{
  "id": 59884,
  "title": "Number of Tracks",
  "url": "/competitions/trackml-particle-identification/discussion/59884",
  "author_name": "",
  "post_date": "2018-06-28T02:02:12.115105600Z",
  "votes": null,
  "comment_count": 1,
  "views": 0,
  "content": "<p>While reviewing the file \"event000001000-truth.csv\" I found 10566 unique particle ids. Is this number the amount of tracks a successful submission would have to match hits to for this event? In other words is there a one to one correspondence between particles and tracks?</p>",
  "messages": [
    {
      "id": "349304",
      "postDate": "06/28/2018 02:02:12",
      "content": "<p>While reviewing the file \"event000001000-truth.csv\" I found 10566 unique particle ids. Is this number the amount of tracks a successful submission would have to match hits to for this event? In other words is there a one to one correspondence between particles and tracks?</p>",
      "rawMarkdown": "While reviewing the file \"event000001000-truth.csv\" I found 10566 unique particle ids. Is this number the amount of tracks a successful submission would have to match hits to for this event? In other words is there a one to one correspondence between particles and tracks?",
      "votes": null
    },
    {
      "id": "349377",
      "postDate": "06/28/2018 03:39:08",
      "content": "<p>'track' in the context of this competition is the track a certain particle follows in the detector, so the ideal number of tracks is the same as the number of particles. </p>\n\n<p>The only difference is particle id 0 is a bin for outliers that don't actually belong in a track, although since your ideal solution would also have a bin for outliers, it should still be 1-to-1. </p>",
      "rawMarkdown": "'track' in the context of this competition is the track a certain particle follows in the detector, so the ideal number of tracks is the same as the number of particles. \n\nThe only difference is particle id 0 is a bin for outliers that don't actually belong in a track, although since your ideal solution would also have a bin for outliers, it should still be 1-to-1.",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 349377,
      "author_name": "macfarll",
      "author_url": "",
      "post_date": "06/28/2018 03:39:08",
      "content": "<p>'track' in the context of this competition is the track a certain particle follows in the detector, so the ideal number of tracks is the same as the number of particles. </p>\n\n<p>The only difference is particle id 0 is a bin for outliers that don't actually belong in a track, although since your ideal solution would also have a bin for outliers, it should still be 1-to-1. </p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "349304": "While reviewing the file \"event000001000-truth.csv\" I found 10566 unique particle ids. Is this number the amount of tracks a successful submission would have to match hits to for this event? In other words is there a one to one correspondence between particles and tracks?",
    "349377": "'track' in the context of this competition is the track a certain particle follows in the detector, so the ideal number of tracks is the same as the number of particles. \n\nThe only difference is particle id 0 is a bin for outliers that don't actually belong in a track, although since your ideal solution would also have a bin for outliers, it should still be 1-to-1."
  },
  "source": "meta"
}