{
  "id": 94358,
  "title": "Useful lesson: simply generating lots of features isn't enough",
  "url": "/competitions/LANL-Earthquake-Prediction/discussion/94358",
  "author_name": "Andrey Lukyanenko",
  "post_date": "2019-06-04T04:18:07.511000",
  "votes": 12,
  "comment_count": 10,
  "views": 0,
  "content": "<p>Well, it was obvious in the very beginning, that generating hundreds of features won't guarantee the success (at the end I had ~8k features). I tried various approaches to feature selection, but still it wasn't enough :)</p>",
  "messages": [
    {
      "id": 542739,
      "postDate": "2019-06-04T04:18:07.513Z",
      "content": "<p>Well, it was obvious in the very beginning, that generating hundreds of features won't guarantee the success (at the end I had ~8k features). I tried various approaches to feature selection, but still it wasn't enough :)</p>",
      "rawMarkdown": "Well, it was obvious in the very beginning, that generating hundreds of features won't guarantee the success (at the end I had ~8k features). I tried various approaches to feature selection, but still it wasn't enough :)",
      "votes": 11
    },
    {
      "id": 542836,
      "postDate": "2019-06-04T06:16:00.120Z",
      "content": "<p>I got a lot of insights from your kernel. Thank you.</p>",
      "rawMarkdown": "I got a lot of insights from your kernel. Thank you.",
      "votes": 5
    },
    {
      "id": 544094,
      "postDate": "2019-06-05T05:46:27.280Z",
      "content": "<p>Indeed, it was a very good lesson. I also computed way more features than needed, and I guess my methods to discard the bad ones fell short.</p>\n\n<p>I would also thank you for all your guidance. I really enjoyed going through your kernels.</p>",
      "rawMarkdown": "Indeed, it was a very good lesson. I also computed way more features than needed, and I guess my methods to discard the bad ones fell short.\n\nI would also thank you for all your guidance. I really enjoyed going through your kernels.",
      "votes": 1
    },
    {
      "id": 543104,
      "postDate": "2019-06-04T10:28:56.743Z",
      "content": "<p>Your content has been a great help. You gave everybody to try something. Thanks for sharing.</p>",
      "rawMarkdown": "Your content has been a great help. You gave everybody to try something. Thanks for sharing.",
      "votes": 2
    },
    {
      "id": 543093,
      "postDate": "2019-06-04T10:25:31.860Z",
      "content": "<p>Your FE inspired so many people here that you should get many warm thanks.  I may have reused few of your features even, thanks you if you are the author!</p>",
      "rawMarkdown": "Your FE inspired so many people here that you should get many warm thanks.  I may have reused few of your features even, thanks you if you are the author!",
      "votes": 2,
      "replies": [
        {
          "id": 543242,
          "postDate": "2019-06-04T12:05:19.330Z",
          "content": "<p>Thank you! I know that most of these features weren't really useful, but even if several of them were important - it is great.</p>",
          "rawMarkdown": "Thank you! I know that most of these features weren't really useful, but even if several of them were important - it is great.",
          "votes": 1
        }
      ]
    },
    {
      "id": 542979,
      "postDate": "2019-06-04T08:49:55.427Z",
      "content": "<p>Thanks for sharing in this competition. I believe you inspired a lot of competitors like me.  </p>",
      "rawMarkdown": "Thanks for sharing in this competition. I believe you inspired a lot of competitors like me.  ",
      "votes": 2
    },
    {
      "id": 542833,
      "postDate": "2019-06-04T06:13:43.263Z",
      "content": "<p>You are still our hero though. One of our submission was using your features + XGB with a good hyper-parameter tuning using AWS achieved 2.4 in the private leaderboard.</p>",
      "rawMarkdown": "You are still our hero though. One of our submission was using your features + XGB with a good hyper-parameter tuning using AWS achieved 2.4 in the private leaderboard.",
      "votes": 2,
      "replies": [
        {
          "id": 543238,
          "postDate": "2019-06-04T12:04:02.793Z",
          "content": "<p>Thank you :)\nWow, this is an impressive result!</p>",
          "rawMarkdown": "Thank you :)\nWow, this is an impressive result!"
        }
      ]
    },
    {
      "id": 543111,
      "postDate": "2019-06-04T10:34:44.497Z",
      "rawMarkdown": "",
      "votes": 2,
      "isDeleted": true,
      "replies": [
        {
          "id": 543241,
          "postDate": "2019-06-04T12:04:33.170Z",
          "content": "<p>Thank you! I'm really glad that my work helped so many people.</p>",
          "rawMarkdown": "Thank you! I'm really glad that my work helped so many people."
