{
  "id": 384481,
  "title": "Index and elapsed time not matching",
  "url": "/competitions/predict-student-performance-from-game-play/discussion/384481",
  "author_name": "",
  "post_date": "2023-02-08T03:27:46.123211400Z",
  "votes": 4,
  "comment_count": 2,
  "views": 0,
  "content": "<p>Elapsed time in this competition is defined as how much time has passed (in milliseconds) between the start of the session and when the event was recorded which means that it should be more or less monotonically increasing in terms of event index, but the first three rows show that this is not the case. Is that relationship guaranteed in this dataset?</p>",
  "messages": [
    {
      "id": "2134509",
      "postDate": "02/08/2023 03:27:46",
      "content": "<p>Elapsed time in this competition is defined as how much time has passed (in milliseconds) between the start of the session and when the event was recorded which means that it should be more or less monotonically increasing in terms of event index, but the first three rows show that this is not the case. Is that relationship guaranteed in this dataset?</p>",
      "rawMarkdown": "Elapsed time in this competition is defined as how much time has passed (in milliseconds) between the start of the session and when the event was recorded which means that it should be more or less monotonically increasing in terms of event index, but the first three rows show that this is not the case. Is that relationship guaranteed in this dataset?",
      "votes": null
    },
    {
      "id": "2134518",
      "postDate": "02/08/2023 03:48:25",
      "content": "<p><a href=\"https://www.kaggle.com/competitions/predict-student-performance-from-game-play/discussion/384342\" target=\"_blank\">This topic</a> helps you. `</p>\n<blockquote>\n  <p>These are both data errors in elapsed_time and index, which may be partly due to timestamps on the server sometimes being inaccurate if a student is clicking or performing other actions very quickly.</p>\n</blockquote>",
      "rawMarkdown": "[This topic](https://www.kaggle.com/competitions/predict-student-performance-from-game-play/discussion/384342) helps you. `\n\n\n> These are both data errors in elapsed_time and index, which may be partly due to timestamps on the server sometimes being inaccurate if a student is clicking or performing other actions very quickly.",
      "votes": null
    },
    {
      "id": "2134654",
      "postDate": "02/08/2023 06:57:58",
      "content": "<p>Thanks, so data cleaning will be fairly involved this time around. Good luck!</p>",
      "rawMarkdown": "Thanks, so data cleaning will be fairly involved this time around. Good luck!",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 2134518,
      "author_name": "tomokikmogura",
      "author_url": "",
      "post_date": "02/08/2023 03:48:25",
      "content": "<p><a href=\"https://www.kaggle.com/competitions/predict-student-performance-from-game-play/discussion/384342\" target=\"_blank\">This topic</a> helps you. `</p>\n<blockquote>\n  <p>These are both data errors in elapsed_time and index, which may be partly due to timestamps on the server sometimes being inaccurate if a student is clicking or performing other actions very quickly.</p>\n</blockquote>",
      "votes": null,
      "replies": [
        {
          "id": 2134654,
          "author_name": "phantnguyen",
          "author_url": "",
          "post_date": "02/08/2023 06:57:58",
          "content": "<p>Thanks, so data cleaning will be fairly involved this time around. Good luck!</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "2134509": "Elapsed time in this competition is defined as how much time has passed (in milliseconds) between the start of the session and when the event was recorded which means that it should be more or less monotonically increasing in terms of event index, but the first three rows show that this is not the case. Is that relationship guaranteed in this dataset?",
    "2134518": "[This topic](https://www.kaggle.com/competitions/predict-student-performance-from-game-play/discussion/384342) helps you. `\n\n\n> These are both data errors in elapsed_time and index, which may be partly due to timestamps on the server sometimes being inaccurate if a student is clicking or performing other actions very quickly.",
    "2134654": "Thanks, so data cleaning will be fairly involved this time around. Good luck!"
  },
  "source": "meta"
}