{
  "id": 319632,
  "title": "Dumb question: what is one/single-fold?",
  "url": "/competitions/happy-whale-and-dolphin/discussion/319632",
  "author_name": "",
  "post_date": "2022-04-18T08:47:12.517994Z",
  "votes": 1,
  "comment_count": 2,
  "views": 0,
  "content": "<p>Hey guys,</p>\n<p>What is one/single fold when you guys talk about your models? It reminds me of K-fold cross validation so I have assumed one-fold model is a model that uses a cross validation at K=1. But such cross validation case seems to be meaningless. Is there anything else called One fold/single fold model? Please enlighten me.</p>",
  "messages": [
    {
      "id": "1759003",
      "postDate": "04/18/2022 08:47:12",
      "content": "<p>Hey guys,</p>\n<p>What is one/single fold when you guys talk about your models? It reminds me of K-fold cross validation so I have assumed one-fold model is a model that uses a cross validation at K=1. But such cross validation case seems to be meaningless. Is there anything else called One fold/single fold model? Please enlighten me.</p>",
      "rawMarkdown": "Hey guys,\n\nWhat is one/single fold when you guys talk about your models? It reminds me of K-fold cross validation so I have assumed one-fold model is a model that uses a cross validation at K=1. But such cross validation case seems to be meaningless. Is there anything else called One fold/single fold model? Please enlighten me.",
      "votes": null
    },
    {
      "id": "1759037",
      "postDate": "04/18/2022 09:25:19",
      "content": "<p>Single fold mean you split your data into 5 folds (for example), but only train and validate on single fold, maybe it's fold0, fold1 or fold4 instead of train/validate on total 5 folds</p>",
      "rawMarkdown": "Single fold mean you split your data into 5 folds (for example), but only train and validate on single fold, maybe it's fold0, fold1 or fold4 instead of train/validate on total 5 folds",
      "votes": null
    },
    {
      "id": "1759043",
      "postDate": "04/18/2022 09:38:32",
      "content": "<p>Oh crystal clear. Thank you very much!</p>",
      "rawMarkdown": "Oh crystal clear. Thank you very much!",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 1759037,
      "author_name": "ptran1203",
      "author_url": "",
      "post_date": "04/18/2022 09:25:19",
      "content": "<p>Single fold mean you split your data into 5 folds (for example), but only train and validate on single fold, maybe it's fold0, fold1 or fold4 instead of train/validate on total 5 folds</p>",
      "votes": null,
      "replies": [
        {
          "id": 1759043,
          "author_name": "cheulkay",
          "author_url": "",
          "post_date": "04/18/2022 09:38:32",
          "content": "<p>Oh crystal clear. Thank you very much!</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "1759003": "Hey guys,\n\nWhat is one/single fold when you guys talk about your models? It reminds me of K-fold cross validation so I have assumed one-fold model is a model that uses a cross validation at K=1. But such cross validation case seems to be meaningless. Is there anything else called One fold/single fold model? Please enlighten me.",
    "1759037": "Single fold mean you split your data into 5 folds (for example), but only train and validate on single fold, maybe it's fold0, fold1 or fold4 instead of train/validate on total 5 folds",
    "1759043": "Oh crystal clear. Thank you very much!"
  },
  "source": "meta"
}