def eval_questions(questions, top_k=None, specific_ks=None):
k_scores = {}
bridge_k_scores = {}
comparision_k_scores = {}
for question in questions:
q_stats = get_stats_for_sample(
set([x[0] for x in question['supporting_facts']]),
sorted_title_pairs=[[par_name_to_title(x) for x in pair]
for pair in question['paragraph_pairs']],
top_k=top_k)
type_scores = bridge_k_scores if question[
'type'] == 'bridge' else comparision_k_scores
for k in q_stats:
for score_dict in [k_scores, type_scores]:
if k not in score_dict:
score_dict[k] = {
key: [val]
for key, val in q_stats[k].items()
}
else:
for key, val in q_stats[k].items():
score_dict[k][key].append(val)
for score_dict in [k_scores, bridge_k_scores, comparision_k_scores]:
for k in score_dict.keys():
score_dict[k] = {
key: np.mean(val)
for key, val in score_dict[k].items()
}
for score_dict, name in [(bridge_k_scores, 'Bridge'),
(comparision_k_scores, 'Comparison'),
(k_scores, 'Overall')]:
results = prettytable.PrettyTable(
['Top K Pairs', 'Hits', 'Perfect Questions', 'At Least One'])
for k, k_dict in score_dict.items():
results.add_row(
[k, k_dict['hits'], k_dict['perfect'], k_dict['at_least_one']])
results.sortby = 'Top K Pairs'
print(f"{name} scores:")
print(results)
print('\n**********************************************\n')
if specific_ks is not None:
for score_dict, name in [(bridge_k_scores, 'Bridge'),
(comparision_k_scores, 'Comparison'),
(k_scores, 'Overall')]:
results = prettytable.PrettyTable(
['Top K Pairs', 'Hits', 'Perfect Questions', 'At Least One'])
for k, k_dict in [(k, v) for k, v in score_dict.items()
if k in specific_ks]:
results.add_row([
k, k_dict['hits'], k_dict['perfect'],
k_dict['at_least_one']
])
print(f"{name} scores:")
print(results)
print('\n**********************************************\n')
def parname_to_text(par_name):
par_title = par_name_to_title(par_name)
par_num = int(par_name.split('_')[-1])
return documents[par_title][par_num]
def build_openqa_iterative_top_titles(out_file, questions_file, docs_file,
encodings_dir, encoder_model, k1, k2, n1,
n2, evaluate: bool,
reformulate_from_text: bool,
use_ema: bool, checkpoint: str):
print('Loading data...')
s = time.time()
with open(questions_file, 'r') as f:
questions = json.load(f)
with open(docs_file, 'r') as f:
documents = json.load(f)
print(f'Done, took {time.time()-s} seconds.')
if n1 is not None and n2 is not None:
for q in questions:
q['top_titles'] = q['top_titles'][:max(n1, n2)]
# Setup worker pool
workers = ProcessPool(16, initializer=init, initargs=[])
qid2tokenized = {}
tupled_questions = [(q['qid'], q['question']) for q in questions]
print("Tokenizing questions...")
with tqdm(total=len(tupled_questions)) as pbar:
for tok_q in tqdm(
workers.imap_unordered(tokenize_question, tupled_questions)):
qid2tokenized.update(tok_q)
pbar.update()
voc = set()
for question in qid2tokenized.values():
voc.update(question)
all_titles = list(
set([title for q in questions for title in q['top_titles']]))
def parname_to_text(par_name):
par_title = par_name_to_title(par_name)
par_num = int(par_name.split('_')[-1])
return documents[par_title][par_num]
print(f"Gathering documents...")
# Setup worker pool
workers = ProcessPool(32,
initializer=init_encoding_handler,
initargs=[encodings_dir])
title2encs = {}
title2idx2par_name = {}
with tqdm(total=len(all_titles)) as pbar:
for t2enc, t2id2p in tqdm(
workers.imap_unordered(get_title_mappings_from_saver,
all_titles)):
title2encs.update(t2enc)
title2idx2par_name.update(t2id2p)
pbar.update()
title2par_name2idxs = {}
for title, id2par in title2idx2par_name.items():
par2idxs = {}
for idx, parname in id2par.items():
if parname in par2idxs:
par2idxs[parname].append(idx)
else:
par2idxs[parname] = [idx]
title2par_name2idxs[title] = {
par: sorted(idxs)
for par, idxs in par2idxs.items()
}
print("Loading encoder...")
