{
  "id": 6018,
  "title": "COMP*_ columns and range for IDs",
  "url": "/competitions/expedia-personalized-sort/discussion/6018",
  "author_name": "",
  "post_date": "2013-10-12T15:40:54.773Z",
  "votes": null,
  "comment_count": 3,
  "views": 1237,
  "content": "<p>Hello,</p>\n<p>Is this true, that for every row, columns starting with COMP1_* are related to the competing company X, while COMP2_* for company Y and so on? Or, is it mixed some way across the data?</p>\n<p><span style=\"line-height: 1.4\">Secondly, are the values from PROP_COUNTRY_ID, DESTINATION_COUNTRY_ID and VISITOR_LOCATION_COUNTRY_ID coming from the same dictionary? Simply, does&nbsp;</span><span style=\"line-height: 1.4\">VISITOR_LOCATION_COUNTRY_ID=</span><span style=\"line-height: 1.4\">DESTINATION_COUNTRY_ID means, that this is a domestic trip?</span></p>\n<p><span style=\"line-height: 1.4\">Last, if we find the same PROP_ID both in the testing and training data, does it mean, that it is the same property?</span></p>\n<p><span style=\"line-height: 1.4\">EDIT: and hopefully, the last question - are there any observations sorted by the &quot;random rank&quot; in the testing dataset as well?</span></p>\n<p><span style=\"line-height: 1.4\">Regards,<br>Bogdan</span></p>\n<p>&nbsp;</p>\n<p>&nbsp;</p>\n<p>&nbsp;</p>",
  "messages": [
    {
      "id": "32294",
      "postDate": "10/12/2013 15:40:54",
      "content": "<p>Hello,</p>\n<p>Is this true, that for every row, columns starting with COMP1_* are related to the competing company X, while COMP2_* for company Y and so on? Or, is it mixed some way across the data?</p>\n<p><span style=\"line-height: 1.4\">Secondly, are the values from PROP_COUNTRY_ID, DESTINATION_COUNTRY_ID and VISITOR_LOCATION_COUNTRY_ID coming from the same dictionary? Simply, does&nbsp;</span><span style=\"line-height: 1.4\">VISITOR_LOCATION_COUNTRY_ID=</span><span style=\"line-height: 1.4\">DESTINATION_COUNTRY_ID means, that this is a domestic trip?</span></p>\n<p><span style=\"line-height: 1.4\">Last, if we find the same PROP_ID both in the testing and training data, does it mean, that it is the same property?</span></p>\n<p><span style=\"line-height: 1.4\">EDIT: and hopefully, the last question - are there any observations sorted by the &quot;random rank&quot; in the testing dataset as well?</span></p>\n<p><span style=\"line-height: 1.4\">Regards,<br>Bogdan</span></p>\n<p>&nbsp;</p>\n<p>&nbsp;</p>\n<p>&nbsp;</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "32305",
      "postDate": "10/13/2013 11:44:13",
      "content": "<p>1. The comX_* variables are related to competitor X, comY_* are related to competitor Y, etc.</p>\n<p>2. There is no column DESTINATION_COUNTRY_ID. There is column SRCH_DESTINATION_ID which usually is at a city level, but can be more or less specific. The PROP_COUNTRY_ID and VISITOR_LOCATION_COUNTRY_ID columns are comparable.</p>\n<p>3. Yes.</p>\n<p>4. Evey impression in the testing data is randomly sorted.</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "32310",
      "postDate": "10/13/2013 15:32:36",
      "content": "<p>Hi Adam,</p>\n<p>&nbsp;</p>\n<p>The way I'm reading your response to #4 I would expect RANDOM_BOOL to be 0 in the entire test set, but that's not what I see in the data. &nbsp;I must be misunderstanding something? &nbsp;Thanks</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "32313",
      "postDate": "10/13/2013 17:48:45",
      "content": "<p>Sorry, I was not clear. The testing data contains both random and non-random impressions. What is random is the order of hotels--entries per impression as given in the test file (so that you cannot assume that e.g. the first entry in a given impression was displayed in the first position).</p>",
      "rawMarkdown": "",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 32305,
      "author_name": "adamwoz",
      "author_url": "",
      "post_date": "10/13/2013 11:44:13",
      "content": "<p>1. The comX_* variables are related to competitor X, comY_* are related to competitor Y, etc.</p>\n<p>2. There is no column DESTINATION_COUNTRY_ID. There is column SRCH_DESTINATION_ID which usually is at a city level, but can be more or less specific. The PROP_COUNTRY_ID and VISITOR_LOCATION_COUNTRY_ID columns are comparable.</p>\n<p>3. Yes.</p>\n<p>4. Evey impression in the testing data is randomly sorted.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 32310,
      "author_name": "bensolucky",
      "author_url": "",
      "post_date": "10/13/2013 15:32:36",
      "content": "<p>Hi Adam,</p>\n<p>&nbsp;</p>\n<p>The way I'm reading your response to #4 I would expect RANDOM_BOOL to be 0 in the entire test set, but that's not what I see in the data. &nbsp;I must be misunderstanding something? &nbsp;Thanks</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 32313,
      "author_name": "adamwoz",
      "author_url": "",
      "post_date": "10/13/2013 17:48:45",
      "content": "<p>Sorry, I was not clear. The testing data contains both random and non-random impressions. What is random is the order of hotels--entries per impression as given in the test file (so that you cannot assume that e.g. the first entry in a given impression was displayed in the first position).</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "32294": "",
    "32305": "",
    "32310": "",
    "32313": ""
  },
  "source": "meta"
}