{
  "id": 3585,
  "title": "Non-unique event_id's in events.csv",
  "url": "/competitions/event-recommendation-engine-challenge/discussion/3585",
  "author_name": "",
  "post_date": "2013-01-12T22:55:51.213Z",
  "votes": null,
  "comment_count": 7,
  "views": 2344,
  "content": "<p>Hi,</p>\r\n<p>Perhaps a silly question - I'm noticing that there are a few duplicated event_id values in events.csv. Is this expected?</p>\r\n<p>For example, I'm seeing two rows with event_id =&nbsp;21708470. You can find the two rows at lines&nbsp;1963021 and&nbsp;2704844 of events.csv (with the first, header, line being line 0).</p>\r\n<p>Thanks,</p>\r\n<p>Teebs</p>",
  "messages": [
    {
      "id": "19243",
      "postDate": "01/12/2013 22:55:51",
      "content": "<p>Hi,</p>\r\n<p>Perhaps a silly question - I'm noticing that there are a few duplicated event_id values in events.csv. Is this expected?</p>\r\n<p>For example, I'm seeing two rows with event_id =&nbsp;21708470. You can find the two rows at lines&nbsp;1963021 and&nbsp;2704844 of events.csv (with the first, header, line being line 0).</p>\r\n<p>Thanks,</p>\r\n<p>Teebs</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "19244",
      "postDate": "01/13/2013 00:15:33",
      "content": "<p>Hello Teebs,</p>\r\n<p>We are investigating this issue.</p>\r\n<p>Thanks,<br>\r\nevents4you</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "19245",
      "postDate": "01/13/2013 00:34:49",
      "content": "<p>Also, unless I'm misunderstanding the data, the event_attendees.csv file has user ids which are missing from the users.csv file.</p>\r\n<p>&nbsp;</p>\r\n<p>EDIT: &nbsp;Friends listed in user_friends.csv are also missing from users.csv.</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "19246",
      "postDate": "01/13/2013 01:14:18",
      "content": "<p>Hello Richard,</p>\r\n<p>This is by design. We only provided demographic data for a small number of users. The most important point is that all users in train.csv and test.csv are in users.csv.</p>\r\n<p>Thanks,<br>\r\nevents4you</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "19261",
      "postDate": "01/13/2013 11:54:26",
      "content": "<p>hi admin,</p>\r\n<p><span>I find another problem, in train.csv, event 480579258 was liked by user&nbsp;1654935837 ( the&nbsp;5719th line&nbsp;&nbsp;of train.csv),</span></p>\r\n<p><span>but in event_attendees.csv , we got &nbsp;480579258,,,, in line&nbsp;12908 which means no one have action on this event.</span></p>\r\n<p>Thanks,</p>\r\n<p>Kingsfield</p>\r\n<p>&nbsp;</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "19271",
      "postDate": "01/13/2013 18:59:58",
      "content": "<p>Hello Kingsfield,</p>\r\n<p>We have removed user-event pairs that appear in train.csv and test.csv from event_attendees.</p>\r\n<p>Thanks,<br>\r\nevents4you</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "19313",
      "postDate": "01/15/2013 02:50:12",
      "content": "<p>Hello,</p>\r\n<p>The offending rows from events.csv have been removed and now there are no non-unique IDs. This also required a slight change to event_attendees.csv, which has also been updated.</p>\r\n<p>Thanks,<br>\r\nevents4you</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "19750",
      "postDate": "01/28/2013 04:38:30",
      "content": "<p>I spent half the day today processing the old data because I did not see this update. It would be good for competitors (reducing frustration) - if you could post this information in a sticky topic. I will have to redo the processing as I see that around\r\n 1100 events have duplicates! :-)</p>",
      "rawMarkdown": "",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 19244,
      "author_name": "events4you",
      "author_url": "",
      "post_date": "01/13/2013 00:15:33",
      "content": "<p>Hello Teebs,</p>\r\n<p>We are investigating this issue.</p>\r\n<p>Thanks,<br>\r\nevents4you</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 19245,
      "author_name": "richardpospesel",
      "author_url": "",
      "post_date": "01/13/2013 00:34:49",
      "content": "<p>Also, unless I'm misunderstanding the data, the event_attendees.csv file has user ids which are missing from the users.csv file.</p>\r\n<p>&nbsp;</p>\r\n<p>EDIT: &nbsp;Friends listed in user_friends.csv are also missing from users.csv.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 19246,
      "author_name": "events4you",
      "author_url": "",
      "post_date": "01/13/2013 01:14:18",
      "content": "<p>Hello Richard,</p>\r\n<p>This is by design. We only provided demographic data for a small number of users. The most important point is that all users in train.csv and test.csv are in users.csv.</p>\r\n<p>Thanks,<br>\r\nevents4you</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 19261,
      "author_name": "kingsfield",
      "author_url": "",
      "post_date": "01/13/2013 11:54:26",
      "content": "<p>hi admin,</p>\r\n<p><span>I find another problem, in train.csv, event 480579258 was liked by user&nbsp;1654935837 ( the&nbsp;5719th line&nbsp;&nbsp;of train.csv),</span></p>\r\n<p><span>but in event_attendees.csv , we got &nbsp;480579258,,,, in line&nbsp;12908 which means no one have action on this event.</span></p>\r\n<p>Thanks,</p>\r\n<p>Kingsfield</p>\r\n<p>&nbsp;</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 19271,
      "author_name": "events4you",
      "author_url": "",
      "post_date": "01/13/2013 18:59:58",
      "content": "<p>Hello Kingsfield,</p>\r\n<p>We have removed user-event pairs that appear in train.csv and test.csv from event_attendees.</p>\r\n<p>Thanks,<br>\r\nevents4you</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 19313,
      "author_name": "events4you",
      "author_url": "",
      "post_date": "01/15/2013 02:50:12",
      "content": "<p>Hello,</p>\r\n<p>The offending rows from events.csv have been removed and now there are no non-unique IDs. This also required a slight change to event_attendees.csv, which has also been updated.</p>\r\n<p>Thanks,<br>\r\nevents4you</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 19750,
      "author_name": "tritonsd",
      "author_url": "",
      "post_date": "01/28/2013 04:38:30",
      "content": "<p>I spent half the day today processing the old data because I did not see this update. It would be good for competitors (reducing frustration) - if you could post this information in a sticky topic. I will have to redo the processing as I see that around\r\n 1100 events have duplicates! :-)</p>",
      "votes": null,
      "replies": []
    }
  ],
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