{
  "id": 157003,
  "title": "Labels and core levels",
  "url": "/competitions/prostate-cancer-grade-assessment/discussion/157003",
  "author_name": "Corey",
  "post_date": "2020-06-08T21:09:38.770000",
  "votes": 4,
  "comment_count": 2,
  "views": 0,
  "content": "<p>Typically biopsy cores are assessed by reviewing multiple levels from a core, with the overall core given a single grade (e.g., 4+3). In this context, some cores do not exhibit the overall grade as saliently as other cores. In the competition data, it seems that there is generally one level provided per grade. I am curious if when the grades were assessed clinically, more levels were used, and if so, how was the single level chosen for the competition? My apologies if this question has already been asked/answered previously.</p>\n\n<p>Thanks!</p>",
  "messages": [
    {
      "id": 878794,
      "postDate": "2020-06-08T21:09:38.770Z",
      "content": "<p>Typically biopsy cores are assessed by reviewing multiple levels from a core, with the overall core given a single grade (e.g., 4+3). In this context, some cores do not exhibit the overall grade as saliently as other cores. In the competition data, it seems that there is generally one level provided per grade. I am curious if when the grades were assessed clinically, more levels were used, and if so, how was the single level chosen for the competition? My apologies if this question has already been asked/answered previously.</p>\n\n<p>Thanks!</p>",
      "rawMarkdown": "Typically biopsy cores are assessed by reviewing multiple levels from a core, with the overall core given a single grade (e.g., 4+3). In this context, some cores do not exhibit the overall grade as saliently as other cores. In the competition data, it seems that there is generally one level provided per grade. I am curious if when the grades were assessed clinically, more levels were used, and if so, how was the single level chosen for the competition? My apologies if this question has already been asked/answered previously.\n\nThanks!",
      "votes": 4
    },
    {
      "id": 879418,
      "postDate": "2020-06-09T13:05:58.177Z",
      "content": "<p>Good question! The training could contain noise due to this. For the test set, the cases were graded digitally and only using that particular section of the biopsy. In other words: for the test set, the input to your algorithm is the same as what the pathologist had to determine the grade. </p>",
      "rawMarkdown": "Good question! The training could contain noise due to this. For the test set, the cases were graded digitally and only using that particular section of the biopsy. In other words: for the test set, the input to your algorithm is the same as what the pathologist had to determine the grade. "
    },
    {
      "id": 879580,
      "postDate": "2020-06-09T15:08:38.087Z",
      "content": "<p>Thanks for the reply!</p>",
      "rawMarkdown": "Thanks for the reply!"
    }
  ],
  "comments": [
    {
      "id": 879418,
      "author_name": "Wouter Bulten",
      "author_url": "",
      "post_date": "2020-06-09T13:05:58.177000",
      "content": "<p>Good question! The training could contain noise due to this. For the test set, the cases were graded digitally and only using that particular section of the biopsy. In other words: for the test set, the input to your algorithm is the same as what the pathologist had to determine the grade. </p>",
      "votes": 0,
      "replies": []
    },
    {
      "id": 879580,
      "author_name": "Corey",
      "author_url": "",
      "post_date": "2020-06-09T15:08:38.087000",
      "content": "<p>Thanks for the reply!</p>",
      "votes": 0,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "878794": "Typically biopsy cores are assessed by reviewing multiple levels from a core, with the overall core given a single grade (e.g., 4+3). In this context, some cores do not exhibit the overall grade as saliently as other cores. In the competition data, it seems that there is generally one level provided per grade. I am curious if when the grades were assessed clinically, more levels were used, and if so, how was the single level chosen for the competition? My apologies if this question has already been asked/answered previously.\n\nThanks!",
    "879418": "Good question! The training could contain noise due to this. For the test set, the cases were graded digitally and only using that particular section of the biopsy. In other words: for the test set, the input to your algorithm is the same as what the pathologist had to determine the grade. ",
    "879580": "Thanks for the reply!"
  }
}