Grad_CAM for time series I am new to deep learning and trying to build a Grad-cam from time series data. Shape of my input sample  is (188,1), its an ECG signal and I have a cnn-1D model for classification. Keras provides function  Grad-cam for images(2D). I am trying to convert this function for 1D time-series data. Could anyone please help me how to do it. Thank you in anticipation.
check out the following paper. It purposes a 2 stage network and then used the output of the first stage to do grad CAM.
https://ieeexplore.ieee.org/abstract/document/8970899/