spec = QuestionAndParagraphsSpec(batch_size=None,
max_num_contexts=2,
max_num_question_words=None,
max_num_context_words=None)
encoder = SentenceEncoderIterativeModel(model_dir_path=encoder_model,
vocabulary=voc,
spec=spec,
loader=ResourceLoader(),
use_char_inputs=False,
use_ema=use_ema,
checkpoint=checkpoint)
print("Encoding questions...")
q_original_encodings = encoder.encode_text_questions(
[qid2tokenized[q['qid']] for q in questions],
return_search_vectors=False,
show_progress=True)
q_search_encodings = encoder.question_rep_to_search_vector(
question_encodings=q_original_encodings)
init() # for initializing the tokenizer
print("Calculating similarities...")
for idx, question in tqdm(enumerate(questions), total=len(questions)):
title2ids = {}
all_par_reps = []
total_sentences = 0
titles_offset_dict = {}
for title in question['top_titles'][:n1]:
titles_offset_dict[title] = total_sentences
rep = title2encs[title]
title2ids[title] = list(
range(total_sentences, total_sentences + len(rep)))
all_par_reps.append(rep)
total_sentences += len(rep)
id2title = {i: title for title, ids in title2ids.items() for i in ids}
all_par_reps = np.concatenate(all_par_reps, axis=0)
q_enc = q_search_encodings[idx]
top_k = simple_numpy_knn(np.expand_dims(q_enc, 0), all_par_reps,
k1 * 2)[0]
def id_to_par_name(rep_id):
return title2idx2par_name[id2title[rep_id]][
rep_id - titles_offset_dict[id2title[rep_id]]]
seen = set()
p_names = [
id_to_par_name(x) for x in top_k
if not (id_to_par_name(x) in seen or seen.add(id_to_par_name(x)))
][:k1]
iteration1_paragraphs = \
[title2encs[par_name_to_title(pname)][title2par_name2idxs[par_name_to_title(pname)][pname], :]
for pname in p_names]
if not reformulate_from_text:
reformulations = encoder.reformulate_questions(
questions_rep=np.tile(q_original_encodings[idx],
reps=(len(p_names), 1)),
paragraphs_rep=iteration1_paragraphs,
return_search_vectors=True)
else:
tok_q = tokenize(question['question']).words()
par_texts = [
tokenize(parname_to_text(pname)).words() for pname in p_names
]
reformulations = encoder.reformulate_questions_from_texts(
tokenized_questions=[tok_q for _ in range(len(par_texts))],
tokenized_pars=par_texts,
return_search_vectors=True)
title2ids = {}
all_par_reps = []
total_sentences = 0
titles_offset_dict = {}
for title in question['top_titles'][:n2]:
titles_offset_dict[title] = total_sentences
rep = title2encs[title]
title2ids[title] = list(
range(total_sentences, total_sentences + len(rep)))
all_par_reps.append(rep)
total_sentences += len(rep)
id2title = {i: title for title, ids in title2ids.items() for i in ids}
all_par_reps = np.concatenate(all_par_reps, axis=0)
top_k_second = numpy_global_knn(reformulations, all_par_reps, k2 * k1)
seen = set()
final_p_name_pairs = [
(p_names[x1], id_to_par_name(x2)) for x1, x2 in top_k_second
if not ((p_names[x1], id_to_par_name(x2)) in seen or seen.add(
(p_names[x1], id_to_par_name(x2))))
][:k2]
# important to note that in the iterative dataset the paragraphs of each question are in pairs
question['paragraph_pairs'] = final_p_name_pairs
with open(out_file, 'w') as f:
json.dump(questions, f)
if evaluate:
eval_questions(questions)
def reformulation_retrieval(encoder,
workers,
questions: List,
doc_db: DocDB,
k2: int,
n2: int,
safety_mult: int = 1):
def title_to_text(title):
return ' '.join(doc_db.get_doc_sentences(title))
tokenized_qs = [
tok_q.words()
for tok_q in workers.imap(tokenize, [q['question'] for q in questions])
]
par_texts = [
x for x in workers.imap(tokenize_and_concat,
[[title_to_text(title) for title in titles]
for q in questions
for titles in q['top_pars_titles']])
]
pnames_end_idxs = list(
itertools.accumulate([len(q['top_pars_titles']) for q in questions]))
q_with_p = list(
zip([
tokenized_qs[idx] for idx, q in enumerate(questions)
for _ in q['top_pars_titles']
], par_texts))
q_with_p = [(x, i) for i, x in enumerate(q_with_p)]
sorted_q_with_p = sorted(q_with_p,
key=lambda x: (len(x[0][1]), len(x[0][0]), x[1]),
reverse=True)
