{
  "id": 610253,
  "title": "May I ask how to do the Train and Val Split?",
  "url": "/competitions/rsna-intracranial-aneurysm-detection/discussion/610253",
  "author_name": "sam_the_rice_cake",
  "post_date": "2025-10-02T19:46:31.183000",
  "votes": 0,
  "comment_count": 0,
  "views": 0,
  "content": "<p>Hi guys, I am trying to train an Effnet model according to the following notebook,<br>\n<a href=\"https://www.kaggle.com/code/ichigoe/train-224x224-dicom-pngs-efficientnetv2s\" target=\"_blank\">https://www.kaggle.com/code/ichigoe/train-224x224-dicom-pngs-efficientnetv2s</a><br>\nCV in this notebook is totally unmatched by the LB, and I think there's a data Leak happened during Train and Val split.<br>\nI tried a lot of methods, but I still can not figure it out.<br>\nCan anyone teach me how to safely do the Train and Val split here?<br>\nAppreciate!!!</p>",
  "messages": [
    {
      "id": 3297295,
      "postDate": "2025-10-02T19:46:31.183Z",
      "content": "<p>Hi guys, I am trying to train an Effnet model according to the following notebook,<br>\n<a href=\"https://www.kaggle.com/code/ichigoe/train-224x224-dicom-pngs-efficientnetv2s\" target=\"_blank\">https://www.kaggle.com/code/ichigoe/train-224x224-dicom-pngs-efficientnetv2s</a><br>\nCV in this notebook is totally unmatched by the LB, and I think there's a data Leak happened during Train and Val split.<br>\nI tried a lot of methods, but I still can not figure it out.<br>\nCan anyone teach me how to safely do the Train and Val split here?<br>\nAppreciate!!!</p>",
      "rawMarkdown": "Hi guys, I am trying to train an Effnet model according to the following notebook,\nhttps://www.kaggle.com/code/ichigoe/train-224x224-dicom-pngs-efficientnetv2s\nCV in this notebook is totally unmatched by the LB, and I think there's a data Leak happened during Train and Val split.\nI tried a lot of methods, but I still can not figure it out.\nCan anyone teach me how to safely do the Train and Val split here?\nAppreciate!!!"
    }
  ],
  "comments": [],
  "raw_markdown_by_id": {
    "3297295": "Hi guys, I am trying to train an Effnet model according to the following notebook,\nhttps://www.kaggle.com/code/ichigoe/train-224x224-dicom-pngs-efficientnetv2s\nCV in this notebook is totally unmatched by the LB, and I think there's a data Leak happened during Train and Val split.\nI tried a lot of methods, but I still can not figure it out.\nCan anyone teach me how to safely do the Train and Val split here?\nAppreciate!!!"
  }
}