{
  "id": 81514,
  "title": "overfitting？？",
  "url": "/competitions/elo-merchant-category-recommendation/discussion/81514",
  "author_name": "",
  "post_date": "2019-02-22T04:58:54.424769300Z",
  "votes": null,
  "comment_count": 3,
  "views": 0,
  "content": "<p>CV : 0.365 , PL : 0.395. whats the matter??</p>",
  "messages": [
    {
      "id": "476412",
      "postDate": "02/22/2019 04:58:54",
      "content": "<p>CV : 0.365 , PL : 0.395. whats the matter??</p>",
      "rawMarkdown": "CV : 0.365 , PL : 0.395. whats the matter??",
      "votes": null
    },
    {
      "id": "476461",
      "postDate": "02/22/2019 07:20:11",
      "content": "<p>How many folds do you use in your CV? I managed to reduce the gap by using StratifiedKFold with 11 folds. Now I have CV: 3.682, LB: 3.691. But probably such a huge gap means overfitting. </p>",
      "rawMarkdown": "How many folds do you use in your CV? I managed to reduce the gap by using StratifiedKFold with 11 folds. Now I have CV: 3.682, LB: 3.691. But probably such a huge gap means overfitting.",
      "votes": null
    },
    {
      "id": "476465",
      "postDate": "02/22/2019 07:28:46",
      "content": "<p>10 folds，the gap is really big. I don't know how to deal with it.</p>",
      "rawMarkdown": "10 folds，the gap is really big. I don't know how to deal with it.",
      "votes": null
    },
    {
      "id": "477589",
      "postDate": "02/24/2019 23:19:26",
      "content": "<p>This is what is happening to everybody in this competition. A couple of misspredicted outliers can increase your rmse by 0.04 for example</p>",
      "rawMarkdown": "This is what is happening to everybody in this competition. A couple of misspredicted outliers can increase your rmse by 0.04 for example",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 476461,
      "author_name": "alexbarrow",
      "author_url": "",
      "post_date": "02/22/2019 07:20:11",
      "content": "<p>How many folds do you use in your CV? I managed to reduce the gap by using StratifiedKFold with 11 folds. Now I have CV: 3.682, LB: 3.691. But probably such a huge gap means overfitting. </p>",
      "votes": null,
      "replies": [
        {
          "id": 476465,
          "author_name": "deepcuriousv",
          "author_url": "",
          "post_date": "02/22/2019 07:28:46",
          "content": "<p>10 folds，the gap is really big. I don't know how to deal with it.</p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 477589,
          "author_name": "dkaraflos",
          "author_url": "",
          "post_date": "02/24/2019 23:19:26",
          "content": "<p>This is what is happening to everybody in this competition. A couple of misspredicted outliers can increase your rmse by 0.04 for example</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "476412": "CV : 0.365 , PL : 0.395. whats the matter??",
    "476461": "How many folds do you use in your CV? I managed to reduce the gap by using StratifiedKFold with 11 folds. Now I have CV: 3.682, LB: 3.691. But probably such a huge gap means overfitting.",
    "476465": "10 folds，the gap is really big. I don't know how to deal with it.",
    "477589": "This is what is happening to everybody in this competition. A couple of misspredicted outliers can increase your rmse by 0.04 for example"
  },
  "source": "meta"
}