{
  "id": 11000,
  "title": "Dataset Description",
  "url": "/competitions/avazu-ctr-prediction/discussion/11000",
  "author_name": "",
  "post_date": "2014-11-20T23:17:32.723Z",
  "votes": 1,
  "comment_count": 5,
  "views": 4108,
  "content": "<p>&nbsp;Hello admin,</p>\n<p>Could you please elaborate more on the data set.&nbsp;</p>\n<p>I'm having difficulty understanding various columns.&nbsp;</p>\n<p>1. Especially what you mean by anonymized categorical value ?</p>\n<p>2. Columns starting with site? Do they refer to the link to which the user would be directed by clicking on the particular add ?</p>\n<p>3. Similarly app and device.</p>",
  "messages": [
    {
      "id": "58580",
      "postDate": "11/20/2014 23:17:32",
      "content": "<p>&nbsp;Hello admin,</p>\n<p>Could you please elaborate more on the data set.&nbsp;</p>\n<p>I'm having difficulty understanding various columns.&nbsp;</p>\n<p>1. Especially what you mean by anonymized categorical value ?</p>\n<p>2. Columns starting with site? Do they refer to the link to which the user would be directed by clicking on the particular add ?</p>\n<p>3. Similarly app and device.</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "58633",
      "postDate": "11/21/2014 20:15:33",
      "content": "<p>I would be curious as well (for more general information than usefulness in this competition), perhaps someone in this industry can comment. My guess is along the same lines you suggest that 'Site' is the advertiser or site destination of the url, 'Device' is somehow a description of the type of mobile device the ad is being seen on and 'app' is maybe the application running on the device where the ad is being seen (e.g. a game or news app)?</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "58649",
      "postDate": "11/21/2014 22:17:28",
      "content": "<p>Here's an example of a&nbsp;back-end where you can buy advertising. Notice you can advertise on Sites or Apps (in the Domain column). The 'Category' tends to be general. On the bottom, you can see different ad dimensions and the position on the page.</p>\n<p>The device type is probably&nbsp;iOS, Android, BlackBerry, etc. The Device Connection Type is probably whether they were on Wifi or cell.&nbsp;</p>\n<p><img src=\"http://i.imgur.com/heD7JdZ.png\" alt width=\"795\" height=\"426\"></p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "58675",
      "postDate": "11/22/2014 08:39:07",
      "content": "<p>[quote=inversion;58649]</p>\n<p>Here's an example of a&nbsp;back-end where you can buy advertising. Notice you can advertise on Sites or Apps (in the Domain column). The 'Category' tends to be general. On the bottom, you can see different ad dimensions and the position on the page.</p>\n<p>The device type is probably&nbsp;iOS, Android, BlackBerry, etc. The Device Connection Type is probably whether they were on Wifi or cell.&nbsp;</p>\n<p>[/quote]</p>\n<p>awesome!</p>\n<p>as you may notice, column C15 and C16 are the dimensions of the ad. there are 11 possible combinations of those 2 columns, and they are all listed here:</p>\n<p>https://support.google.com/adsense/answer/68727?hl=en</p>\n<p>the ratios from the file and this image seem to match up approximately. ie, the ads are mostly 320x50.</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "58746",
      "postDate": "11/23/2014 21:21:14",
      "content": "<p>Great observations! For those characteristic study (ad sizes, positions and etc. ), there are lots of A/B testing conducted to understand the impacts. Another thread discussed this topic:</p>\n<p>http://www.kaggle.com/c/avazu-ctr-prediction/forums/t/10930/while-the-competition-is-on-hold-a-b-testing-question</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "59058",
      "postDate": "11/26/2014 23:03:26",
      "content": "<p>anyone else think C21 and C20 (n/a or&nbsp;transparent when -1, subtract 100000 otherwise) could&nbsp;potentially be pixel color values?&nbsp;</p>",
      "rawMarkdown": "",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 58633,
      "author_name": "inspector",
      "author_url": "",
      "post_date": "11/21/2014 20:15:33",
      "content": "<p>I would be curious as well (for more general information than usefulness in this competition), perhaps someone in this industry can comment. My guess is along the same lines you suggest that 'Site' is the advertiser or site destination of the url, 'Device' is somehow a description of the type of mobile device the ad is being seen on and 'app' is maybe the application running on the device where the ad is being seen (e.g. a game or news app)?</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 58649,
      "author_name": "inversion",
      "author_url": "",
      "post_date": "11/21/2014 22:17:28",
      "content": "<p>Here's an example of a&nbsp;back-end where you can buy advertising. Notice you can advertise on Sites or Apps (in the Domain column). The 'Category' tends to be general. On the bottom, you can see different ad dimensions and the position on the page.</p>\n<p>The device type is probably&nbsp;iOS, Android, BlackBerry, etc. The Device Connection Type is probably whether they were on Wifi or cell.&nbsp;</p>\n<p><img src=\"http://i.imgur.com/heD7JdZ.png\" alt width=\"795\" height=\"426\"></p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 58675,
      "author_name": "vvarkey",
      "author_url": "",
      "post_date": "11/22/2014 08:39:07",
      "content": "<p>[quote=inversion;58649]</p>\n<p>Here's an example of a&nbsp;back-end where you can buy advertising. Notice you can advertise on Sites or Apps (in the Domain column). The 'Category' tends to be general. On the bottom, you can see different ad dimensions and the position on the page.</p>\n<p>The device type is probably&nbsp;iOS, Android, BlackBerry, etc. The Device Connection Type is probably whether they were on Wifi or cell.&nbsp;</p>\n<p>[/quote]</p>\n<p>awesome!</p>\n<p>as you may notice, column C15 and C16 are the dimensions of the ad. there are 11 possible combinations of those 2 columns, and they are all listed here:</p>\n<p>https://support.google.com/adsense/answer/68727?hl=en</p>\n<p>the ratios from the file and this image seem to match up approximately. ie, the ads are mostly 320x50.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 58746,
      "author_name": "simengy82",
      "author_url": "",
      "post_date": "11/23/2014 21:21:14",
      "content": "<p>Great observations! For those characteristic study (ad sizes, positions and etc. ), there are lots of A/B testing conducted to understand the impacts. Another thread discussed this topic:</p>\n<p>http://www.kaggle.com/c/avazu-ctr-prediction/forums/t/10930/while-the-competition-is-on-hold-a-b-testing-question</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 59058,
      "author_name": "ashhafez",
      "author_url": "",
      "post_date": "11/26/2014 23:03:26",
      "content": "<p>anyone else think C21 and C20 (n/a or&nbsp;transparent when -1, subtract 100000 otherwise) could&nbsp;potentially be pixel color values?&nbsp;</p>",
      "votes": null,
      "replies": []
    }
  ],
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