        }
      ]
    }
  ],
  "comments": [
    {
      "id": 542836,
      "author_name": "Wonho Song",
      "author_url": "",
      "post_date": "2019-06-04T06:16:00.120000",
      "content": "<p>I got a lot of insights from your kernel. Thank you.</p>",
      "votes": 5,
      "replies": []
    },
    {
      "id": 544094,
      "author_name": "Ricard Delgado",
      "author_url": "",
      "post_date": "2019-06-05T05:46:27.280000",
      "content": "<p>Indeed, it was a very good lesson. I also computed way more features than needed, and I guess my methods to discard the bad ones fell short.</p>\n\n<p>I would also thank you for all your guidance. I really enjoyed going through your kernels.</p>",
      "votes": 1,
      "replies": []
    },
    {
      "id": 543104,
      "author_name": "Karan Jakhar",
      "author_url": "",
      "post_date": "2019-06-04T10:28:56.743000",
      "content": "<p>Your content has been a great help. You gave everybody to try something. Thanks for sharing.</p>",
      "votes": 2,
      "replies": []
    },
    {
      "id": 543093,
      "author_name": "CPMP",
      "author_url": "",
      "post_date": "2019-06-04T10:25:31.860000",
      "content": "<p>Your FE inspired so many people here that you should get many warm thanks.  I may have reused few of your features even, thanks you if you are the author!</p>",
      "votes": 2,
      "replies": [
        {
          "id": 543242,
          "author_name": "Andrey Lukyanenko",
          "author_url": "",
          "post_date": "2019-06-04T12:05:19.330000",
          "content": "<p>Thank you! I know that most of these features weren't really useful, but even if several of them were important - it is great.</p>",
          "votes": 1,
          "replies": []
        }
      ]
    },
    {
      "id": 542979,
      "author_name": "Morgon",
      "author_url": "",
      "post_date": "2019-06-04T08:49:55.427000",
      "content": "<p>Thanks for sharing in this competition. I believe you inspired a lot of competitors like me.  </p>",
      "votes": 2,
      "replies": []
    },
    {
      "id": 542833,
      "author_name": "Shuhao Cao",
      "author_url": "",
      "post_date": "2019-06-04T06:13:43.263000",
      "content": "<p>You are still our hero though. One of our submission was using your features + XGB with a good hyper-parameter tuning using AWS achieved 2.4 in the private leaderboard.</p>",
      "votes": 2,
      "replies": [
        {
          "id": 543238,
          "author_name": "Andrey Lukyanenko",
          "author_url": "",
          "post_date": "2019-06-04T12:04:02.793000",
          "content": "<p>Thank you :)\nWow, this is an impressive result!</p>",
          "votes": 0,
          "replies": []
        }
      ]
    },
    {
      "id": 543111,
      "author_name": "",
      "author_url": "",
      "post_date": "2019-06-04T10:34:44.497000",
      "content": "",
      "votes": 2,
      "replies": [
        {
          "id": 543241,
          "author_name": "Andrey Lukyanenko",
          "author_url": "",
          "post_date": "2019-06-04T12:04:33.170000",
          "content": "<p>Thank you! I'm really glad that my work helped so many people.</p>",
          "votes": 0,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "542739": "Well, it was obvious in the very beginning, that generating hundreds of features won't guarantee the success (at the end I had ~8k features). I tried various approaches to feature selection, but still it wasn't enough :)",
    "542836": "I got a lot of insights from your kernel. Thank you.",
    "544094": "Indeed, it was a very good lesson. I also computed way more features than needed, and I guess my methods to discard the bad ones fell short.\n\nI would also thank you for all your guidance. I really enjoyed going through your kernels.",
    "543104": "Your content has been a great help. You gave everybody to try something. Thanks for sharing.",
    "543093": "Your FE inspired so many people here that you should get many warm thanks.  I may have reused few of your features even, thanks you if you are the author!",
    "542979": "Thanks for sharing in this competition. I believe you inspired a lot of competitors like me.  ",
    "542833": "You are still our hero though. One of our submission was using your features + XGB with a good hyper-parameter tuning using AWS achieved 2.4 in the private leaderboard.",
    "543111": ""
  }
}