{
  "id": 242818,
  "title": "collectionName Details",
  "url": "/competitions/google-smartphone-decimeter-challenge/discussion/242818",
  "author_name": "",
  "post_date": "2021-05-31T03:43:06.553153500Z",
  "votes": 12,
  "comment_count": 5,
  "views": 0,
  "content": "<p>I would like to know more details about collectionName in baseline_locations_train/test.csv.<br>\nExample: \"2020-05-15-US-MTV-1 \",\"2020-09-04-US-SF-2\"</p>\n<p>I think the first half is the measurement date.<br>\nWhat does the second half of the alphabet and the last number indicate?</p>\n<p>I'm sorry if I missed the explanation.</p>",
  "messages": [
    {
      "id": "1329312",
      "postDate": "05/31/2021 03:43:06",
      "content": "<p>I would like to know more details about collectionName in baseline_locations_train/test.csv.<br>\nExample: \"2020-05-15-US-MTV-1 \",\"2020-09-04-US-SF-2\"</p>\n<p>I think the first half is the measurement date.<br>\nWhat does the second half of the alphabet and the last number indicate?</p>\n<p>I'm sorry if I missed the explanation.</p>",
      "rawMarkdown": "I would like to know more details about collectionName in baseline_locations_train/test.csv.\nExample: \"2020-05-15-US-MTV-1 \",\"2020-09-04-US-SF-2\"\n\nI think the first half is the measurement date.\nWhat does the second half of the alphabet and the last number indicate?\n\nI'm sorry if I missed the explanation.",
      "votes": null
    },
    {
      "id": "1329870",
      "postDate": "05/31/2021 12:38:01",
      "content": "<p>The letters are a description of the country/city it was taken - so US is United States, and then SF is San Francisco, MTV is Mountain View, SJC is San Jose, etc. </p>\n<p>The number I think is just a count for collections on the same day; so in your example, the -2 means it was the 2nd collection for that day.</p>\n<p>(I don't think that was documented anywhere, it's just what I picked up on)</p>",
      "rawMarkdown": "The letters are a description of the country/city it was taken - so US is United States, and then SF is San Francisco, MTV is Mountain View, SJC is San Jose, etc. \n\nThe number I think is just a count for collections on the same day; so in your example, the -2 means it was the 2nd collection for that day.\n\n(I don't think that was documented anywhere, it's just what I picked up on)",
      "votes": null
    },
    {
      "id": "1329890",
      "postDate": "05/31/2021 12:56:18",
      "content": "<p>Thanks <a href=\"https://www.kaggle.com/chris62\" target=\"_blank\">@chris62</a> </p>\n<p>The alphabet is the name of a city!<br>\nI thought SF might be San Francisco, but I had no idea about the others.<br>\n（I even thought that it might be the type of car lol）</p>\n<p>Also, I agree with you about the numbers.</p>",
      "rawMarkdown": "Thanks @chris62 \n\nThe alphabet is the name of a city!\nI thought SF might be San Francisco, but I had no idea about the others.\n（I even thought that it might be the type of car lol）\n\nAlso, I agree with you about the numbers.",
      "votes": null
    },
    {
      "id": "1330528",
      "postDate": "05/31/2021 23:40:29",
      "content": "<p>This is mentioned in Page 5 of the dataset paper (Page 1529 in the document) found here: <a href=\"https://www.kaggle.com/google/android-smartphones-high-accuracy-datasets?select=ION+GNSS+2020+Android+Raw+GNSS+Measurement+Datasets+for+Precise+Positioning.pdf\" target=\"_blank\">https://www.kaggle.com/google/android-smartphones-high-accuracy-datasets?select=ION+GNSS+2020+Android+Raw+GNSS+Measurement+Datasets+for+Precise+Positioning.pdf</a></p>\n<p>YYYY-MM-DD-{Country code in 2 letters}-{Region}-{Collection index}</p>",
      "rawMarkdown": "This is mentioned in Page 5 of the dataset paper (Page 1529 in the document) found here: https://www.kaggle.com/google/android-smartphones-high-accuracy-datasets?select=ION+GNSS+2020+Android+Raw+GNSS+Measurement+Datasets+for+Precise+Positioning.pdf\n \nYYYY-MM-DD-{Country code in 2 letters}-{Region}-{Collection index}",
      "votes": null
    },
    {
      "id": "1331794",
