with strategy.scope():
mt = MusicTransformer(embedding_dim=256,
vocab_size=par.vocab_size,
num_layer=6,
max_seq=max_seq,
dropout=0.2,
debug=False,
loader_path=load_path)
mt.compile(optimizer=opt, loss=callback.transformer_dist_train_loss)
# Train Start
for e in range(epochs):
mt.reset_metrics()
for b in range(len(dataset.files) // batch_size):
try:
batch_x, batch_y = dataset.seq2seq_batch(batch_size, max_seq)
except:
continue
result_metrics = mt.train_on_batch(batch_x, batch_y)
if b % 100 == 0:
eval_x, eval_y = dataset.seq2seq_batch(batch_size, max_seq,
'eval')
eval_result_metrics = mt.evaluate(eval_x, eval_y)
mt.save(save_path)
print('\n====================================================')
print('Epoch/Batch: {}/{}'.format(e, b))
print('Train >>>> Loss: {:6.6}, Accuracy: {}'.format(
result_metrics[0], result_metrics[1]))
print('Eval >>>> Loss: {:6.6}, Accuracy: {}'.format(
eval_result_metrics[0], eval_result_metrics[1]))
eval_summary_writer = tf.summary.create_file_writer(eval_log_dir)
# Train Start
idx = 0
for e in range(epochs):
mt.reset_metrics()
for b in range(len(dataset.files) // batch_size):
try:
batch_x, batch_y = dataset.seq2seq_batch(batch_size, max_seq)
except:
continue
result_metrics = mt.train_on_batch(batch_x, batch_y)
if b % 100 == 0:
eval_x, eval_y = dataset.seq2seq_batch(batch_size, max_seq, 'eval')
eval_result_metrics, weights = mt.evaluate(eval_x, eval_y)
mt.save(save_path)
with train_summary_writer.as_default():
tf.summary.scalar('loss', result_metrics[0], step=idx)
tf.summary.scalar('accuracy', result_metrics[1], step=idx)
for i, weight in enumerate(weights):
with tf.name_scope("layer_%d" % i):
with tf.name_scope("_w0"):
utils.attention_image_summary(weight[0])
with tf.name_scope("_w1"):
utils.attention_image_summary(weight[1])
with eval_summary_writer.as_default():
tf.summary.scalar('loss', eval_result_metrics[0], step=idx)
tf.summary.scalar('accuracy', eval_result_metrics[1], step=idx)
idx += 1