sorted_qs, sorted_ps = zip(*[x for x, _ in sorted_q_with_p])
last_long_index = max(
[i for i, x in enumerate(sorted_ps) if len(x) >= 900] + [-1])
if last_long_index != -1:
reformulations_long = encoder.reformulate_questions_from_texts(
tokenized_questions=sorted_qs[:last_long_index + 1],
tokenized_pars=sorted_ps[:last_long_index + 1],
return_search_vectors=True,
show_progress=False,
max_batch=8)
reformulations_short = encoder.reformulate_questions_from_texts(
tokenized_questions=sorted_qs[last_long_index + 1:],
tokenized_pars=sorted_ps[last_long_index + 1:],
return_search_vectors=True,
show_progress=False,
max_batch=64)
reformulations = np.concatenate(
[reformulations_long, reformulations_short], axis=0)
else:
reformulations = encoder.reformulate_questions_from_texts(
tokenized_questions=sorted_qs,
tokenized_pars=sorted_ps,
return_search_vectors=True,
show_progress=False,
max_batch=64)
reformulations = reformulations[np.argsort([i
for _, i in sorted_q_with_p])]
pnames_end_idxs = [0] + pnames_end_idxs
reformulations_per_question = [
reformulations[pnames_end_idxs[i]:pnames_end_idxs[i + 1]]
for i in range(len(questions))
]
for q_idx, question in enumerate(questions):
q_titles = question['top_titles'][:n2]
title2encs = {}
title2idx2par_name = {}
for t2enc, t2id2p in workers.imap_unordered(
get_title_mappings_from_saver, q_titles):
title2encs.update(t2enc)
title2idx2par_name.update(t2id2p)
title2par_name2idxs = {}
for title, id2par in title2idx2par_name.items():
par2idxs = {}
for idx, parname in id2par.items():
if parname in par2idxs:
par2idxs[parname].append(idx)
else:
par2idxs[parname] = [idx]
title2par_name2idxs[title] = {
par: sorted(idxs)
for par, idxs in par2idxs.items()
}
title2ids = {}
all_par_reps = []
total_sentences = 0
titles_offset_dict = {}
for title in question['top_titles'][:n2]:
titles_offset_dict[title] = total_sentences
rep = title2encs[title]
title2ids[title] = list(
range(total_sentences, total_sentences + len(rep)))
all_par_reps.append(rep)
total_sentences += len(rep)
id2title = {i: title for title, ids in title2ids.items() for i in ids}
all_par_reps = np.concatenate(all_par_reps, axis=0)
def id_to_par_name(rep_id):
return title2idx2par_name[id2title[rep_id]][
rep_id - titles_offset_dict[id2title[rep_id]]]
top_k_second = numpy_global_knn(reformulations_per_question[q_idx],
all_par_reps, k2 * safety_mult)
seen = set()
p_names = question['top_pars_titles']
final_p_name_pairs = [
(*p_names[x1], par_name_to_title(id_to_par_name(x2)))
for x1, x2 in top_k_second if not (
(*p_names[x1],
par_name_to_title(id_to_par_name(x2))) in seen or seen.add(
(*p_names[x1], par_name_to_title(id_to_par_name(x2)))))
][:k2]
# important to note that in the iterative dataset the paragraphs of each question are in pairs
question['top_pars_titles'] = final_p_name_pairs
return questions
def initial_retrieval(encoder,
workers,
questions: List,
k1: int,
n1: int,
safety_mult: int = 1):
tokenized_qs = [
tok_q.words()
for tok_q in workers.imap(tokenize, [q['question'] for q in questions])
]
q_search_encodings = encoder.encode_text_questions(
tokenized_qs, return_search_vectors=True, show_progress=False)
for q_idx, question in enumerate(questions):
q_titles = question['top_titles'][:n1]
title2encs = {}
title2idx2par_name = {}
for t2enc, t2id2p in workers.imap_unordered(
get_title_mappings_from_saver, q_titles):
title2encs.update(t2enc)
title2idx2par_name.update(t2id2p)
title2par_name2idxs = {}
for title, id2par in title2idx2par_name.items():
par2idxs = {}
for idx, parname in id2par.items():
if parname in par2idxs:
par2idxs[parname].append(idx)
else:
par2idxs[parname] = [idx]
title2par_name2idxs[title] = {
par: sorted(idxs)
for par, idxs in par2idxs.items()
}
title2ids = {}
all_par_reps = []
total_sentences = 0
titles_offset_dict = {}
for title in question['top_titles'][:n1]:
titles_offset_dict[title] = total_sentences
rep = title2encs[title]
title2ids[title] = list(
range(total_sentences, total_sentences + len(rep)))
all_par_reps.append(rep)
