{
  "id": 603208,
  "title": "Is there a leak in this competition? ",
  "url": "/competitions/cmi-detect-behavior-with-sensor-data/discussion/603208",
  "author_name": "",
  "post_date": "2025-09-01T06:03:53.868000",
  "votes": 7,
  "comment_count": 9,
  "views": 0,
  "content": "<p>Is there a leak in this competition? Can the top scores really be achieved purely through features and models?</p>",
  "messages": [
    {
      "id": 3279601,
      "postDate": "2025-09-01T06:03:53.870Z",
      "content": "<p>Is there a leak in this competition? Can the top scores really be achieved purely through features and models?</p>",
      "rawMarkdown": "Is there a leak in this competition? Can the top scores really be achieved purely through features and models?",
      "votes": 7
    },
    {
      "id": 3279681,
      "postDate": "2025-09-01T08:12:13.190Z",
      "content": "<p>I don't think there is a data leak here. I am also very surprised that the LB reached 0.898. A month ago, I came up with an idea but couldn't implement it successfully. However, now, with some modifications, that idea is showing a significant improvement in CV.</p>",
      "rawMarkdown": "I don't think there is a data leak here. I am also very surprised that the LB reached 0.898. A month ago, I came up with an idea but couldn't implement it successfully. However, now, with some modifications, that idea is showing a significant improvement in CV.",
      "votes": 4,
      "replies": [
        {
          "id": 3279692,
          "postDate": "2025-09-01T08:22:17.847Z",
          "rawMarkdown": "",
          "isDeleted": true
        }
      ]
    },
    {
      "id": 3279615,
      "postDate": "2025-09-01T06:25:10.230Z",
      "content": "<p>I'm very curious about what their CV scores look like.</p>",
      "rawMarkdown": "I'm very curious about what their CV scores look like.",
      "votes": 1,
      "replies": [
        {
          "id": 3280572,
          "postDate": "2025-09-02T21:12:45.443Z",
          "content": "<p>Actually in 2 hours:)</p>",
          "rawMarkdown": "Actually in 2 hours:)"
        }
      ]
    },
    {
      "id": 3279762,
      "postDate": "2025-09-01T12:33:20.117Z",
      "content": "<p>We will get to know in 2 days :)</p>",
      "rawMarkdown": "We will get to know in 2 days :)",
      "votes": 2
    },
    {
      "id": 3279760,
      "postDate": "2025-09-01T12:29:03.630Z",
      "content": "<p>At least there is some secret sauce!</p>",
      "rawMarkdown": "At least there is some secret sauce!",
      "votes": 2,
      "replies": [
        {
          "id": 3279833,
          "postDate": "2025-09-01T14:16:23.363Z",
          "content": "<p>LB overfit as an example.</p>",
          "rawMarkdown": "LB overfit as an example.",
          "votes": 1,
          "replies": [
            {
              "id": 3279970,
              "postDate": "2025-09-01T20:09:12.800Z",
              "content": "<p>I wish I knew how to overfit  LB like you guys! My overfitting skills are pretty lame in comparison!</p>",
              "rawMarkdown": "I wish I knew how to overfit  LB like you guys! My overfitting skills are pretty lame in comparison!",
              "votes": 2
            },
            {
              "id": 3280054,
              "postDate": "2025-09-02T01:42:55.403Z",
              "content": "<p>Even I have no idea of overfitting😂</p>",
              "rawMarkdown": "Even I have no idea of overfitting😂"
            }
          ]
        }
      ]
    }
  ],
  "comments": [
    {
      "id": 3279681,
      "author_name": "Quan Vu",
      "author_url": "",
      "post_date": "2025-09-01T08:12:13.190000",
      "content": "<p>I don't think there is a data leak here. I am also very surprised that the LB reached 0.898. A month ago, I came up with an idea but couldn't implement it successfully. However, now, with some modifications, that idea is showing a significant improvement in CV.</p>",
      "votes": 4,
      "replies": [
        {
          "id": 3279692,
          "author_name": "",
          "author_url": "",
          "post_date": "2025-09-01T08:22:17.847000",
          "content": "",
          "votes": 0,
          "replies": []
        }
      ]
    },
    {
      "id": 3279615,
      "author_name": "Timmy Juicehouse",
      "author_url": "",
      "post_date": "2025-09-01T06:25:10.230000",
      "content": "<p>I'm very curious about what their CV scores look like.</p>",
      "votes": 1,
      "replies": [
        {
          "id": 3280572,
          "author_name": "Mao",
          "author_url": "",
          "post_date": "2025-09-02T21:12:45.443000",
          "content": "<p>Actually in 2 hours:)</p>",
          "votes": 0,
          "replies": []
        }
      ]
    },
    {
      "id": 3279762,
      "author_name": "AK",
      "author_url": "",
      "post_date": "2025-09-01T12:33:20.117000",
      "content": "<p>We will get to know in 2 days :)</p>",
      "votes": 2,
      "replies": []
    },
    {
      "id": 3279760,
      "author_name": "Optimo",
      "author_url": "",
      "post_date": "2025-09-01T12:29:03.630000",
      "content": "<p>At least there is some secret sauce!</p>",
      "votes": 2,
      "replies": [
        {
          "id": 3279833,
          "author_name": "Ogurtsov",
          "author_url": "",
          "post_date": "2025-09-01T14:16:23.363000",
          "content": "<p>LB overfit as an example.</p>",
          "votes": 1,
          "replies": [
            {
              "id": 3279970,
              "author_name": "Optimo",
              "author_url": "",
              "post_date": "2025-09-01T20:09:12.800000",
              "content": "<p>I wish I knew how to overfit  LB like you guys! My overfitting skills are pretty lame in comparison!</p>",
              "votes": 2,
              "replies": []
            },
            {
              "id": 3280054,
              "author_name": "Timmy Juicehouse",
              "author_url": "",
              "post_date": "2025-09-02T01:42:55.403000",
              "content": "<p>Even I have no idea of overfitting😂</p>",
              "votes": 0,
              "replies": []
            }
          ]
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "3279601": "Is there a leak in this competition? Can the top scores really be achieved purely through features and models?",
    "3279681": "I don't think there is a data leak here. I am also very surprised that the LB reached 0.898. A month ago, I came up with an idea but couldn't implement it successfully. However, now, with some modifications, that idea is showing a significant improvement in CV.",
    "3279615": "I'm very curious about what their CV scores look like.",
    "3279762": "We will get to know in 2 days :)",
    "3279760": "At least there is some secret sauce!"
  }
}