{
  "id": 155736,
  "title": "Better proportion of malignant images in test data",
  "url": "/competitions/siim-isic-melanoma-classification/discussion/155736",
  "author_name": "",
  "post_date": "2020-06-02T19:14:54.583155300Z",
  "votes": 9,
  "comment_count": 1,
  "views": 0,
  "content": "<p>Do we have more malignant images in the test data,\nwhereas training data has only 584/33126 = 1.76% with high class imbalance.</p>\n\n<p>Better class balance in the test data will definitely help with the LB score.</p>\n\n<p>PS: The external data at <a href=\"https://www.isic-archive.com/#!/topWithHeader/onlyHeaderTop/gallery\">https://www.isic-archive.com/#!/topWithHeader/onlyHeaderTop/gallery</a> has 2285+ malignant examples, which should help reduce the class imbalance problem during training.</p>",
  "messages": [
    {
      "id": "871973",
      "postDate": "06/02/2020 19:14:54",
      "content": "<p>Do we have more malignant images in the test data,\nwhereas training data has only 584/33126 = 1.76% with high class imbalance.</p>\n\n<p>Better class balance in the test data will definitely help with the LB score.</p>\n\n<p>PS: The external data at <a href=\"https://www.isic-archive.com/#!/topWithHeader/onlyHeaderTop/gallery\">https://www.isic-archive.com/#!/topWithHeader/onlyHeaderTop/gallery</a> has 2285+ malignant examples, which should help reduce the class imbalance problem during training.</p>",
      "rawMarkdown": "Do we have more malignant images in the test data,\nwhereas training data has only 584/33126 = 1.76% with high class imbalance.\n\nBetter class balance in the test data will definitely help with the LB score.\n\nPS: The external data at https://www.isic-archive.com/#!/topWithHeader/onlyHeaderTop/gallery has 2285+ malignant examples, which should help reduce the class imbalance problem during training.",
      "votes": null
    },
    {
      "id": "973315",
      "postDate": "08/17/2020 08:28:37",
      "content": "<p>true !!!!!</p>",
      "rawMarkdown": "true !!!!!",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 973315,
      "author_name": "yagnasrip2",
      "author_url": "",
      "post_date": "08/17/2020 08:28:37",
      "content": "<p>true !!!!!</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "871973": "Do we have more malignant images in the test data,\nwhereas training data has only 584/33126 = 1.76% with high class imbalance.\n\nBetter class balance in the test data will definitely help with the LB score.\n\nPS: The external data at https://www.isic-archive.com/#!/topWithHeader/onlyHeaderTop/gallery has 2285+ malignant examples, which should help reduce the class imbalance problem during training.",
    "973315": "true !!!!!"
  },
  "source": "meta"
}