Comments (3)
Hi tRosenflanz,
I think that comes from the time when I used to apply dropout to the GRUs' outputs.
Now that I don't use dropout on the GRUs' outputs, I think dividing by two doesn't do much.
(I think I didn't clean that up because it didn't cause any problem)
from retain.
Sounds good. Theoretically, I don't see why it would change the final prediction since the output layer should rebalance the predictions. However, dividing these values in half does have an effect on alpha outputs due to the combination of tanh and softmax activations (less important visits have higher value and more important ones have lower one) - in some ways that is akin to regularizing alpha layer.
from retain.
That is precisely correct.
Now that I think of it, I think I saw a long time ago a Theano neural network code by someone else, where this type of regularization (i.e. halving the embedding layer to reduce the variance) was applied. So I just left them in my code as well.
(I am not too sure because, after all, it has been over a year since I actively wrote RETAIN)
from retain.
Related Issues (8)
- Use of Biderctional LSTM HOT 1
- error: unrecognized arguments: --dropout_context 0.8 --dropout_emb 0.0 HOT 4
- Using Retain for multiclass problem HOT 2
- Feeding sequence in inverse order HOT 1
- Reason using 2 sets of attention weights ? HOT 1
- Including more features apart from diagnostic codes HOT 8
- Imbalance and noise handling HOT 2
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from retain.