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fix position encoding bug #81

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fix position encoding bug #81

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4 changes: 2 additions & 2 deletions modules.py
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Original file line number Diff line number Diff line change
Expand Up @@ -283,7 +283,7 @@ def positional_encoding(inputs,

# First part of the PE function: sin and cos argument
position_enc = np.array([
[pos / np.power(10000, (i-i%2)/E) for i in range(E)]
[pos / np.power(10000, 1.0*(i-i%2)/E) for i in range(E)]
for pos in range(maxlen)])

# Second part, apply the cosine to even columns and sin to odds.
Expand All @@ -308,4 +308,4 @@ def noam_scheme(init_lr, global_step, warmup_steps=4000.):
until it reaches init_lr.
'''
step = tf.cast(global_step + 1, dtype=tf.float32)
return init_lr * warmup_steps ** 0.5 * tf.minimum(step * warmup_steps ** -1.5, step ** -0.5)
return init_lr * warmup_steps ** 0.5 * tf.minimum(step * warmup_steps ** -1.5, step ** -0.5)