How to import Keras layers for regression?

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Renita Raidoo 2020-6-19

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https://ww2.mathworks.cn/matlabcentral/answers/551140-how-to-import-keras-layers-for-regression

回答： Sivylla Paraskevopoulou 2022-5-9

Hi all. I am playing around with importing Keras layers for an LSTM problem but can't seem to get even a basic fully connected single layer network to work. Even though my Keras model just has a basic input layer, Matlab reads it as an "ImageInputLayer". This is for a simple sequence-to-sequence regression problem. I just want to feed in a 2D matrix with multiple features and a series of timesteps but it expects a 3D image tensor. Is there something wrong with the Keras model or do I need to preprocess my data differently? Thanks in advance!

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Friedrich Seiffarth 2020-8-24

Did you find a solution for your problem ? Because I am running into the same problem.

Divya Gaddipati 2020-9-1

Could you mention the error you are getting?

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Answer 1

Sivylla Paraskevopoulou 2022-5-9

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https://ww2.mathworks.cn/matlabcentral/answers/551140-how-to-import-keras-layers-for-regression#answer_959915

Since R2020b, Deep Learning Toolbox provides the featureInputLayer layer, and since R2021a you can import the TensorFlow-Keras layer Input as a featureInputLayer. For a complete list, see TensorFlow-Keras Layers Supported for Conversion into Built-In MATLAB Layers.

The importTensorFlowNetwork function tries to append an output layer to the imported network by interpreting the loss function of the TensorFlow model. If your model doesn't specify a loss function, specify the OutputLayerType name-value argument of importTensorFlowNetwork as "regression".