      "postDate": "06/01/2021 18:12:13",
      "content": "<p>Thanks <a href=\"https://www.kaggle.com/subhankarhalder\" target=\"_blank\">@subhankarhalder</a> <br>\nit's mentioned in the paper.(Page is 1929, right?)</p>\n<p><a href=\"https://storage.googleapis.com/kagglesdsdata/datasets/1053560/1772786/ION%20GNSS%202020%20Android%20Raw%20GNSS%20Measurement%20Datasets%20for%20Precise%20Positioning.pdf?X-Goog-Algorithm=GOOG4-RSA-SHA256&amp;X-Goog-Credential=gcp-kaggle-com%40kaggle-161607.iam.gserviceaccount.com%2F20210601%2Fauto%2Fstorage%2Fgoog4_request&amp;X-Goog-Date=20210601T180606Z&amp;X-Goog-Expires=259199&amp;X-Goog-SignedHeaders=host&amp;X-Goog-Signature=199683841d4ef9aafe46567b1e001e1162a2b9641983a7fa2e7d703f5e23b8a1e2398228a5e6eb299398d65249dc7377dbccdd9ca2b2449acb8634af0a5738d3a50bdc6cdf2157fbbf834b1ad2242fbcdc8f0122a5b7ec048f3eefe75fa59c71247e833ff7654e21fdf829f57399da7715c33dd07c1488b928c458099c73018458fc9204667217389d3ebf701f57479971738851a72b33dc49dda7668fa3f7551718cf50dac3753fb2803c68aeeec59925a57ae65e0d483d19cd84bde5f90aafe8b3381ed59818efa8559011b4c7f185d413db730d2aacc1fda35a09ac236783fb8ee2b36ae301cc56fd63fcbaae1dd65509d576fd53bcaa3e20472ccf5c2627\" target=\"_blank\">https://storage.googleapis.com/kagglesdsdata/datasets/1053560/1772786/ION%20GNSS%202020%20Android%20Raw%20GNSS%20Measurement%20Datasets%20for%20Precise%20Positioning.pdf?X-Goog-Algorithm=GOOG4-RSA-SHA256&amp;X-Goog-Credential=gcp-kaggle-com%40kaggle-161607.iam.gserviceaccount.com%2F20210601%2Fauto%2Fstorage%2Fgoog4_request&amp;X-Goog-Date=20210601T180606Z&amp;X-Goog-Expires=259199&amp;X-Goog-SignedHeaders=host&amp;X-Goog-Signature=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</a></p>",
      "rawMarkdown": "Thanks @subhankarhalder \nit's mentioned in the paper.(Page is 1929, right?)\n\nhttps://storage.googleapis.com/kagglesdsdata/datasets/1053560/1772786/ION%20GNSS%202020%20Android%20Raw%20GNSS%20Measurement%20Datasets%20for%20Precise%20Positioning.pdf?X-Goog-Algorithm=GOOG4-RSA-SHA256&X-Goog-Credential=gcp-kaggle-com%40kaggle-161607.iam.gserviceaccount.com%2F20210601%2Fauto%2Fstorage%2Fgoog4_request&X-Goog-Date=20210601T180606Z&X-Goog-Expires=259199&X-Goog-SignedHeaders=host&X-Goog-Signature=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",
      "votes": null
    },
    {
      "id": "1332182",
      "postDate": "06/02/2021 00:45:06",
      "content": "<p><a href=\"https://www.kaggle.com/dehokanta\" target=\"_blank\">@dehokanta</a> Yes, typo from my side. Sorry 😄</p>",
      "rawMarkdown": "dehokanta Yes, typo from my side. Sorry 😄",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 1329870,
      "author_name": "chris62",
      "author_url": "",
      "post_date": "05/31/2021 12:38:01",
      "content": "<p>The letters are a description of the country/city it was taken - so US is United States, and then SF is San Francisco, MTV is Mountain View, SJC is San Jose, etc. </p>\n<p>The number I think is just a count for collections on the same day; so in your example, the -2 means it was the 2nd collection for that day.</p>\n<p>(I don't think that was documented anywhere, it's just what I picked up on)</p>",
      "votes": null,
      "replies": [
        {
          "id": 1329890,
          "author_name": "dehokanta",
          "author_url": "",
          "post_date": "05/31/2021 12:56:18",
          "content": "<p>Thanks <a href=\"https://www.kaggle.com/chris62\" target=\"_blank\">@chris62</a> </p>\n<p>The alphabet is the name of a city!<br>\nI thought SF might be San Francisco, but I had no idea about the others.<br>\n（I even thought that it might be the type of car lol）</p>\n<p>Also, I agree with you about the numbers.</p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 1330528,
          "author_name": "subhankarhalder",
          "author_url": "",
          "post_date": "05/31/2021 23:40:29",
