{
  "id": 79239,
  "title": "Why training to min(RMSE) is worse than min(logloss) for outlier model?",
  "url": "/competitions/elo-merchant-category-recommendation/discussion/79239",
  "author_name": "Correlation",
  "post_date": "2019-02-01T15:29:43.621000",
  "votes": 0,
  "comment_count": 3,
  "views": 0,
  "content": "<p>Hi, all</p>\n\n<p>I set outlier to 1 and the rest 0 for training outlier model by lgb.\nI got a RMSE~0.09880 of valid set when objective is 'binary_logloss', but ~0.09900 for 'regression'.\nI'm confused because metric is RMSE.</p>\n\n<p>Thanks.</p>",
  "messages": [
    {
      "id": 467574,
      "postDate": "2019-02-07T10:59:37.357Z",
      "content": "<p>Hi, friend, Are you interested in forming a team? We currently have two team members.</p>",
      "rawMarkdown": "Hi, friend, Are you interested in forming a team? We currently have two team members.",
      "replies": [
        {
          "id": 467589,
          "postDate": "2019-02-07T11:36:28.643Z",
          "content": "<p>Thanks. I am not sure if I can improve your results, but I want to try. How can I contact you?</p>",
          "rawMarkdown": "Thanks. I am not sure if I can improve your results, but I want to try. How can I contact you?"
        },
        {
          "id": 467620,
          "postDate": "2019-02-07T12:33:33.727Z",
          "rawMarkdown": "",
          "isDeleted": true
        }
      ]
    },
    {
      "id": 464827,
      "postDate": "2019-02-01T15:29:43.620Z",
      "content": "<p>Hi, all</p>\n\n<p>I set outlier to 1 and the rest 0 for training outlier model by lgb.\nI got a RMSE~0.09880 of valid set when objective is 'binary_logloss', but ~0.09900 for 'regression'.\nI'm confused because metric is RMSE.</p>\n\n<p>Thanks.</p>",
      "rawMarkdown": "Hi, all\n\nI set outlier to 1 and the rest 0 for training outlier model by lgb.\nI got a RMSE~0.09880 of valid set when objective is 'binary_logloss', but ~0.09900 for 'regression'.\nI'm confused because metric is RMSE.\n\nThanks.\n"
    }
  ],
  "comments": [
    {
      "id": 467574,
      "author_name": "THLUO",
      "author_url": "",
      "post_date": "2019-02-07T10:59:37.357000",
      "content": "<p>Hi, friend, Are you interested in forming a team? We currently have two team members.</p>",
      "votes": 0,
      "replies": [
        {
          "id": 467589,
          "author_name": "Correlation",
          "author_url": "",
          "post_date": "2019-02-07T11:36:28.643000",
          "content": "<p>Thanks. I am not sure if I can improve your results, but I want to try. How can I contact you?</p>",
          "votes": 0,
          "replies": []
        },
        {
          "id": 467620,
          "author_name": "",
          "author_url": "",
          "post_date": "2019-02-07T12:33:33.727000",
          "content": "",
          "votes": 0,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "467574": "Hi, friend, Are you interested in forming a team? We currently have two team members.",
    "464827": "Hi, all\n\nI set outlier to 1 and the rest 0 for training outlier model by lgb.\nI got a RMSE~0.09880 of valid set when objective is 'binary_logloss', but ~0.09900 for 'regression'.\nI'm confused because metric is RMSE.\n\nThanks.\n"
  }
}