total_sentences += len(rep)
id2title = {i: title for title, ids in title2ids.items() for i in ids}
all_par_reps = np.concatenate(all_par_reps, axis=0)
def id_to_par_name(rep_id):
return title2idx2par_name[id2title[rep_id]][
rep_id - titles_offset_dict[id2title[rep_id]]]
q_enc = q_search_encodings[q_idx]
top_k = simple_numpy_knn(np.expand_dims(q_enc, 0), all_par_reps,
k1 * safety_mult)[0]
seen = set()
p_names = [
id_to_par_name(x) for x in top_k
if not (id_to_par_name(x) in seen or seen.add(id_to_par_name(x)))
][:k1]
question['top_pars_titles'] = [(par_name_to_title(p), )
for p in p_names]
return questions
def parname_to_text(par_name):
par_title = par_name_to_title(par_name)
par_num = int(par_name.split('_')[-1])
if docs_file is not None:
return documents[par_title][par_num]
return ' '.join(docs_db.get_doc_sentences(par_title))
def parname_to_text(par_name):
par_title = par_name_to_title(par_name)
par_num = int(par_name.split('_')[-1])
if args.docs_file is None:
return doc_db.get_doc_sentences(par_title)
return docs[par_title][par_num]
def main():
parser = argparse.ArgumentParser(
description='Full ranking evaluation on Hotpot')
parser.add_argument('model', help='model directory to evaluate')
parser.add_argument(
'output',
type=str,
help="Store the per-paragraph results in csv format in this file, "
"or the json prediction if in test mode")
parser.add_argument('-n',
'--sample_questions',
type=int,
default=None,
help="(for testing) run on a subset of questions")
parser.add_argument(
'-b',
'--batch_size',
type=int,
default=64,
help="Batch size, larger sizes can be faster but uses more memory")
parser.add_argument(
'-s',
'--step',
default=None,
help="Weights to load, can be a checkpoint step or 'latest'")
parser.add_argument('-a',
'--answer_bound',
type=int,
default=8,
help="Max answer span length")
parser.add_argument('-c',
'--corpus',
choices=[
"distractors", "gold", "hotpot_file",
"retrieval_file", "top_titles"
],
default="distractors")
parser.add_argument('-t',
'--tokens',
type=int,
default=None,
help="Max tokens per a paragraph")
parser.add_argument('--input_file', type=str, default=None)
parser.add_argument('--docs_file', type=str, default=None)
parser.add_argument('--num_workers',
type=int,
default=16,
help='Number of workers for tokenizing')
parser.add_argument('--no_ema',
action="store_true",
help="Don't use EMA weights even if they exist")
parser.add_argument('--no_sp',
action="store_true",
help="Don't predict supporting facts")
parser.add_argument('--test_mode',
action='store_true',
help="produce a prediction file, no answers given")
args = parser.parse_args()
model_dir = ModelDir(args.model)
batcher = ClusteredBatcher(args.batch_size,
multiple_contexts_len,
truncate_batches=True)
loader = ResourceLoader()
if args.corpus not in {"distractors", "gold"} and args.input_file is None:
raise ValueError(
"Must pass an input file if not using precomputed dataset")
if args.corpus in {"distractors", "gold"} and args.test_mode:
raise ValueError(
"Test mode not available in 'distractors' or 'gold' mode")
if args.corpus in {"distractors", "gold"}:
corpus = HotpotQuestions()
loader = corpus.get_resource_loader()
questions = corpus.get_dev()
question_preprocessor = HotpotTextLengthPreprocessorWithSpans(
args.tokens)
questions = [
question_preprocessor.preprocess(x) for x in questions
if (question_preprocessor.preprocess(x) is not None)
]
if args.sample_questions:
np.random.RandomState(0).shuffle(
sorted(questions, key=lambda x: x.question_id))
questions = questions[:args.sample_questions]
data = HotpotFullQADistractorsDataset(questions, batcher)
gold_idxs = set(data.gold_idxs)
if args.corpus == 'gold':
data.samples = [data.samples[i] for i in data.gold_idxs]
qid2samples = {}
qid2idx = {}
for i, sample in enumerate(data.samples):
key = sample.question_id
if key in qid2samples:
qid2samples[key].append(sample)
qid2idx[key].append(i)
else:
qid2samples[key] = [sample]
qid2idx[key] = [i]
questions = []
print("Ranking pairs...")
