{
  "id": 585387,
  "title": "is there a data shift between training set and test set?",
  "url": "/competitions/drw-crypto-market-prediction/discussion/585387",
  "author_name": "",
  "post_date": "2025-06-20T02:37:31.481586Z",
  "votes": null,
  "comment_count": 2,
  "views": 0,
  "content": "<p>my personr score on training set and validation set is around 0.7.But on the test set ,it is only 0.05.</p>",
  "messages": [
    {
      "id": "3228280",
      "postDate": "06/20/2025 02:37:31",
      "content": "<p>my personr score on training set and validation set is around 0.7.But on the test set ,it is only 0.05.</p>",
      "rawMarkdown": "my personr score on training set and validation set is around 0.7.But on the test set ,it is only 0.05.",
      "votes": null
    },
    {
      "id": "3228315",
      "postDate": "06/20/2025 03:24:00",
      "content": "<p>You need to split the training set considering time information as past (train) and future (val), rather than splitting it randomly.</p>",
      "rawMarkdown": "You need to split the training set considering time information as past (train) and future (val), rather than splitting it randomly.",
      "votes": null
    },
    {
      "id": "3228318",
      "postDate": "06/20/2025 03:33:12",
      "content": "<p>got it,thx😘</p>",
      "rawMarkdown": "got it,thx😘",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 3228315,
      "author_name": "onurkoc83",
      "author_url": "",
      "post_date": "06/20/2025 03:24:00",
      "content": "<p>You need to split the training set considering time information as past (train) and future (val), rather than splitting it randomly.</p>",
      "votes": null,
      "replies": [
        {
          "id": 3228318,
          "author_name": "yrainyy",
          "author_url": "",
          "post_date": "06/20/2025 03:33:12",
          "content": "<p>got it,thx😘</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "3228280": "my personr score on training set and validation set is around 0.7.But on the test set ,it is only 0.05.",
    "3228315": "You need to split the training set considering time information as past (train) and future (val), rather than splitting it randomly.",
    "3228318": "got it,thx😘"
  },
  "source": "meta"
}