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What is the merge mode of Bidirectional LSTM?

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Thu Nguyen
Thu Nguyen on 1 Dec 2019
Commented: Thu Nguyen on 11 Dec 2019
I'm using Bidirectional LSTM bilstmLayer from MATLAB but I cannot figure out which merge mode is used to combine the output of 2 element LSTM networks (concatenation, multiplication, average, or sum)
And is there anyway to change this mode?
Thank you!

Accepted Answer

Raunak Gupta
Raunak Gupta on 5 Dec 2019
The bilstmLayer uses concatenation mode as we can check by the number of activations generated by the layer in the output while creating a dummy network and running analyzeNetwork for it. Currently only this mode is supported for bilstmLayer.

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