gold_ranks = []
for qid, samples in tqdm(qid2samples.items()):
question = " ".join(samples[0].question)
pars = [" ".join(x.paragraphs[0]) for x in samples]
ranks = get_paragraph_ranks(question, pars)
for sample, rank, idx in zip(samples, ranks, qid2idx[qid]):
questions.append(
RankedQAPair(question=sample.question,
paragraphs=sample.paragraphs,
spans=np.zeros((0, 2), dtype=np.int32),
question_id=sample.question_id,
answer=sample.answer,
rank=rank,
q_type=sample.q_type,
sentence_segments=sample.sentence_segments))
if idx in gold_idxs:
gold_ranks.append(rank + 1)
print(f"Mean rank: {np.mean(gold_ranks)}")
ranks_counter = Counter(gold_ranks)
for i in [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]:
print(f"Hits at {i}: {ranks_counter[i]}")
elif args.corpus == 'hotpot_file': # a hotpot json format input file. We rank the pairs with tf-idf
with open(args.input_file, 'r') as f:
hotpot_data = json.load(f)
if args.sample_questions:
np.random.RandomState(0).shuffle(
sorted(hotpot_data, key=lambda x: x['_id']))
hotpot_data = hotpot_data[:args.sample_questions]
title2sentences = {
context[0]: context[1]
for q in hotpot_data for context in q['context']
}
question_tok_texts = tokenize_texts(
[q['question'] for q in hotpot_data], num_workers=args.num_workers)
sentences_tok = tokenize_texts(list(title2sentences.values()),
num_workers=args.num_workers,
sentences=True)
if args.tokens is not None:
sentences_tok = [
truncate_paragraph(p, args.tokens) for p in sentences_tok
]
title2tok_sents = {
title: sentences
for title, sentences in zip(title2sentences.keys(), sentences_tok)
}
questions = []
for idx, question in enumerate(tqdm(hotpot_data,
desc='tf-idf ranking')):
q_titles = [title for title, _ in question['context']]
par_pairs = [(title1, title2) for i, title1 in enumerate(q_titles)
for title2 in q_titles[i + 1:]]
if len(par_pairs) == 0:
continue
ranks = get_paragraph_ranks(question['question'], [
' '.join(title2sentences[t1] + title2sentences[t2])
for t1, t2 in par_pairs
])
for rank, par_pair in zip(ranks, par_pairs):
sent_tok_pair = title2tok_sents[par_pair[0]] + title2tok_sents[
par_pair[1]]
sentence_segments, _ = get_segments_from_sentences_fix_sup(
sent_tok_pair, np.zeros(0))
missing_sent_idx = [[
i for i, sent in enumerate(title2tok_sents[title])
if len(sent) == 0
] for title in par_pair]
questions.append(
RankedQAPair(
question=question_tok_texts[idx],
paragraphs=[flatten_iterable(sent_tok_pair)],
spans=np.zeros((0, 2), dtype=np.int32),
question_id=question['_id'],
answer='noanswer'
if args.test_mode else question['answer'],
rank=rank,
q_type='null' if args.test_mode else question['type'],
sentence_segments=[sentence_segments],
par_titles_num_sents=[
(title,
sum(1 for sent in title2tok_sents[title]
if len(sent) > 0)) for title in par_pair
],
missing_sent_idxs=missing_sent_idx,
true_sp=[]
if args.test_mode else question['supporting_facts']))
elif args.corpus == 'retrieval_file' or args.corpus == 'top_titles':
if args.docs_file is None:
print("Using DB documents")
doc_db = DocDB(config.DOC_DB, full_docs=False)
else:
with open(args.docs_file, 'r') as f:
docs = json.load(f)
with open(args.input_file, 'r') as f:
retrieval_data = json.load(f)
if args.sample_questions:
np.random.RandomState(0).shuffle(
sorted(retrieval_data, key=lambda x: x['qid']))
retrieval_data = retrieval_data[:args.sample_questions]
def parname_to_text(par_name):
par_title = par_name_to_title(par_name)
par_num = int(par_name.split('_')[-1])
if args.docs_file is None:
return doc_db.get_doc_sentences(par_title)
return docs[par_title][par_num]
if args.corpus == 'top_titles':
print("Top TF-IDF!")
