{
  "id": 192697,
  "title": "Why there are more submission samples than test samples?",
  "url": "/competitions/rsna-str-pulmonary-embolism-detection/discussion/192697",
  "author_name": "Swikwislkdjc",
  "post_date": "2020-10-22T19:34:43.069000",
  "votes": 0,
  "comment_count": 2,
  "views": 0,
  "content": "<p>For test samples, there are 146853 unique values but for submission samples there are 152703 unique values. Why there are more submission samples than test samples?</p>",
  "messages": [
    {
      "id": 1057602,
      "postDate": "2020-10-22T19:39:21.873Z",
      "content": "<p>Each test sample is one image. You need to predict <code>pe_present_on_image</code> for each of these. That is 146853 predictions. Furthermore there are 650 unique <code>StudyInstanceUID</code> in test samples. For each of these you need to predict 9 targets. That is <code>650 * 9 = 5850</code> more predictions. In total you need to predict <code>146853 + 5850 = 152703</code> predictions</p>",
      "rawMarkdown": "Each test sample is one image. You need to predict `pe_present_on_image` for each of these. That is 146853 predictions. Furthermore there are 650 unique `StudyInstanceUID` in test samples. For each of these you need to predict 9 targets. That is `650 * 9 = 5850` more predictions. In total you need to predict `146853 + 5850 = 152703` predictions",
      "votes": 3,
      "replies": [
        {
          "id": 1057610,
          "postDate": "2020-10-22T19:50:09.163Z",
          "content": "<p>I see. Clear explanation! Thanks!</p>",
          "rawMarkdown": "I see. Clear explanation! Thanks!",
          "votes": 3
        }
      ]
    },
    {
      "id": 1057599,
      "postDate": "2020-10-22T19:34:43.070Z",
      "content": "<p>For test samples, there are 146853 unique values but for submission samples there are 152703 unique values. Why there are more submission samples than test samples?</p>",
      "rawMarkdown": "For test samples, there are 146853 unique values but for submission samples there are 152703 unique values. Why there are more submission samples than test samples?"
    }
  ],
  "comments": [
    {
      "id": 1057602,
      "author_name": "Chris Deotte",
      "author_url": "",
      "post_date": "2020-10-22T19:39:21.873000",
      "content": "<p>Each test sample is one image. You need to predict <code>pe_present_on_image</code> for each of these. That is 146853 predictions. Furthermore there are 650 unique <code>StudyInstanceUID</code> in test samples. For each of these you need to predict 9 targets. That is <code>650 * 9 = 5850</code> more predictions. In total you need to predict <code>146853 + 5850 = 152703</code> predictions</p>",
      "votes": 3,
      "replies": [
        {
          "id": 1057610,
          "author_name": "Swikwislkdjc",
          "author_url": "",
          "post_date": "2020-10-22T19:50:09.163000",
          "content": "<p>I see. Clear explanation! Thanks!</p>",
          "votes": 3,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "1057602": "Each test sample is one image. You need to predict `pe_present_on_image` for each of these. That is 146853 predictions. Furthermore there are 650 unique `StudyInstanceUID` in test samples. For each of these you need to predict 9 targets. That is `650 * 9 = 5850` more predictions. In total you need to predict `146853 + 5850 = 152703` predictions",
    "1057599": "For test samples, there are 146853 unique values but for submission samples there are 152703 unique values. Why there are more submission samples than test samples?"
  }
}