{
  "id": 47545,
  "title": "Leak from the future",
  "url": "/competitions/favorita-grocery-sales-forecasting/discussion/47545",
  "author_name": "",
  "post_date": "2018-01-16T04:43:12.505478900Z",
  "votes": 8,
  "comment_count": 1,
  "views": 0,
  "content": "<p>Very interesting data leak was presented in this competition. They oftenly put item \"onPromotion\", when this item is badly sold last days (to minimize material loss on this items and clear storage) . So having \"OnPromotion\" data from the future, we can improve our predictions for past. This leak has been exploited in public kernels.</p>",
  "messages": [
    {
      "id": "269029",
      "postDate": "01/16/2018 04:43:12",
      "content": "<p>Very interesting data leak was presented in this competition. They oftenly put item \"onPromotion\", when this item is badly sold last days (to minimize material loss on this items and clear storage) . So having \"OnPromotion\" data from the future, we can improve our predictions for past. This leak has been exploited in public kernels.</p>",
      "rawMarkdown": "Very interesting data leak was presented in this competition. They oftenly put item \"onPromotion\", when this item is badly sold last days (to minimize material loss on this items and clear storage) . So having \"OnPromotion\" data from the future, we can improve our predictions for past. This leak has been exploited in public kernels.",
      "votes": null
    },
    {
      "id": "269225",
      "postDate": "01/16/2018 13:51:01",
      "content": "<p>Thanks, you just make clear to me why including future on promotion status was helping predict sales.  I noticed it but could not explain it</p>",
      "rawMarkdown": "Thanks, you just make clear to me why including future on promotion status was helping predict sales.  I noticed it but could not explain it",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 269225,
      "author_name": "cpmpml",
      "author_url": "",
      "post_date": "01/16/2018 13:51:01",
      "content": "<p>Thanks, you just make clear to me why including future on promotion status was helping predict sales.  I noticed it but could not explain it</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "269029": "Very interesting data leak was presented in this competition. They oftenly put item \"onPromotion\", when this item is badly sold last days (to minimize material loss on this items and clear storage) . So having \"OnPromotion\" data from the future, we can improve our predictions for past. This leak has been exploited in public kernels.",
    "269225": "Thanks, you just make clear to me why including future on promotion status was helping predict sales.  I noticed it but could not explain it"
  },
  "source": "meta"
}