{
  "id": 406315,
  "title": "Rotation matrices",
  "url": "/competitions/asl-signs/discussion/406315",
  "author_name": "",
  "post_date": "2023-05-02T00:52:02.629328900Z",
  "votes": 1,
  "comment_count": 3,
  "views": 0,
  "content": "<p>Has anyone tried working with rotation matrices? More precisely, with local rotation matrices for the joints of the human body.Theoretically, it is not the position of the key points that is important for us, but the degrees that are formed by the joints at a certain sign</p>",
  "messages": [
    {
      "id": "2241931",
      "postDate": "05/02/2023 00:52:02",
      "content": "<p>Has anyone tried working with rotation matrices? More precisely, with local rotation matrices for the joints of the human body.Theoretically, it is not the position of the key points that is important for us, but the degrees that are formed by the joints at a certain sign</p>",
      "rawMarkdown": "Has anyone tried working with rotation matrices? More precisely, with local rotation matrices for the joints of the human body.Theoretically, it is not the position of the key points that is important for us, but the degrees that are formed by the joints at a certain sign",
      "votes": null
    },
    {
      "id": "2241935",
      "postDate": "05/02/2023 00:55:44",
      "content": "<p>I have tried using angles between joints instead of distances but got worse result on CV</p>",
      "rawMarkdown": "I have tried using angles between joints instead of distances but got worse result on CV",
      "votes": null
    },
    {
      "id": "2242804",
      "postDate": "05/02/2023 14:17:54",
      "content": "<p>shared transformer with hand-crafted features works for me. (+2~3% better than original shared notebook.)</p>\n<p>for more detail, please check the below.<br>\n<a href=\"https://www.kaggle.com/competitions/asl-signs/discussion/406457#2242787\" target=\"_blank\">https://www.kaggle.com/competitions/asl-signs/discussion/406457#2242787</a></p>",
      "rawMarkdown": "shared transformer with hand-crafted features works for me. (+2~3% better than original shared notebook.)\n\nfor more detail, please check the below.\n[https://www.kaggle.com/competitions/asl-signs/discussion/406457#2242787](https://www.kaggle.com/competitions/asl-signs/discussion/406457#2242787)",
      "votes": null
    },
    {
      "id": "2246988",
      "postDate": "05/05/2023 15:47:27",
      "content": "<p>It seems to me that using the angle between the joints should improve the result on CV</p>",
      "rawMarkdown": "It seems to me that using the angle between the joints should improve the result on CV",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 2241935,
      "author_name": "martynoveduard",
      "author_url": "",
      "post_date": "05/02/2023 00:55:44",
      "content": "<p>I have tried using angles between joints instead of distances but got worse result on CV</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 2242804,
      "author_name": "clearwaterkzk",
      "author_url": "",
      "post_date": "05/02/2023 14:17:54",
      "content": "<p>shared transformer with hand-crafted features works for me. (+2~3% better than original shared notebook.)</p>\n<p>for more detail, please check the below.<br>\n<a href=\"https://www.kaggle.com/competitions/asl-signs/discussion/406457#2242787\" target=\"_blank\">https://www.kaggle.com/competitions/asl-signs/discussion/406457#2242787</a></p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 2246988,
      "author_name": "ivanisaev",
      "author_url": "",
      "post_date": "05/05/2023 15:47:27",
      "content": "<p>It seems to me that using the angle between the joints should improve the result on CV</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "2241931": "Has anyone tried working with rotation matrices? More precisely, with local rotation matrices for the joints of the human body.Theoretically, it is not the position of the key points that is important for us, but the degrees that are formed by the joints at a certain sign",
    "2241935": "I have tried using angles between joints instead of distances but got worse result on CV",
    "2242804": "shared transformer with hand-crafted features works for me. (+2~3% better than original shared notebook.)\n\nfor more detail, please check the below.\n[https://www.kaggle.com/competitions/asl-signs/discussion/406457#2242787](https://www.kaggle.com/competitions/asl-signs/discussion/406457#2242787)",
    "2246988": "It seems to me that using the angle between the joints should improve the result on CV"
  },
  "source": "meta"
}