mirror of
https://github.com/explosion/spaCy.git
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106 lines
3.5 KiB
Python
106 lines
3.5 KiB
Python
from __future__ import division, unicode_literals, print_function
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import spacy
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import plac
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from pathlib import Path
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from spacy_hook import get_embeddings, get_word_ids
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from spacy_hook import create_similarity_pipeline
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def train(model_dir, train_loc, dev_loc, shape, settings):
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print("Loading spaCy")
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nlp = spacy.load('en', tagger=False, parser=False, entity=False, matcher=False)
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print("Compiling network")
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model = build_model(get_embeddings(nlp.vocab), shape, settings)
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print("Processing texts...")
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train_X = get_features(list(nlp.pipe(train_texts)))
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dev_X = get_features(list(nlp.pipe(dev_texts)))
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model.fit(
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train_X,
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train_labels,
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validation_data=(dev_X, dev_labels),
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nb_epoch=settings['nr_epoch'],
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batch_size=settings['batch_size'])
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def evaluate(model_dir, dev_loc):
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nlp = spacy.load('en', path=model_dir,
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tagger=False, parser=False, entity=False, matcher=False,
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create_pipeline=create_similarity_pipeline)
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n = 0
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correct = 0
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for (text1, text2), label in zip(dev_texts, dev_labels):
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doc1 = nlp(text1)
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doc2 = nlp(text2)
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sim = doc1.similarity(doc2)
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if bool(sim >= 0.5) == label:
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correct += 1
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n += 1
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return correct, total
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def demo(model_dir):
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nlp = spacy.load('en', path=model_dir,
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tagger=False, parser=False, entity=False, matcher=False,
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create_pipeline=create_similarity_pipeline)
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doc1 = nlp(u'Worst fries ever! Greasy and horrible...')
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doc2 = nlp(u'The milkshakes are good. The fries are bad.')
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print('doc1.similarity(doc2)', doc1.similarity(doc2))
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sent1a, sent1b = doc1.sents
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print('sent1a.similarity(sent1b)', sent1a.similarity(sent1b))
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print('sent1a.similarity(doc2)', sent1a.similarity(doc2))
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print('sent1b.similarity(doc2)', sent1b.similarity(doc2))
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LABELS = {'entailment': 0, 'contradiction': 1, 'neutral': 2}
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def read_snli(loc):
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with open(loc) as file_:
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for line in file_:
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eg = json.loads(line)
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label = eg['gold_label']
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if label == '-':
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continue
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text1 = eg['sentence1']
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text2 = eg['sentence2']
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yield text1, text2, LABELS[label]
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@plac.annotations(
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mode=("Mode to execute", "positional", None, str, ["train", "evaluate", "demo"]),
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model_dir=("Path to spaCy model directory", "positional", None, Path),
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train_loc=("Path to training data", "positional", None, Path),
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dev_loc=("Path to development data", "positional", None, Path),
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max_length=("Length to truncate sentences", "option", "L", int),
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nr_hidden=("Number of hidden units", "option", "H", int),
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dropout=("Dropout level", "option", "d", float),
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learn_rate=("Learning rate", "option", "e", float),
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batch_size=("Batch size for neural network training", "option", "b", float),
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nr_epoch=("Number of training epochs", "option", "i", float)
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)
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def main(mode, model_dir, train_loc, dev_loc,
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max_length=100,
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nr_hidden=100,
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dropout=0.2,
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learn_rate=0.001,
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batch_size=100,
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nr_epoch=5):
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shape = (max_length, nr_hidden, 3)
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settings = {
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'lr': learn_rate,
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'dropout': dropout,
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'batch_size': batch_size,
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'nr_epoch': nr_epoch
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}
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if mode == 'train':
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train(model_dir, train_loc, dev_loc, shape, settings)
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elif mode == 'evaluate':
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evaluate(model_dir, dev_loc)
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else:
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demo(model_dir)
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if __name__ == '__main__':
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plac.call(main)
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