for q in retrieval_data:
top_titles = q['top_titles'][:10]
q['paragraph_pairs'] = [(title1 + '_0', title2 + '_0')
for i, title1 in enumerate(top_titles)
for title2 in top_titles[i + 1:]]
question_tok_texts = tokenize_texts(
[q['question'] for q in retrieval_data],
num_workers=args.num_workers)
all_parnames = list(
set([
parname for q in retrieval_data
for pair in q['paragraph_pairs'] for parname in pair
]))
texts_tok = tokenize_texts([parname_to_text(x) for x in all_parnames],
num_workers=args.num_workers,
sentences=True)
if args.tokens is not None:
texts_tok = [truncate_paragraph(p, args.tokens) for p in texts_tok]
parname2tok_text = {
parname: text
for parname, text in zip(all_parnames, texts_tok)
}
questions = []
for idx, question in enumerate(retrieval_data):
for rank, par_pair in enumerate(question['paragraph_pairs']):
tok_pair = parname2tok_text[par_pair[0]] + parname2tok_text[
par_pair[1]]
sentence_segments, _ = get_segments_from_sentences_fix_sup(
tok_pair, np.zeros(0))
missing_sent_idx = [[
i for i, sent in enumerate(parname2tok_text[parname])
if len(sent) == 0
] for parname in par_pair]
questions.append(
RankedQAPair(
question=question_tok_texts[idx],
paragraphs=[flatten_iterable(tok_pair)],
spans=np.zeros((0, 2), dtype=np.int32),
question_id=question['qid'],
answer='noanswer'
if args.test_mode else question['answers'][0],
rank=rank,
q_type='null' if args.test_mode else question['type'],
sentence_segments=[sentence_segments],
par_titles_num_sents=[
(par_name_to_title(parname),
sum(1 for sent in parname2tok_text[parname]
if len(sent) > 0)) for parname in par_pair
],
missing_sent_idxs=missing_sent_idx,
true_sp=[]
if args.test_mode else question['supporting_facts']))
else:
raise NotImplementedError()
data = DummyDataset(questions, batcher)
evaluators = [
RecordHotpotQAPrediction(args.answer_bound,
True,
sp_prediction=not args.no_sp)
]
if args.step is not None:
if args.step == "latest":
checkpoint = model_dir.get_latest_checkpoint()
else:
checkpoint = model_dir.get_checkpoint(int(args.step))
else:
checkpoint = model_dir.get_best_weights()
if checkpoint is not None:
print("Using best weights")
else:
print("Using latest checkpoint")
checkpoint = model_dir.get_latest_checkpoint()
model = model_dir.get_model()
evaluation = trainer.test(model, evaluators, {args.corpus: data}, loader,
checkpoint, not args.no_ema, 10)[args.corpus]
print("Saving result")
output_file = args.output
df = pd.DataFrame(evaluation.per_sample)
df.sort_values(["question_id", "rank"], inplace=True, ascending=True)
group_by = ["question_id"]
def get_ranked_scores(score_name):
filtered_df = df[df.type == 'comparison'] if "Cp" in score_name else \
df[df.type == 'bridge'] if "Br" in score_name else df
target_prefix = 'joint' if 'joint' in score_name else 'sp' if 'sp' in score_name else 'text'
target_score = f"{target_prefix}_{'em' if 'EM' in score_name else 'f1'}"
return compute_ranked_scores_with_yes_no(
filtered_df,
span_q_col="span_question_scores",
yes_no_q_col="yes_no_question_scores",
yes_no_scores_col="yes_no_confidence_scores",
span_scores_col="predicted_score",
span_target_score=target_score,
group_cols=group_by)
if not args.test_mode:
score_names = ["EM", "F1", "Br EM", "Br F1", "Cp EM", "Cp F1"]
if not args.no_sp:
score_names.extend([
f"{prefix} {name}" for prefix in ['sp', 'joint']
for name in score_names
])
table = [["N Paragraphs"] + score_names]
