langs
def load_sentences(raw_data, split, direction):
src, tgt = direction.split('-')
src_path = f"{raw_data}/{split}.{direction}.{src}"
tgt_path = f"{raw_data}/{split}.{direction}.{tgt}"
if os.path.exists(src_path) and os.path.exists(tgt_path):
return [(src, open(src_path).read().splitlines()), (tgt, open(tgt_path).read().splitlines())]
else:
return []
def swap_direction(d):
src, tgt = d.split('-')
return f'{tgt}-{src}'
def get_all_test_data(raw_data, directions, split='test'):
test_data = [
x
for dd in directions
for d in [dd, swap_direction(dd)]
for x in load_sentences(raw_data, split, d)
]
# all_test_data = {s for _, d in test_data for s in d}
all_test_data = {}
for lang, d in test_data:
for s in d:
s = s.strip()
lgs = all_test_data.get(s, set())
lgs.add(lang)
all_test_data[s] = lgs
return all_test_data, test_data
def check_train_sentences(raw_data, direction, all_test_data, mess_up_train={}):
src, tgt = direction.split('-')
tgt_path = f"{raw_data}/train.{direction}.{tgt}"
src_path = f"{raw_data}/train.{direction}.{src}"
print(f'check training data in {raw_data}/train.{direction}')
size = 0
if not os.path.exists(tgt_path) or not os.path.exists(src_path):
return mess_up_train, size
with open(src_path) as f, open(tgt_path) as g:
for src_line, tgt_line in zip(f, g):
s = src_line.strip()
t = tgt_line.strip()
size += 1
if s in all_test_data:
langs = mess_up_train.get(s, set())
langs.add(direction)
mess_up_train[s] = langs
if t in all_test_data:
langs = mess_up_train.get(t, set())
langs.add(direction)
mess_up_train[t] = langs
return mess_up_train, size
def check_train_all(raw_data, directions, all_test_data):
mess_up_train = {}
data_sizes = {}
for direction in directions:
_, size = check_train_sentences(raw_data, direction, all_test_data, mess_up_train)
data_sizes[direction] = size
return mess_up_train, data_sizes
def count_train_in_other_set(mess_up_train):
train_in_others = [(direction, s) for s, directions in mess_up_train.items() for direction in directions]
counts = {}
for direction, s in train_in_others:
counts[direction] = counts.get(direction, 0) + 1
return counts
def train_size_if_remove_in_otherset(data_sizes, mess_up_train):
counts_in_other = count_train_in_other_set(mess_up_train)
remain_sizes = []
for direction, count in counts_in_other.items():
remain_sizes.append((direction, data_sizes[direction] - count, data_sizes[direction], count, 100 * count / data_sizes[direction] ))
return remain_sizes
def remove_messed_up_sentences(raw_data, direction, mess_up_train, mess_up_train_pairs, corrected_langs):
split = 'train'
src_lang, tgt_lang = direction.split('-')
tgt = f"{raw_data}/{split}.{direction}.{tgt_lang}"
src = f"{raw_data}/{split}.{direction}.{src_lang}"
print(f'working on {direction}: ', src, tgt)
if not os.path.exists(tgt) or not os.path.exists(src) :
return
corrected_tgt = f"{to_folder}/{split}.{direction}.{tgt_lang}"
corrected_src = f"{to_folder}/{split}.{direction}.{src_lang}"
line_num = 0
keep_num = 0
with open(src, encoding='utf8',) as fsrc, \
open(tgt, encoding='utf8',) as ftgt, \
open(corrected_src, 'w', encoding='utf8') as fsrc_corrected, \
open(corrected_tgt, 'w', encoding='utf8') as ftgt_corrected:
for s, t in zip(fsrc, ftgt):
s = s.strip()
t = t.strip()
if t not in mess_up_train \
and s not in mess_up_train \
and (s, t) not in mess_up_train_pairs \
and (t, s) not in mess_up_train_pairs:
corrected_langs.add(direction)
print(s, file=fsrc_corrected)
print(t, file=ftgt_corrected)
keep_num += 1
line_num += 1
if line_num % 1000 == 0:
print(f'completed {line_num} lines', end='\r')
return line_num, keep_num
##########
def merge_valid_test_messup(mess_up_train_valid, mess_up_train_test):
merged_mess = []
for s in set(list(mess_up_train_valid.keys()) + list(mess_up_train_test.keys())):
if not s:
continue
valid = mess_up_train_valid.get(s, set())
test = mess_up_train_test.get(s, set())
merged_mess.append((s, valid | test))
return dict(merged_mess)
#########
def check_train_pairs(raw_data, direction, all_test_data, mess_up_train={}):
src, tgt = direction.split('-')
#a hack; TODO: check the reversed directions
path1 = f"{raw_data}/train.{src}-{tgt}.{src}"
path2 = f"{raw_data}/train.{src}-{tgt}.{tgt}"
if not os.path.exists(path1) or not os.path.exists(path2) :
return
with open(path1) as f1, open(path2) as f2:
for src_line, tgt_line in zip(f1, f2):
s = src_line.strip()
t = tgt_line.strip()
if (s, t) in all_test_data or (t, s) in all_test_data:
langs = mess_up_train.get( (s, t), set())
langs.add(src)
langs.add(tgt)
mess_up_train[(s, t)] = langs
def load_pairs(raw_data, split, direction):
src, tgt = direction.split('-')
src_f = f"{raw_data}/{split}.{direction}.{src}"
tgt_f = f"{raw_data}/{split}.{direction}.{tgt}"
if tgt != 'en_XX':
src_f, tgt_f = tgt_f, src_f
if os.path.exists(src_f) and os.path.exists(tgt_f):
return list(zip(open(src_f).read().splitlines(),
open(tgt_f).read().splitlines(),
))
else:
return []
# skip_langs = ['cs_CZ', 'en_XX', 'tl_XX', 'tr_TR']
def get_messed_up_test_pairs(split, directions):
test_pairs = [
(d, load_pairs(raw_data, split, d))
for d in directions
]
# all_test_data = {s for _, d in test_data for s in d}
all_test_pairs = {}
for direction, d in test_pairs:
src, tgt = direction.split('-')
for s in d:
langs = all_test_pairs.get(s, set())
langs.add(src)
langs.add(tgt)
all_test_pairs[s] = langs
mess_up_train_pairs = {}
for direction in directions:
check_train_pairs(raw_data, direction, all_test_pairs, mess_up_train_pairs)
return all_test_pairs, mess_up_train_pairs
if __name__ == "__main__":
#######
import argparse
parser = argparse.ArgumentParser()
parser.add_argument(
'--from-folder',
required=True,
type=str)
parser.add_argument(
'--to-folder',
required=True,
type=str)
parser.add_argument(
'--directions',
default=None,
type=str)
args = parser.parse_args()
raw_data = args.from_folder
to_folder = args.to_folder
os.makedirs(to_folder, exist_ok=True)
if args.directions:
directions = args.directions.split(',')
else:
raw_files = itertools.chain(
glob.glob(f'{raw_data}/train*'),
glob.glob(f'{raw_data}/valid*'),
glob.glob(f'{raw_data}/test*'),
)
directions = [os.path.split(file_path)[-1].split('.')[1] for file_path in raw_files]
print('working on directions: ', directions)
##########
all_test_data, test_data = get_all_test_data(raw_data, directions, 'test')
print('==loaded test data==')
all_valid_data, valid_data = get_all_test_data(raw_data, directions, 'valid')
print('==loaded valid data==')
all_valid_test_data = merge_valid_test_messup(all_test_data, all_valid_data)
mess_up_train, data_sizes = check_train_all(raw_data, directions, all_valid_test_data)
print('training messing up with valid, test data:', len(mess_up_train))
data_situation = train_size_if_remove_in_otherset(data_sizes, mess_up_train)
df = pd.DataFrame(data_situation, columns=['direction', 'train_size_after_remove', 'orig_size', 'num_to_remove', 'remove_percent'])
df.sort_values('remove_percent', ascending=False)
df.to_csv(f'{raw_data}/clean_summary.tsv', sep='\t')
print(f'projected data clean summary in: {raw_data}/clean_summary.tsv')
# correct the dataset:
all_test_pairs, mess_up_test_train_pairs = get_messed_up_test_pairs('test', directions)
all_valid_pairs, mess_up_valid_train_pairs = get_messed_up_test_pairs('valid', directions)
all_messed_pairs = set(mess_up_test_train_pairs.keys()).union(set(mess_up_valid_train_pairs.keys()))
corrected_directions = set()
real_data_situation = []
for direction in directions:
org_size, new_size = remove_messed_up_sentences(raw_data, direction, mess_up_train, all_messed_pairs, corrected_directions)
if org_size == 0:
print(f"{direction} has size 0")
continue
real_data_situation.append(
(direction, new_size, org_size, org_size - new_size, (org_size - new_size) / org_size * 100)
)
print('corrected directions: ', corrected_directions)
df = pd.DataFrame(real_data_situation, columns=['direction', 'train_size_after_remove', 'orig_size', 'num_to_remove', 'remove_percent'])
df.sort_values('remove_percent', ascending=False)
df.to_csv(f'{raw_data}/actual_clean_summary.tsv', sep='\t')
print(f'actual data clean summary (which can be different from the projected one because of duplications) in: {raw_data}/actual_clean_summary.tsv')
import shutil
for direction in directions:
src_lang, tgt_lang = direction.split('-')
for split in ['train', 'valid', 'test']:
# copying valid, test and uncorrected train
if direction in corrected_directions and split == 'train':
continue
tgt = f"{raw_data}/{split}.{direction}.{tgt_lang}"
src = f"{raw_data}/{split}.{direction}.{src_lang}"
if not (os.path.exists(src) and os.path.exists(tgt)):
continue
corrected_tgt = f"{to_folder}/{split}.{direction}.{tgt_lang}"
corrected_src = f"{to_folder}/{split}.{direction}.{src_lang}"
print(f'copying {src} to {corrected_src}')
shutil.copyfile(src, corrected_src)
print(f'copying {tgt} to {corrected_tgt}')
shutil.copyfile(tgt, corrected_tgt)
print('completed') |