{
  "id": 414299,
  "title": "Z Coordinates",
  "url": "/competitions/asl-fingerspelling/discussion/414299",
  "author_name": "Jiaye Zou",
  "post_date": "2023-06-01T05:43:44.060000",
  "votes": 1,
  "comment_count": 2,
  "views": 0,
  "content": "<p>Even though the data description mentions \"z coordinates are not fully trained,\" I can see that many teams in the previous competition still use z values. Has anyone done ablations on using z coordinates? Does it help to include Z?</p>",
  "messages": [
    {
      "id": 2283189,
      "postDate": "2023-06-01T05:43:44.060Z",
      "content": "<p>Even though the data description mentions \"z coordinates are not fully trained,\" I can see that many teams in the previous competition still use z values. Has anyone done ablations on using z coordinates? Does it help to include Z?</p>",
      "rawMarkdown": "Even though the data description mentions \"z coordinates are not fully trained,\" I can see that many teams in the previous competition still use z values. Has anyone done ablations on using z coordinates? Does it help to include Z?",
      "votes": 1
    },
    {
      "id": 2283267,
      "postDate": "2023-06-01T06:59:28.383Z",
      "content": "<p>For my model in the previous competition, it helped, but I've seen other models which were better without Z-coordinate. I think it really depends on model, so you should try both cases</p>",
      "rawMarkdown": "For my model in the previous competition, it helped, but I've seen other models which were better without Z-coordinate. I think it really depends on model, so you should try both cases"
    },
    {
      "id": 2284993,
      "postDate": "2023-06-02T11:35:30.193Z",
      "content": "<p>I think Z coordinates are to tell you the relative distances from landmarks to the camera.</p>",
      "rawMarkdown": "I think Z coordinates are to tell you the relative distances from landmarks to the camera.",
      "isDeleted": true
    }
  ],
  "comments": [
    {
      "id": 2283267,
      "author_name": "Mykola",
      "author_url": "",
      "post_date": "2023-06-01T06:59:28.383000",
      "content": "<p>For my model in the previous competition, it helped, but I've seen other models which were better without Z-coordinate. I think it really depends on model, so you should try both cases</p>",
      "votes": 0,
      "replies": []
    },
    {
      "id": 2284993,
      "author_name": "",
      "author_url": "",
      "post_date": "2023-06-02T11:35:30.193000",
      "content": "<p>I think Z coordinates are to tell you the relative distances from landmarks to the camera.</p>",
      "votes": 0,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "2283189": "Even though the data description mentions \"z coordinates are not fully trained,\" I can see that many teams in the previous competition still use z values. Has anyone done ablations on using z coordinates? Does it help to include Z?",
    "2283267": "For my model in the previous competition, it helped, but I've seen other models which were better without Z-coordinate. I think it really depends on model, so you should try both cases",
    "2284993": "I think Z coordinates are to tell you the relative distances from landmarks to the camera."
  }
}