{
  "id": 154738,
  "title": "Data provenance",
  "url": "/competitions/siim-isic-melanoma-classification/discussion/154738",
  "author_name": "",
  "post_date": "2020-05-29T16:07:34.354976300Z",
  "votes": null,
  "comment_count": 1,
  "views": 0,
  "content": "<p>Hi there  ! I was wondering whether there is coincidence between the images from this challenge and the ones from ISIC Challenge 2019. If there is, it can happen that images used for train last year appear in test dataset here? Wondering if I can test here the model I've trained with last year samples. Thanks in advance. </p>",
  "messages": [
    {
      "id": "866708",
      "postDate": "05/29/2020 16:07:34",
      "content": "<p>Hi there  ! I was wondering whether there is coincidence between the images from this challenge and the ones from ISIC Challenge 2019. If there is, it can happen that images used for train last year appear in test dataset here? Wondering if I can test here the model I've trained with last year samples. Thanks in advance. </p>",
      "rawMarkdown": "Hi there  ! I was wondering whether there is coincidence between the images from this challenge and the ones from ISIC Challenge 2019. If there is, it can happen that images used for train last year appear in test dataset here? Wondering if I can test here the model I've trained with last year samples. Thanks in advance.",
      "votes": null
    },
    {
      "id": "867023",
      "postDate": "05/29/2020 22:48:49",
      "content": "<p>The images in this competition’s train and test set’s are unique, so there is no overlap from prior years’. So yes, anything you see on ISIC’s site is available to use as additional external data. Be sure to declare it on the official external data thread, per the competition’s rules, if they haven’t already been declared.</p>",
      "rawMarkdown": "The images in this competition’s train and test set’s are unique, so there is no overlap from prior years’. So yes, anything you see on ISIC’s site is available to use as additional external data. Be sure to declare it on the official external data thread, per the competition’s rules, if they haven’t already been declared.",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 867023,
      "author_name": "juliaelliott",
      "author_url": "",
      "post_date": "05/29/2020 22:48:49",
      "content": "<p>The images in this competition’s train and test set’s are unique, so there is no overlap from prior years’. So yes, anything you see on ISIC’s site is available to use as additional external data. Be sure to declare it on the official external data thread, per the competition’s rules, if they haven’t already been declared.</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "866708": "Hi there  ! I was wondering whether there is coincidence between the images from this challenge and the ones from ISIC Challenge 2019. If there is, it can happen that images used for train last year appear in test dataset here? Wondering if I can test here the model I've trained with last year samples. Thanks in advance.",
    "867023": "The images in this competition’s train and test set’s are unique, so there is no overlap from prior years’. So yes, anything you see on ISIC’s site is available to use as additional external data. Be sure to declare it on the official external data thread, per the competition’s rules, if they haven’t already been declared."
  },
  "source": "meta"
}