          "content": "<p>This is mentioned in Page 5 of the dataset paper (Page 1529 in the document) found here: <a href=\"https://www.kaggle.com/google/android-smartphones-high-accuracy-datasets?select=ION+GNSS+2020+Android+Raw+GNSS+Measurement+Datasets+for+Precise+Positioning.pdf\" target=\"_blank\">https://www.kaggle.com/google/android-smartphones-high-accuracy-datasets?select=ION+GNSS+2020+Android+Raw+GNSS+Measurement+Datasets+for+Precise+Positioning.pdf</a></p>\n<p>YYYY-MM-DD-{Country code in 2 letters}-{Region}-{Collection index}</p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 1331794,
          "author_name": "dehokanta",
          "author_url": "",
          "post_date": "06/01/2021 18:12:13",
          "content": "<p>Thanks <a href=\"https://www.kaggle.com/subhankarhalder\" target=\"_blank\">@subhankarhalder</a> <br>\nit's mentioned in the paper.(Page is 1929, right?)</p>\n<p><a href=\"https://storage.googleapis.com/kagglesdsdata/datasets/1053560/1772786/ION%20GNSS%202020%20Android%20Raw%20GNSS%20Measurement%20Datasets%20for%20Precise%20Positioning.pdf?X-Goog-Algorithm=GOOG4-RSA-SHA256&amp;X-Goog-Credential=gcp-kaggle-com%40kaggle-161607.iam.gserviceaccount.com%2F20210601%2Fauto%2Fstorage%2Fgoog4_request&amp;X-Goog-Date=20210601T180606Z&amp;X-Goog-Expires=259199&amp;X-Goog-SignedHeaders=host&amp;X-Goog-Signature=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\" target=\"_blank\">https://storage.googleapis.com/kagglesdsdata/datasets/1053560/1772786/ION%20GNSS%202020%20Android%20Raw%20GNSS%20Measurement%20Datasets%20for%20Precise%20Positioning.pdf?X-Goog-Algorithm=GOOG4-RSA-SHA256&amp;X-Goog-Credential=gcp-kaggle-com%40kaggle-161607.iam.gserviceaccount.com%2F20210601%2Fauto%2Fstorage%2Fgoog4_request&amp;X-Goog-Date=20210601T180606Z&amp;X-Goog-Expires=259199&amp;X-Goog-SignedHeaders=host&amp;X-Goog-Signature=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</a></p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 1332182,
          "author_name": "subhankarhalder",
          "author_url": "",
          "post_date": "06/02/2021 00:45:06",
          "content": "<p><a href=\"https://www.kaggle.com/dehokanta\" target=\"_blank\">@dehokanta</a> Yes, typo from my side. Sorry 😄</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "1329312": "I would like to know more details about collectionName in baseline_locations_train/test.csv.\nExample: \"2020-05-15-US-MTV-1 \",\"2020-09-04-US-SF-2\"\n\nI think the first half is the measurement date.\nWhat does the second half of the alphabet and the last number indicate?\n\nI'm sorry if I missed the explanation.",
    "1329870": "The letters are a description of the country/city it was taken - so US is United States, and then SF is San Francisco, MTV is Mountain View, SJC is San Jose, etc. \n\nThe number I think is just a count for collections on the same day; so in your example, the -2 means it was the 2nd collection for that day.\n\n(I don't think that was documented anywhere, it's just what I picked up on)",
    "1329890": "Thanks @chris62 \n\nThe alphabet is the name of a city!\nI thought SF might be San Francisco, but I had no idea about the others.\n（I even thought that it might be the type of car lol）\n\nAlso, I agree with you about the numbers.",
    "1330528": "This is mentioned in Page 5 of the dataset paper (Page 1529 in the document) found here: https://www.kaggle.com/google/android-smartphones-high-accuracy-datasets?select=ION+GNSS+2020+Android+Raw+GNSS+Measurement+Datasets+for+Precise+Positioning.pdf\n \nYYYY-MM-DD-{Country code in 2 letters}-{Region}-{Collection index}",
    "1331794": "Thanks @subhankarhalder \nit's mentioned in the paper.(Page is 1929, right?)\n\nhttps://storage.googleapis.com/kagglesdsdata/datasets/1053560/1772786/ION%20GNSS%202020%20Android%20Raw%20GNSS%20Measurement%20Datasets%20for%20Precise%20Positioning.pdf?X-Goog-Algorithm=GOOG4-RSA-SHA256&X-Goog-Credential=gcp-kaggle-com%40kaggle-161607.iam.gserviceaccount.com%2F20210601%2Fauto%2Fstorage%2Fgoog4_request&X-Goog-Date=20210601T180606Z&X-Goog-Expires=259199&X-Goog-SignedHeaders=host&X-Goog-Signature=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",
    "1332182": "dehokanta Yes, typo from my side. Sorry 😄"
  },
  "source": "meta"
}