dp2022/squad_transform.py
2022-02-20 22:02:03 +01:00

85 lines
3.0 KiB
Python

import json
from dotenv import load_dotenv
from squad_utils import print_squad
def sort_qas_by_answer_index(squad):
for article in squad['data']:
for paragraph in article['paragraphs']:
impossible_qas = list(filter(lambda qas: qas['is_impossible'] == True, paragraph['qas']))
possible_qas = list(filter(lambda qas: qas['is_impossible'] == False, paragraph['qas']))
sorted_qas = sorted(possible_qas, key=lambda qas: qas['answers'][0]['answer_start'])
for qas in sorted_qas:
a = qas['answers'][0]
a['answer_end'] = a['answer_start'] + len(a['text'])
paragraph['qas'] = sorted_qas + impossible_qas
def transform_squad(squad):
for article in squad['data']:
for paragraph in article['paragraphs']:
add_special_chars_to_paragraph(paragraph)
def add_special_chars_to_paragraph(paragraph):
for counter, qas in enumerate(paragraph['qas']):
# Skip if impossible question
if qas["is_impossible"] == True: continue
special_char = f"[{counter}]"
if len(qas['answers']) > 1 or len(qas['answers']) == 0: continue
current = qas['answers'][0]
# Get start index
start = current['answer_start']
# Calculate end index
end = current['answer_end']
# Add special chars to context
context = paragraph['context']
paragraph['context'] = f"{context[:start]}{special_char} {context[start:end]} {special_char}{context[end:]}"
# Recalculate indexes
for q in paragraph['qas'][counter + 1:]: # Skip all answers before and current one
if q["is_impossible"] == True: continue
other = q['answers'][0]
if other['answer_start'] >= current['answer_start'] and other['answer_end'] <= current["answer_end"]: # Other is being enclosed by current
other['answer_start'] += len(special_char) +1
other['answer_end'] += 2*len(special_char) +2
elif other['answer_start'] < current['answer_end']: # Other is enclosing the current one
other['answer_start'] += len(special_char) +1
other['answer_end'] += len(special_char) +1
else: # Other is after current
other['answer_start'] += 2*len(special_char) +2
other['answer_end'] += 2*len(special_char) +2
# Fix indexes in current answer
other = paragraph['qas'][counter]['answers'][0]
if other == current: # Other answer is the one im working on
other['answer_start'] += len(special_char) +1
other['answer_end'] += len(special_char) +1
if __name__ == "__main__":
load_dotenv()
with open("./data/squad-v2-dev-small.json", "r") as f:
squad = json.load(f)
sort_qas_by_answer_index(squad)
transform_squad(squad)
print_squad(squad)
with open("./data/squad-v2-dev-small-translated.json", "w") as f:
json.dump(squad, f, indent=2)