{
  "id": 217767,
  "title": "timestamp of TYPE_WAYPOINT",
  "url": "/competitions/indoor-location-navigation/discussion/217767",
  "author_name": "ONODERA",
  "post_date": "2021-02-08T10:36:22.868000",
  "votes": 23,
  "comment_count": 0,
  "views": 0,
  "content": "<p>The file <code>train/5cd969c839e2fc0b4afe7ff1/F5/5d0b3a544a58160008d75e26.txt</code> is something wrong.<br>\nI think we already know the timestamp of TYPE_WAYPOINT is not sorted, but in this case I'm not talking about that.<br>\nPlease take a look below</p>\n<pre><code>1561016232209    TYPE_ACCELEROMETER  0.13639832  0.18185425  8.910873\n1561016232209    TYPE_MAGNETIC_FIELD 35.399998   23.039999   -21.66\n1561016232209    TYPE_GYROSCOPE  0.040527344 0.09063721  0.055648804\n1561016232209    TYPE_ROTATION_VECTOR    -0.027541647    0.0071000345    0.49443698\n1561016232209    TYPE_MAGNETIC_FIELD_UNCALIBRATED    93.95999    0.6000004   -83.1\n1561016232209    TYPE_GYROSCOPE_UNCALIBRATED 0.08062744  0.16647339  0.006713867\n1561016232209    TYPE_ACCELEROMETER_UNCALIBRATED 0.08135986  0.25483704  8.634506\n1561016237498    TYPE_WAYPOINT   112.98476   85.69683\n1561016232228    TYPE_ACCELEROMETER  0.34576416  0.0047912598    9.602402\n1561016232228    TYPE_MAGNETIC_FIELD 35.46   22.859999   -21.779999\n1561016232228    TYPE_GYROSCOPE  0.06037903  -0.015655518    0.05290222\n1561016232228    TYPE_ROTATION_VECTOR    -0.027731808    0.008498736 0.49474692\n1561016232228    TYPE_MAGNETIC_FIELD_UNCALIBRATED    94.02   0.42000008  -83.22\n1561016232228    TYPE_GYROSCOPE_UNCALIBRATED 0.06199646  -0.016479492    0.050079346\n1561016232228    TYPE_ACCELEROMETER_UNCALIBRATED 0.19621277  0.105285645 9.227921\n</code></pre>\n<p>The timestamp of TYPE_WAYPOINT is <strong>1561016237498</strong>, x is <strong>112.98476</strong>, y is <strong>85.69683</strong>.</p>\n<pre><code>1561016236943    TYPE_ACCELEROMETER  -0.2093811  -1.0468597  10.1814575\n1561016236943    TYPE_MAGNETIC_FIELD 37.86   -3.0    -13.259999\n1561016236943    TYPE_GYROSCOPE  -0.26948547 0.13064575  -0.31330872\n1561016236943    TYPE_ROTATION_VECTOR    0.03094511  0.04407495  0.58877873\n1561016236943    TYPE_MAGNETIC_FIELD_UNCALIBRATED    96.42   -25.439999  -74.7\n1561016236943    TYPE_GYROSCOPE_UNCALIBRATED -0.26786804 0.12982178  -0.3161316\n1561016236943    TYPE_ACCELEROMETER_UNCALIBRATED -0.16511536 -1.1114655  10.063019\n1561016244541    TYPE_WAYPOINT   106.056755  86.47471\n#    endTime:1561016244703\n</code></pre>\n<p>And the next timestamp of TYPE_WAYPOINT is <strong>1561016244541</strong>, x is <strong>106.056755</strong>, y is <strong>86.47471</strong>.<br>\nThat means if timestamp is correct and sorted by timestamp, this smartphone was carried <strong>without any gyro and acceleration information</strong>.<br>\nFollowing is the sorted lines with timestamp.</p>\n<pre><code>1561016236943    TYPE_ACCELEROMETER  -0.2093811  -1.0468597  10.1814575\n1561016236943    TYPE_MAGNETIC_FIELD 37.86   -3.0    -13.259999\n1561016236943    TYPE_GYROSCOPE  -0.26948547 0.13064575  -0.31330872\n1561016236943    TYPE_ROTATION_VECTOR    0.03094511  0.04407495  0.58877873\n1561016236943    TYPE_MAGNETIC_FIELD_UNCALIBRATED    96.42   -25.439999  -74.7\n1561016236943    TYPE_GYROSCOPE_UNCALIBRATED -0.26786804 0.12982178  -0.3161316\n1561016236943    TYPE_ACCELEROMETER_UNCALIBRATED -0.16511536 -1.1114655  10.063019\n1561016237498    TYPE_WAYPOINT   112.98476   85.69683\n1561016244541    TYPE_WAYPOINT   106.056755  86.47471\n#    endTime:1561016244703\n</code></pre>\n<p>What do you think? <a href=\"https://www.kaggle.com/yuanchaoshu\" target=\"_blank\">@yuanchaoshu</a> </p>",