scores = [get_ranked_scores(score_name) for score_name in score_names]
table += list([str(i + 1), *["%.4f" % x for x in score_vals]]
for i, score_vals in enumerate(zip(*scores)))
print_table(table)
df.to_csv(output_file, index=False)
else:
df_to_pred(df, output_file)
def iterative_retrieval(encoder, questions, q_original_encodings, q_search_encodings, workers,
parname_to_text, reformulate_from_text, n1, n2, k1, k2, safety_mult):
for q_idx, question in tqdm(enumerate(questions), total=len(questions), ncols=80, desc=f"{n1}-{n2}-{k1}-{k2}"):
q_titles = question['top_titles'][:max(n1, n2)]
title2encs = {}
title2idx2par_name = {}
for t2enc, t2id2p in workers.imap_unordered(get_title_mappings_from_saver, q_titles):
title2encs.update(t2enc)
title2idx2par_name.update(t2id2p)
title2par_name2idxs = {}
for title, id2par in title2idx2par_name.items():
par2idxs = {}
for idx, parname in id2par.items():
if parname in par2idxs:
par2idxs[parname].append(idx)
else:
par2idxs[parname] = [idx]
title2par_name2idxs[title] = {par: sorted(idxs) for par, idxs in par2idxs.items()}
title2ids = {}
all_par_reps = []
total_sentences = 0
titles_offset_dict = {}
for title in question['top_titles'][:n1]:
titles_offset_dict[title] = total_sentences
rep = title2encs[title]
title2ids[title] = list(range(total_sentences, total_sentences + len(rep)))
all_par_reps.append(rep)
total_sentences += len(rep)
id2title = {i: title for title, ids in title2ids.items() for i in ids}
all_par_reps = np.concatenate(all_par_reps, axis=0)
def id_to_par_name(rep_id):
return title2idx2par_name[id2title[rep_id]][rep_id - titles_offset_dict[id2title[rep_id]]]
q_enc = q_search_encodings[q_idx]
top_k = simple_numpy_knn(np.expand_dims(q_enc, 0), all_par_reps, k1 * safety_mult)[0]
seen = set()
p_names = [id_to_par_name(x)
for x in top_k if not (id_to_par_name(x) in seen or seen.add(id_to_par_name(x)))][:k1]
iteration1_paragraphs = \
[title2encs[par_name_to_title(pname)][title2par_name2idxs[par_name_to_title(pname)][pname], :]
for pname in p_names]
if not reformulate_from_text:
reformulations = encoder.reformulate_questions(questions_rep=np.tile(q_original_encodings[q_idx],
reps=(len(p_names), 1)),
paragraphs_rep=iteration1_paragraphs,
return_search_vectors=True)
else:
tok_q = tokenize(question['question']).words()
par_texts = [tokenize(parname_to_text(pname)).words() for pname in p_names]
reformulations = encoder.reformulate_questions_from_texts(
tokenized_questions=[tok_q for _ in range(len(par_texts))],
tokenized_pars=par_texts,
return_search_vectors=True
)
title2ids = {}
all_par_reps = []
total_sentences = 0
titles_offset_dict = {}
for title in question['top_titles'][:n2]:
titles_offset_dict[title] = total_sentences
rep = title2encs[title]
title2ids[title] = list(range(total_sentences, total_sentences + len(rep)))
all_par_reps.append(rep)
total_sentences += len(rep)
id2title = {i: title for title, ids in title2ids.items() for i in ids}
all_par_reps = np.concatenate(all_par_reps, axis=0)
top_k_second = numpy_global_knn(reformulations, all_par_reps, k2 * safety_mult)
seen = set()
final_p_name_pairs = [(p_names[x1], id_to_par_name(x2))
for x1, x2 in top_k_second
if not ((p_names[x1], id_to_par_name(x2)) in seen
or seen.add((p_names[x1], id_to_par_name(x2))))][:k2]
# important to note that in the iterative dataset the paragraphs of each question are in pairs
question['paragraph_pairs'] = final_p_name_pairs
return questions
