{
  "id": 99753,
  "title": "What is your CNN looking at? GradCAM in fastai",
  "url": "/competitions/aptos2019-blindness-detection/discussion/99753",
  "author_name": "",
  "post_date": "2019-07-13T21:02:41.686345700Z",
  "votes": 6,
  "comment_count": 2,
  "views": 0,
  "content": "<p>I wrote a kernel on GradCAM for the fastai library. Some users may know that GradCAM is already implemented, but only when plotting the most confused images. I walk through how GradCAM works and implementation, including useful tools like pytorch/fastai hooks. I create a general fastai function that can return the GradCAM map given an index of an image in the dataset. Check it all out over <a href=\"https://www.kaggle.com/tanlikesmath/what-is-your-cnn-looking-at-aptos\">here!</a></p>\n\n<p>I know @ratthachat wrote a nice kernel on GradCAM already for Keras, but I had been planning to write this kernel for about a week now, and plus I thought it would useful to check it out using the fastai library instead. I hope this kernel is helpful! </p>",
  "messages": [
    {
      "id": "574455",
      "postDate": "07/13/2019 21:02:41",
      "content": "<p>I wrote a kernel on GradCAM for the fastai library. Some users may know that GradCAM is already implemented, but only when plotting the most confused images. I walk through how GradCAM works and implementation, including useful tools like pytorch/fastai hooks. I create a general fastai function that can return the GradCAM map given an index of an image in the dataset. Check it all out over <a href=\"https://www.kaggle.com/tanlikesmath/what-is-your-cnn-looking-at-aptos\">here!</a></p>\n\n<p>I know @ratthachat wrote a nice kernel on GradCAM already for Keras, but I had been planning to write this kernel for about a week now, and plus I thought it would useful to check it out using the fastai library instead. I hope this kernel is helpful! </p>",
      "rawMarkdown": "I wrote a kernel on GradCAM for the fastai library. Some users may know that GradCAM is already implemented, but only when plotting the most confused images. I walk through how GradCAM works and implementation, including useful tools like pytorch/fastai hooks. I create a general fastai function that can return the GradCAM map given an index of an image in the dataset. Check it all out over [here!](https://www.kaggle.com/tanlikesmath/what-is-your-cnn-looking-at-aptos)\n\nI know @ratthachat wrote a nice kernel on GradCAM already for Keras, but I had been planning to write this kernel for about a week now, and plus I thought it would useful to check it out using the fastai library instead. I hope this kernel is helpful!",
      "votes": null
    },
    {
      "id": "575285",
      "postDate": "07/15/2019 08:38:39",
      "content": "<p>Cool</p>",
      "rawMarkdown": "Cool",
      "votes": null
    },
    {
      "id": "575307",
      "postDate": "07/15/2019 09:02:39",
      "content": "<p>Thank you so much. :)</p>",
      "rawMarkdown": "Thank you so much. :)",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 575285,
      "author_name": "mktripathi456",
      "author_url": "",
      "post_date": "07/15/2019 08:38:39",
      "content": "<p>Cool</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 575307,
      "author_name": "rishabhiitbhu",
      "author_url": "",
      "post_date": "07/15/2019 09:02:39",
      "content": "<p>Thank you so much. :)</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "574455": "I wrote a kernel on GradCAM for the fastai library. Some users may know that GradCAM is already implemented, but only when plotting the most confused images. I walk through how GradCAM works and implementation, including useful tools like pytorch/fastai hooks. I create a general fastai function that can return the GradCAM map given an index of an image in the dataset. Check it all out over [here!](https://www.kaggle.com/tanlikesmath/what-is-your-cnn-looking-at-aptos)\n\nI know @ratthachat wrote a nice kernel on GradCAM already for Keras, but I had been planning to write this kernel for about a week now, and plus I thought it would useful to check it out using the fastai library instead. I hope this kernel is helpful!",
    "575285": "Cool",
    "575307": "Thank you so much. :)"
  },
  "source": "meta"
}