{
  "id": 168345,
  "title": "Huge gap between val_AUC and LB ?",
  "url": "/competitions/siim-isic-melanoma-classification/discussion/168345",
  "author_name": "",
  "post_date": "2020-07-20T08:11:58.550453100Z",
  "votes": 3,
  "comment_count": 5,
  "views": 0,
  "content": "<p>I submit my predictions with about 0.9 val_auc but got the LB scores around .55 every time. What could be the problem?</p>",
  "messages": [
    {
      "id": "936436",
      "postDate": "07/20/2020 08:11:58",
      "content": "<p>I submit my predictions with about 0.9 val_auc but got the LB scores around .55 every time. What could be the problem?</p>",
      "rawMarkdown": "I submit my predictions with about 0.9 val_auc but got the LB scores around .55 every time. What could be the problem?",
      "votes": null
    },
    {
      "id": "936440",
      "postDate": "07/20/2020 08:16:27",
      "content": "<p>It seems like a classic case of IDs being mixed up in submission file :D</p>",
      "rawMarkdown": "It seems like a classic case of IDs being mixed up in submission file :D",
      "votes": null
    },
    {
      "id": "936447",
      "postDate": "07/20/2020 08:22:55",
      "content": "<p>How should i rectify it sir ?</p>",
      "rawMarkdown": "How should i rectify it sir ?",
      "votes": null
    },
    {
      "id": "936453",
      "postDate": "07/20/2020 08:27:06",
      "content": "<p>Is shuffle=True in test dataloader?\nAre predictions in submission file pointing to correct image ids?</p>",
      "rawMarkdown": "Is shuffle=True in test dataloader?\nAre predictions in submission file pointing to correct image ids?",
      "votes": null
    },
    {
      "id": "936526",
      "postDate": "07/20/2020 09:43:05",
      "content": "<p>Thanks <a href=\"/abhishek\">@abhishek</a> sir, problem resolved... actually order of the test dataset was set to False😄 </p>",
      "rawMarkdown": "Thanks @abhishek sir, problem resolved... actually order of the test dataset was set to False😄",
      "votes": null
    },
    {
      "id": "936529",
      "postDate": "07/20/2020 09:45:50",
      "content": "<p>awesome!</p>",
      "rawMarkdown": "awesome!",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 936440,
      "author_name": "abhishek",
      "author_url": "",
      "post_date": "07/20/2020 08:16:27",
      "content": "<p>It seems like a classic case of IDs being mixed up in submission file :D</p>",
      "votes": null,
      "replies": [
        {
          "id": 936447,
          "author_name": "anuragkushwah",
          "author_url": "",
          "post_date": "07/20/2020 08:22:55",
          "content": "<p>How should i rectify it sir ?</p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 936453,
          "author_name": "abhishek",
          "author_url": "",
          "post_date": "07/20/2020 08:27:06",
          "content": "<p>Is shuffle=True in test dataloader?\nAre predictions in submission file pointing to correct image ids?</p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 936526,
          "author_name": "anuragkushwah",
          "author_url": "",
          "post_date": "07/20/2020 09:43:05",
          "content": "<p>Thanks <a href=\"/abhishek\">@abhishek</a> sir, problem resolved... actually order of the test dataset was set to False😄 </p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 936529,
          "author_name": "abhishek",
          "author_url": "",
          "post_date": "07/20/2020 09:45:50",
          "content": "<p>awesome!</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "936436": "I submit my predictions with about 0.9 val_auc but got the LB scores around .55 every time. What could be the problem?",
    "936440": "It seems like a classic case of IDs being mixed up in submission file :D",
    "936447": "How should i rectify it sir ?",
    "936453": "Is shuffle=True in test dataloader?\nAre predictions in submission file pointing to correct image ids?",
    "936526": "Thanks @abhishek sir, problem resolved... actually order of the test dataset was set to False😄",
    "936529": "awesome!"
  },
  "source": "meta"
}