{
  "id": 47526,
  "title": "Open kernel----LGB starter",
  "url": "/competitions/favorita-grocery-sales-forecasting/discussion/47526",
  "author_name": "",
  "post_date": "2018-01-16T00:29:47.112345400Z",
  "votes": 1,
  "comment_count": 4,
  "views": 0,
  "content": "<p>In fact, we are using the LGB starter to get top 4 in the public leaderboard. But it seems that on promotion information is quite tricky for the private leaderboard.. I don't know whether it is the same for others?</p>",
  "messages": [
    {
      "id": "268929",
      "postDate": "01/16/2018 00:29:47",
      "content": "<p>In fact, we are using the LGB starter to get top 4 in the public leaderboard. But it seems that on promotion information is quite tricky for the private leaderboard.. I don't know whether it is the same for others?</p>",
      "rawMarkdown": "In fact, we are using the LGB starter to get top 4 in the public leaderboard. But it seems that on promotion information is quite tricky for the private leaderboard.. I don't know whether it is the same for others?",
      "votes": null
    },
    {
      "id": "268951",
      "postDate": "01/16/2018 01:14:22",
      "content": "<p>I uesd LGB starter too (just add some feature randomly) and get .515 in privateboard (public only .512)  ten days before.</p>\n\n<p>and I thought promotion 'fillna with False' lead to bias between public and private.</p>\n\n<p>So I make some rules to deal with bias ( \"last 21 days no sales →\n onpromotopn to False\")</p>\n\n<p>It make me public .505 but private .517</p>",
      "rawMarkdown": "I uesd LGB starter too (just add some feature randomly) and get .515 in privateboard (public only .512)  ten days before.\n\nand I thought promotion 'fillna with False' lead to bias between public and private.\n\nSo I make some rules to deal with bias ( \"last 21 days no sales →\n onpromotopn to False\")\n\nIt make me public .505 but private .517",
      "votes": null
    },
    {
      "id": "268998",
      "postDate": "01/16/2018 03:13:10",
      "content": "<p>Very sad.  similar story here. </p>",
      "rawMarkdown": "Very sad.  similar story here.",
      "votes": null
    },
    {
      "id": "269118",
      "postDate": "01/16/2018 08:24:18",
      "content": "<p>A xi ba</p>",
      "rawMarkdown": "A xi ba",
      "votes": null
    },
    {
      "id": "269181",
      "postDate": "01/16/2018 11:56:40",
      "content": "<p>We just ignored older data, and only sued periods where onpromotion is fully known.</p>",
      "rawMarkdown": "We just ignored older data, and only sued periods where onpromotion is fully known.",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 268951,
      "author_name": "h4211819",
      "author_url": "",
      "post_date": "01/16/2018 01:14:22",
      "content": "<p>I uesd LGB starter too (just add some feature randomly) and get .515 in privateboard (public only .512)  ten days before.</p>\n\n<p>and I thought promotion 'fillna with False' lead to bias between public and private.</p>\n\n<p>So I make some rules to deal with bias ( \"last 21 days no sales →\n onpromotopn to False\")</p>\n\n<p>It make me public .505 but private .517</p>",
      "votes": null,
      "replies": [
        {
          "id": 268998,
          "author_name": "paulz11",
          "author_url": "",
          "post_date": "01/16/2018 03:13:10",
          "content": "<p>Very sad.  similar story here. </p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 269118,
          "author_name": "wuzuping",
          "author_url": "",
          "post_date": "01/16/2018 08:24:18",
          "content": "<p>A xi ba</p>",
          "votes": null,
          "replies": []
        }
      ]
    },
    {
      "id": 269181,
      "author_name": "cpmpml",
      "author_url": "",
      "post_date": "01/16/2018 11:56:40",
      "content": "<p>We just ignored older data, and only sued periods where onpromotion is fully known.</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "268929": "In fact, we are using the LGB starter to get top 4 in the public leaderboard. But it seems that on promotion information is quite tricky for the private leaderboard.. I don't know whether it is the same for others?",
    "268951": "I uesd LGB starter too (just add some feature randomly) and get .515 in privateboard (public only .512)  ten days before.\n\nand I thought promotion 'fillna with False' lead to bias between public and private.\n\nSo I make some rules to deal with bias ( \"last 21 days no sales →\n onpromotopn to False\")\n\nIt make me public .505 but private .517",
    "268998": "Very sad.  similar story here.",
    "269118": "A xi ba",
    "269181": "We just ignored older data, and only sued periods where onpromotion is fully known."
  },
  "source": "meta"
}