  "messages": [
    {
      "id": 1191229,
      "postDate": "2021-02-08T10:36:22.870Z",
      "content": "<p>The file <code>train/5cd969c839e2fc0b4afe7ff1/F5/5d0b3a544a58160008d75e26.txt</code> is something wrong.<br>\nI think we already know the timestamp of TYPE_WAYPOINT is not sorted, but in this case I'm not talking about that.<br>\nPlease take a look below</p>\n<pre><code>1561016232209    TYPE_ACCELEROMETER  0.13639832  0.18185425  8.910873\n1561016232209    TYPE_MAGNETIC_FIELD 35.399998   23.039999   -21.66\n1561016232209    TYPE_GYROSCOPE  0.040527344 0.09063721  0.055648804\n1561016232209    TYPE_ROTATION_VECTOR    -0.027541647    0.0071000345    0.49443698\n1561016232209    TYPE_MAGNETIC_FIELD_UNCALIBRATED    93.95999    0.6000004   -83.1\n1561016232209    TYPE_GYROSCOPE_UNCALIBRATED 0.08062744  0.16647339  0.006713867\n1561016232209    TYPE_ACCELEROMETER_UNCALIBRATED 0.08135986  0.25483704  8.634506\n1561016237498    TYPE_WAYPOINT   112.98476   85.69683\n1561016232228    TYPE_ACCELEROMETER  0.34576416  0.0047912598    9.602402\n1561016232228    TYPE_MAGNETIC_FIELD 35.46   22.859999   -21.779999\n1561016232228    TYPE_GYROSCOPE  0.06037903  -0.015655518    0.05290222\n1561016232228    TYPE_ROTATION_VECTOR    -0.027731808    0.008498736 0.49474692\n1561016232228    TYPE_MAGNETIC_FIELD_UNCALIBRATED    94.02   0.42000008  -83.22\n1561016232228    TYPE_GYROSCOPE_UNCALIBRATED 0.06199646  -0.016479492    0.050079346\n1561016232228    TYPE_ACCELEROMETER_UNCALIBRATED 0.19621277  0.105285645 9.227921\n</code></pre>\n<p>The timestamp of TYPE_WAYPOINT is <strong>1561016237498</strong>, x is <strong>112.98476</strong>, y is <strong>85.69683</strong>.</p>\n<pre><code>1561016236943    TYPE_ACCELEROMETER  -0.2093811  -1.0468597  10.1814575\n1561016236943    TYPE_MAGNETIC_FIELD 37.86   -3.0    -13.259999\n1561016236943    TYPE_GYROSCOPE  -0.26948547 0.13064575  -0.31330872\n1561016236943    TYPE_ROTATION_VECTOR    0.03094511  0.04407495  0.58877873\n1561016236943    TYPE_MAGNETIC_FIELD_UNCALIBRATED    96.42   -25.439999  -74.7\n1561016236943    TYPE_GYROSCOPE_UNCALIBRATED -0.26786804 0.12982178  -0.3161316\n1561016236943    TYPE_ACCELEROMETER_UNCALIBRATED -0.16511536 -1.1114655  10.063019\n1561016244541    TYPE_WAYPOINT   106.056755  86.47471\n#    endTime:1561016244703\n</code></pre>\n<p>And the next timestamp of TYPE_WAYPOINT is <strong>1561016244541</strong>, x is <strong>106.056755</strong>, y is <strong>86.47471</strong>.<br>\nThat means if timestamp is correct and sorted by timestamp, this smartphone was carried <strong>without any gyro and acceleration information</strong>.<br>\nFollowing is the sorted lines with timestamp.</p>\n<pre><code>1561016236943    TYPE_ACCELEROMETER  -0.2093811  -1.0468597  10.1814575\n1561016236943    TYPE_MAGNETIC_FIELD 37.86   -3.0    -13.259999\n1561016236943    TYPE_GYROSCOPE  -0.26948547 0.13064575  -0.31330872\n1561016236943    TYPE_ROTATION_VECTOR    0.03094511  0.04407495  0.58877873\n1561016236943    TYPE_MAGNETIC_FIELD_UNCALIBRATED    96.42   -25.439999  -74.7\n1561016236943    TYPE_GYROSCOPE_UNCALIBRATED -0.26786804 0.12982178  -0.3161316\n1561016236943    TYPE_ACCELEROMETER_UNCALIBRATED -0.16511536 -1.1114655  10.063019\n1561016237498    TYPE_WAYPOINT   112.98476   85.69683\n1561016244541    TYPE_WAYPOINT   106.056755  86.47471\n#    endTime:1561016244703\n</code></pre>\n<p>What do you think? <a href=\"https://www.kaggle.com/yuanchaoshu\" target=\"_blank\">@yuanchaoshu</a> </p>",
