Solved: Help with implementing Grad-CAM at inference time

cwerner · November 12, 2018, 9:18pm

As a followup, here is the updated version:

gist.github.com

https://gist.github.com/cwerner/31273b62b461df4bc515ee19358e4401

inference_and_gradcam.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Guitar Classifier - Inference and cam\n",
    "\n",
    "rough draft, based on:  \n",
    "https://github.com/henripal/maps/blob/master/nbs/big_resnet50-interpret-gradcam.ipynb\n",

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Unfortunately I am stuck again. In the second gist I try to get grad-CAMs for all 11 classes…

However, the CAMs I get look wrong. I guess something is up with the way I store backdrop results?

gist.github.com

https://gist.github.com/cwerner/3588c1d31e6d36917ec6c5be756b9f2f

inference_and_gradcam_bad.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Guitar Classifier - Inference and cam\n",
    "\n",
    "rough draft, based on:  \n",
    "https://github.com/henripal/maps/blob/master/nbs/big_resnet50-interpret-gradcam.ipynb\n",

This file has been truncated. show original