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Connectionist Temporal Classification Layer

version 1.0.0 (2.22 KB) by SergeyLA
CTC Loss calculations for speech recognition neural networks


Updated 27 Mar 2019

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Editor's Note: This file was selected as MATLAB Central Pick of the Week

CTC Loss calculations for speech recognition neural networks.
Developed and tested with Voxforge database.

Cite As

SergeyLA (2021). Connectionist Temporal Classification Layer (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (1)

Sanjana Sankar

When I run the code for my network, I keep getting this error.
Error using 'backwardLoss' in Layer ctcClassificationLayer. The function threw an error and could not
be executed.
I do not understand how this equation works
labelIdx = labelIdx + layer.Categories(maxIdx);
why is a categorical value getting added to a numerical index?

MATLAB Release Compatibility
Created with R2019a
Compatible with any release
Platform Compatibility
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