      "rawMarkdown": "The file `train/5cd969c839e2fc0b4afe7ff1/F5/5d0b3a544a58160008d75e26.txt` is something wrong.\nI think we already know the timestamp of TYPE_WAYPOINT is not sorted, but in this case I'm not talking about that.\nPlease take a look below\n\n```\n1561016232209\tTYPE_ACCELEROMETER\t0.13639832\t0.18185425\t8.910873\n1561016232209\tTYPE_MAGNETIC_FIELD\t35.399998\t23.039999\t-21.66\n1561016232209\tTYPE_GYROSCOPE\t0.040527344\t0.09063721\t0.055648804\n1561016232209\tTYPE_ROTATION_VECTOR\t-0.027541647\t0.0071000345\t0.49443698\n1561016232209\tTYPE_MAGNETIC_FIELD_UNCALIBRATED\t93.95999\t0.6000004\t-83.1\n1561016232209\tTYPE_GYROSCOPE_UNCALIBRATED\t0.08062744\t0.16647339\t0.006713867\n1561016232209\tTYPE_ACCELEROMETER_UNCALIBRATED\t0.08135986\t0.25483704\t8.634506\n1561016237498\tTYPE_WAYPOINT\t112.98476\t85.69683\n1561016232228\tTYPE_ACCELEROMETER\t0.34576416\t0.0047912598\t9.602402\n1561016232228\tTYPE_MAGNETIC_FIELD\t35.46\t22.859999\t-21.779999\n1561016232228\tTYPE_GYROSCOPE\t0.06037903\t-0.015655518\t0.05290222\n1561016232228\tTYPE_ROTATION_VECTOR\t-0.027731808\t0.008498736\t0.49474692\n1561016232228\tTYPE_MAGNETIC_FIELD_UNCALIBRATED\t94.02\t0.42000008\t-83.22\n1561016232228\tTYPE_GYROSCOPE_UNCALIBRATED\t0.06199646\t-0.016479492\t0.050079346\n1561016232228\tTYPE_ACCELEROMETER_UNCALIBRATED\t0.19621277\t0.105285645\t9.227921\n\n```\n\nThe timestamp of TYPE_WAYPOINT is **1561016237498**, x is **112.98476**, y is **85.69683**.\n\n```\n1561016236943\tTYPE_ACCELEROMETER\t-0.2093811\t-1.0468597\t10.1814575\n1561016236943\tTYPE_MAGNETIC_FIELD\t37.86\t-3.0\t-13.259999\n1561016236943\tTYPE_GYROSCOPE\t-0.26948547\t0.13064575\t-0.31330872\n1561016236943\tTYPE_ROTATION_VECTOR\t0.03094511\t0.04407495\t0.58877873\n1561016236943\tTYPE_MAGNETIC_FIELD_UNCALIBRATED\t96.42\t-25.439999\t-74.7\n1561016236943\tTYPE_GYROSCOPE_UNCALIBRATED\t-0.26786804\t0.12982178\t-0.3161316\n1561016236943\tTYPE_ACCELEROMETER_UNCALIBRATED\t-0.16511536\t-1.1114655\t10.063019\n1561016244541\tTYPE_WAYPOINT\t106.056755\t86.47471\n#\tendTime:1561016244703\n```\n\nAnd the next timestamp of TYPE_WAYPOINT is **1561016244541**, x is **106.056755**, y is **86.47471**.\nThat means if timestamp is correct and sorted by timestamp, this smartphone was carried **without any gyro and acceleration information**.\nFollowing is the sorted lines with timestamp.\n```\n1561016236943\tTYPE_ACCELEROMETER\t-0.2093811\t-1.0468597\t10.1814575\n1561016236943\tTYPE_MAGNETIC_FIELD\t37.86\t-3.0\t-13.259999\n1561016236943\tTYPE_GYROSCOPE\t-0.26948547\t0.13064575\t-0.31330872\n1561016236943\tTYPE_ROTATION_VECTOR\t0.03094511\t0.04407495\t0.58877873\n1561016236943\tTYPE_MAGNETIC_FIELD_UNCALIBRATED\t96.42\t-25.439999\t-74.7\n1561016236943\tTYPE_GYROSCOPE_UNCALIBRATED\t-0.26786804\t0.12982178\t-0.3161316\n1561016236943\tTYPE_ACCELEROMETER_UNCALIBRATED\t-0.16511536\t-1.1114655\t10.063019\n1561016237498\tTYPE_WAYPOINT\t112.98476\t85.69683\n1561016244541\tTYPE_WAYPOINT\t106.056755\t86.47471\n#\tendTime:1561016244703\n```\n\nWhat do you think? @yuanchaoshu ",
