{
  "id": 2622,
  "title": "Question about the Random Benchmark score",
  "url": "/competitions/Raising-Money-to-Fund-an-Organizational-Mission/discussion/2622",
  "author_name": "",
  "post_date": "2012-09-09T20:35:08.893Z",
  "votes": null,
  "comment_count": 1,
  "views": 1836,
  "content": "<p>Coming to this one late in the game and seeing the size of the data files probably too late! Here is a dumb question I have, why does the random submission not score 0.75? I clearly have not understood the scoring metric properly. As I understand it your\r\n score is the sum of the real amounts (possibly raised to 1.15) over the top 75% of your predicts divided by the sum of the real amount of the entire 100% (with the caveat that you partition the data according to a tuple key before doing this).&nbsp;</p>",
  "messages": [
    {
      "id": "14139",
      "postDate": "09/09/2012 20:35:08",
      "content": "<p>Coming to this one late in the game and seeing the size of the data files probably too late! Here is a dumb question I have, why does the random submission not score 0.75? I clearly have not understood the scoring metric properly. As I understand it your\r\n score is the sum of the real amounts (possibly raised to 1.15) over the top 75% of your predicts divided by the sum of the real amount of the entire 100% (with the caveat that you partition the data according to a tuple key before doing this).&nbsp;</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "14140",
      "postDate": "09/09/2012 22:10:26",
      "content": "<p>It's just the average amounts within the selected 75% (so it's not unitless like a proportio -- the units are the same as the original response variable, in this case dollars^1.15).</p>\r\n<p>Maybe a proportion would have been easier to understand. (And would be equivalent.)</p>",
      "rawMarkdown": "",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 14140,
      "author_name": "dchudz",
      "author_url": "",
      "post_date": "09/09/2012 22:10:26",
      "content": "<p>It's just the average amounts within the selected 75% (so it's not unitless like a proportio -- the units are the same as the original response variable, in this case dollars^1.15).</p>\r\n<p>Maybe a proportion would have been easier to understand. (And would be equivalent.)</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "14139": "",
    "14140": ""
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  "source": "meta"
}