def model_fn(features, mode, config, embedding_matrix, vocab_tables):
if mode == tf.estimator.ModeKeys.PREDICT:
base_words, src_words, tgt_words, inserted_words, deleted_words = features
else:
src_words, tgt_words, inserted_words, deleted_words = features
base_words = src_words
if mode != tf.estimator.ModeKeys.TRAIN:
config.put('editor.enable_dropout', False)
config.put('editor.dropout_keep', 1.0)
vocab_s2i = vocab_tables[vocab.STR_TO_INT]
vocab_i2s = vocab_tables[vocab.INT_TO_STR]
vocab.init_embeddings(embedding_matrix)
train_decoder_output, infer_decoder_output, \
gold_dec_out, gold_dec_out_len = editor.editor_train(
base_words, src_words, tgt_words, inserted_words, deleted_words, embedding_matrix, vocab_s2i,
config.editor.hidden_dim, config.editor.agenda_dim, config.editor.edit_dim,
config.editor.encoder_layers, config.editor.decoder_layers, config.editor.attention_dim,
config.editor.beam_width,
config.editor.max_sent_length, config.editor.dropout_keep, config.editor.lamb_reg,
config.editor.norm_eps, config.editor.norm_max, config.editor.kill_edit,
config.editor.draw_edit, config.editor.use_swap_memory,
config.get('editor.use_beam_decoder', False), config.get('editor.enable_dropout', False),
config.get('editor.no_insert_delete_attn', False), config.get('editor.enable_vae', True)
)
loss = optimizer.loss(train_decoder_output, gold_dec_out, gold_dec_out_len)
train_op, gradients_norm = optimizer.train(
loss, config.optim.learning_rate, config.optim.max_norm_observe_steps)
if mode == tf.estimator.ModeKeys.TRAIN:
tf.summary.scalar('grad_norm', gradients_norm)
ops = add_extra_summary(config, vocab_i2s, train_decoder_output,
src_words, tgt_words, inserted_words,
deleted_words, ['extra'])
hooks = [
get_train_extra_summary_writer(config),
get_extra_summary_logger(ops, config),
]
if config.get('logger.enable_profiler', False):
hooks.append(get_profiler_hook(config))
return tf.estimator.EstimatorSpec(mode,
train_op=train_op,
loss=loss,
training_hooks=hooks)
elif mode == tf.estimator.ModeKeys.EVAL:
ops = add_extra_summary(config, vocab_i2s, train_decoder_output,
src_words, tgt_words, inserted_words,
deleted_words, ['extra'])
return tf.estimator.EstimatorSpec(
mode,
loss=loss,
evaluation_hooks=[get_extra_summary_logger(ops, config)],
eval_metric_ops={'bleu': tf_metrics.streaming_mean(ops[ES_BLEU])})
elif mode == tf.estimator.ModeKeys.PREDICT:
lengths = decoder.seq_length(infer_decoder_output)
tokens = decoder.str_tokens(infer_decoder_output, vocab_i2s)
preds = {
'str_tokens': tokens,
'sample_id': decoder.sample_id(infer_decoder_output),
'lengths': lengths,
'joined': metrics.join_tokens(tokens, lengths),
}
return tf.estimator.EstimatorSpec(mode, predictions=preds)
def model_fn(features, mode, config, embedding_matrix, vocab_tables):
if mode == tf.estimator.ModeKeys.PREDICT:
base_words, extended_base_words, \
_, _, \
src_words, tgt_words, \
inserted_words, deleted_words, \
oov = features
output_words = extended_output_words = tgt_words
else:
base_words, extended_base_words, \
output_words, extended_output_words, \
src_words, tgt_words, \
inserted_words, deleted_words, \
oov = features
if mode != tf.estimator.ModeKeys.TRAIN:
config.put('editor.enable_dropout', False)
config.put('editor.dropout_keep', 1.0)
vocab_i2s = vocab_tables[vocab.INT_TO_STR]
vocab.init_embeddings(embedding_matrix)
vocab_size = len(vocab_tables[vocab.RAW_WORD2ID])
train_decoder_output, infer_decoder_output, \
gold_dec_out, gold_dec_out_len = editor.editor_train(
base_words, extended_base_words, output_words, extended_output_words,
src_words, tgt_words, inserted_words, deleted_words, oov,
vocab_size,
config.editor.hidden_dim, config.editor.agenda_dim, config.editor.edit_dim,
config.editor.edit_enc.micro_ev_dim, config.editor.edit_enc.num_heads,
config.editor.encoder_layers, config.editor.decoder_layers, config.editor.attention_dim,
config.editor.beam_width,
config.editor.edit_enc.ctx_hidden_dim, config.editor.edit_enc.ctx_hidden_layer,
config.editor.edit_enc.wa_hidden_dim, config.editor.edit_enc.wa_hidden_layer,
config.editor.edit_enc.meve_hidden_dim, config.editor.edit_enc.meve_hidden_layer,
config.editor.max_sent_length, config.editor.dropout_keep, config.editor.lamb_reg,
config.editor.norm_eps, config.editor.norm_max, config.editor.kill_edit,
config.editor.draw_edit, config.editor.use_swap_memory,
config.get('editor.use_beam_decoder', False), config.get('editor.enable_dropout', False),
config.get('editor.no_insert_delete_attn', False), config.get('editor.enable_vae', True)
)
loss = optimizer.loss(train_decoder_output, gold_dec_out, gold_dec_out_len)
train_op, gradients_norm = optimizer.train(
loss, config.optim.learning_rate, config.optim.max_norm_observe_steps)
tf.logging.info("Trainable variable")
for i in tf.get_collection(tf.GraphKeys.TRAINABLE_VARIABLES):
tf.logging.info(str(i))
if mode == tf.estimator.ModeKeys.TRAIN:
tf.summary.scalar('grad_norm', gradients_norm)
ops = add_extra_summary(config,
vocab_i2s,
train_decoder_output,
base_words,
output_words,
src_words,
tgt_words,
inserted_words,
deleted_words,
oov,
vocab_size,
collections=['extra'])
hooks = [
get_train_extra_summary_writer(config),
get_extra_summary_logger(ops, config),
]
if config.get('logger.enable_profiler', False):
hooks.append(get_profiler_hook(config))
return tf.estimator.EstimatorSpec(mode,
train_op=train_op,
loss=loss,
training_hooks=hooks)
elif mode == tf.estimator.ModeKeys.EVAL:
ops = add_extra_summary(config,
vocab_i2s,
train_decoder_output,
base_words,
output_words,
src_words,
tgt_words,
inserted_words,
deleted_words,
oov,
vocab_size,
collections=['extra'])
return tf.estimator.EstimatorSpec(
mode,
loss=loss,
evaluation_hooks=[get_extra_summary_logger(ops, config)],
eval_metric_ops={'bleu': tf_metrics.streaming_mean(ops[ES_BLEU])})
elif mode == tf.estimator.ModeKeys.PREDICT:
lengths = decoder.seq_length(infer_decoder_output)
tokens = decoder.str_tokens(infer_decoder_output, vocab_i2s,
vocab_size, oov)
preds = {
'str_tokens': tokens,
'sample_id': decoder.sample_id(infer_decoder_output),
'lengths': lengths,
'joined': metrics.join_tokens(tokens, lengths),
}
return tf.estimator.EstimatorSpec(mode, predictions=preds)