      "votes": 22
    }
  ],
  "comments": [],
  "raw_markdown_by_id": {
    "1191229": "The file `train/5cd969c839e2fc0b4afe7ff1/F5/5d0b3a544a58160008d75e26.txt` is something wrong.\nI think we already know the timestamp of TYPE_WAYPOINT is not sorted, but in this case I'm not talking about that.\nPlease take a look below\n\n```\n1561016232209\tTYPE_ACCELEROMETER\t0.13639832\t0.18185425\t8.910873\n1561016232209\tTYPE_MAGNETIC_FIELD\t35.399998\t23.039999\t-21.66\n1561016232209\tTYPE_GYROSCOPE\t0.040527344\t0.09063721\t0.055648804\n1561016232209\tTYPE_ROTATION_VECTOR\t-0.027541647\t0.0071000345\t0.49443698\n1561016232209\tTYPE_MAGNETIC_FIELD_UNCALIBRATED\t93.95999\t0.6000004\t-83.1\n1561016232209\tTYPE_GYROSCOPE_UNCALIBRATED\t0.08062744\t0.16647339\t0.006713867\n1561016232209\tTYPE_ACCELEROMETER_UNCALIBRATED\t0.08135986\t0.25483704\t8.634506\n1561016237498\tTYPE_WAYPOINT\t112.98476\t85.69683\n1561016232228\tTYPE_ACCELEROMETER\t0.34576416\t0.0047912598\t9.602402\n1561016232228\tTYPE_MAGNETIC_FIELD\t35.46\t22.859999\t-21.779999\n1561016232228\tTYPE_GYROSCOPE\t0.06037903\t-0.015655518\t0.05290222\n1561016232228\tTYPE_ROTATION_VECTOR\t-0.027731808\t0.008498736\t0.49474692\n1561016232228\tTYPE_MAGNETIC_FIELD_UNCALIBRATED\t94.02\t0.42000008\t-83.22\n1561016232228\tTYPE_GYROSCOPE_UNCALIBRATED\t0.06199646\t-0.016479492\t0.050079346\n1561016232228\tTYPE_ACCELEROMETER_UNCALIBRATED\t0.19621277\t0.105285645\t9.227921\n\n```\n\nThe timestamp of TYPE_WAYPOINT is **1561016237498**, x is **112.98476**, y is **85.69683**.\n\n```\n1561016236943\tTYPE_ACCELEROMETER\t-0.2093811\t-1.0468597\t10.1814575\n1561016236943\tTYPE_MAGNETIC_FIELD\t37.86\t-3.0\t-13.259999\n1561016236943\tTYPE_GYROSCOPE\t-0.26948547\t0.13064575\t-0.31330872\n1561016236943\tTYPE_ROTATION_VECTOR\t0.03094511\t0.04407495\t0.58877873\n1561016236943\tTYPE_MAGNETIC_FIELD_UNCALIBRATED\t96.42\t-25.439999\t-74.7\n1561016236943\tTYPE_GYROSCOPE_UNCALIBRATED\t-0.26786804\t0.12982178\t-0.3161316\n1561016236943\tTYPE_ACCELEROMETER_UNCALIBRATED\t-0.16511536\t-1.1114655\t10.063019\n1561016244541\tTYPE_WAYPOINT\t106.056755\t86.47471\n#\tendTime:1561016244703\n```\n\nAnd the next timestamp of TYPE_WAYPOINT is **1561016244541**, x is **106.056755**, y is **86.47471**.\nThat means if timestamp is correct and sorted by timestamp, this smartphone was carried **without any gyro and acceleration information**.\nFollowing is the sorted lines with timestamp.\n```\n1561016236943\tTYPE_ACCELEROMETER\t-0.2093811\t-1.0468597\t10.1814575\n1561016236943\tTYPE_MAGNETIC_FIELD\t37.86\t-3.0\t-13.259999\n1561016236943\tTYPE_GYROSCOPE\t-0.26948547\t0.13064575\t-0.31330872\n1561016236943\tTYPE_ROTATION_VECTOR\t0.03094511\t0.04407495\t0.58877873\n1561016236943\tTYPE_MAGNETIC_FIELD_UNCALIBRATED\t96.42\t-25.439999\t-74.7\n1561016236943\tTYPE_GYROSCOPE_UNCALIBRATED\t-0.26786804\t0.12982178\t-0.3161316\n1561016236943\tTYPE_ACCELEROMETER_UNCALIBRATED\t-0.16511536\t-1.1114655\t10.063019\n1561016237498\tTYPE_WAYPOINT\t112.98476\t85.69683\n1561016244541\tTYPE_WAYPOINT\t106.056755\t86.47471\n#\tendTime:1561016244703\n```\n\nWhat do you think? @yuanchaoshu "
  }
}