{
  "id": 125390,
  "title": "confusion about the logits in training results",
  "url": "/competitions/pku-autonomous-driving/discussion/125390",
  "author_name": "",
  "post_date": "2020-01-10T10:01:56.232999500Z",
  "votes": 1,
  "comment_count": 3,
  "views": 0,
  "content": "<p>After I trained  baseline such as centernet or resnet-starter,I got empty prediction.And I find the value of prediction[0]0 is very small(nearly -100). I have no idea about it, because I changed nothing about the baseline.So,I hope someone could help me handle it.Thanks!</p>",
  "messages": [
    {
      "id": "715255",
      "postDate": "01/10/2020 10:01:56",
      "content": "<p>After I trained  baseline such as centernet or resnet-starter,I got empty prediction.And I find the value of prediction[0]0 is very small(nearly -100). I have no idea about it, because I changed nothing about the baseline.So,I hope someone could help me handle it.Thanks!</p>",
      "rawMarkdown": "After I trained  baseline such as centernet or resnet-starter,I got empty prediction.And I find the value of prediction[0][0](liogits) is very small(nearly -100). I have no idea about it, because I changed nothing about the baseline.So,I hope someone could help me handle it.Thanks!",
      "votes": null
    },
    {
      "id": "715314",
      "postDate": "01/10/2020 11:43:56",
      "content": "<p>maybe you are using optimizer that is not converging?\nmaybe you are training for very few epoches like 3/4?\nmaybe you are resizing images down to very small scale before training?</p>",
      "rawMarkdown": "maybe you are using optimizer that is not converging?\nmaybe you are training for very few epoches like 3/4?\nmaybe you are resizing images down to very small scale before training?",
      "votes": null
    },
    {
      "id": "715923",
      "postDate": "01/11/2020 01:27:49",
      "content": "<p>Thanks for your reply,I thought the reason is I changed the optimizer from AdamW to Adam,so it is not converging.</p>",
      "rawMarkdown": "Thanks for your reply,I thought the reason is I changed the optimizer from AdamW to Adam,so it is not converging.",
      "votes": null
    },
    {
      "id": "715933",
      "postDate": "01/11/2020 01:56:53",
      "content": "<p>Adam will converge,maybe it's something else</p>",
      "rawMarkdown": "Adam will converge,maybe it's something else",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 715314,
      "author_name": "mobassir",
      "author_url": "",
      "post_date": "01/10/2020 11:43:56",
      "content": "<p>maybe you are using optimizer that is not converging?\nmaybe you are training for very few epoches like 3/4?\nmaybe you are resizing images down to very small scale before training?</p>",
      "votes": null,
      "replies": [
        {
          "id": 715923,
          "author_name": "thefatcat",
          "author_url": "",
          "post_date": "01/11/2020 01:27:49",
          "content": "<p>Thanks for your reply,I thought the reason is I changed the optimizer from AdamW to Adam,so it is not converging.</p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 715933,
          "author_name": "mobassir",
          "author_url": "",
          "post_date": "01/11/2020 01:56:53",
          "content": "<p>Adam will converge,maybe it's something else</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "715255": "After I trained  baseline such as centernet or resnet-starter,I got empty prediction.And I find the value of prediction[0][0](liogits) is very small(nearly -100). I have no idea about it, because I changed nothing about the baseline.So,I hope someone could help me handle it.Thanks!",
    "715314": "maybe you are using optimizer that is not converging?\nmaybe you are training for very few epoches like 3/4?\nmaybe you are resizing images down to very small scale before training?",
    "715923": "Thanks for your reply,I thought the reason is I changed the optimizer from AdamW to Adam,so it is not converging.",
    "715933": "Adam will converge,maybe it's something else"
  },
  "source": "meta"
}