{
  "id": 419100,
  "title": "Does CV score has to be the same of LB score?",
  "url": "/competitions/predict-student-performance-from-game-play/discussion/419100",
  "author_name": "Mohamed fatah",
  "post_date": "2023-06-24T07:11:53.624000",
  "votes": 1,
  "comment_count": 2,
  "views": 0,
  "content": "<p>Does CV score has to be the same of LB score? Thanks  </p>",
  "messages": [
    {
      "id": 2317704,
      "postDate": "2023-06-25T22:28:17.457Z",
      "content": "<p>No. They don't have to be the same and usually will vary at least a small amount.</p>\n<p>It is often highly recommended to establish the correlation early on with simpler models, and try to keep them matching equally well as you progress to better and more complex models. When they diverge, it can be (usually is) a sign you are overfitting, that's why many people watch both scores very carefully.</p>",
      "rawMarkdown": "No. They don't have to be the same and usually will vary at least a small amount.\n\nIt is often highly recommended to establish the correlation early on with simpler models, and try to keep them matching equally well as you progress to better and more complex models. When they diverge, it can be (usually is) a sign you are overfitting, that's why many people watch both scores very carefully.",
      "votes": 1
    },
    {
      "id": 2315471,
      "postDate": "2023-06-24T07:11:53.623Z",
      "content": "<p>Does CV score has to be the same of LB score? Thanks  </p>",
      "rawMarkdown": "Does CV score has to be the same of LB score? Thanks  ",
      "votes": 1
    },
    {
      "id": 2315521,
      "postDate": "2023-06-24T07:49:05.537Z",
      "rawMarkdown": "",
      "votes": -1,
      "isDeleted": true
    }
  ],
  "comments": [
    {
      "id": 2317704,
      "author_name": "Robert Hatch",
      "author_url": "",
      "post_date": "2023-06-25T22:28:17.457000",
      "content": "<p>No. They don't have to be the same and usually will vary at least a small amount.</p>\n<p>It is often highly recommended to establish the correlation early on with simpler models, and try to keep them matching equally well as you progress to better and more complex models. When they diverge, it can be (usually is) a sign you are overfitting, that's why many people watch both scores very carefully.</p>",
      "votes": 1,
      "replies": []
    },
    {
      "id": 2315521,
      "author_name": "",
      "author_url": "",
      "post_date": "2023-06-24T07:49:05.537000",
      "content": "",
      "votes": -1,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "2317704": "No. They don't have to be the same and usually will vary at least a small amount.\n\nIt is often highly recommended to establish the correlation early on with simpler models, and try to keep them matching equally well as you progress to better and more complex models. When they diverge, it can be (usually is) a sign you are overfitting, that's why many people watch both scores very carefully.",
    "2315471": "Does CV score has to be the same of LB score? Thanks  ",
    "2315521": ""
  }
}