{
  "id": 93188,
  "title": "Non-linear relation b/w CV and LB :p",
  "url": "/competitions/LANL-Earthquake-Prediction/discussion/93188",
  "author_name": "",
  "post_date": "2019-05-24T03:59:23.568061900Z",
  "votes": 3,
  "comment_count": 11,
  "views": 0,
  "content": "<p>I am having trouble in making CV and LB to move in the same direction.\nif let me know your stories and how are you approaching this problem. </p>\n\n<p><img src=\"https://storage.googleapis.com/kaggle-forum-message-attachments/536169/13286/CV%20and%20LB.jpg\" alt=\"\"></p>",
  "messages": [
    {
      "id": "536169",
      "postDate": "05/24/2019 03:59:23",
      "content": "<p>I am having trouble in making CV and LB to move in the same direction.\nif let me know your stories and how are you approaching this problem. </p>\n\n<p><img src=\"https://storage.googleapis.com/kaggle-forum-message-attachments/536169/13286/CV%20and%20LB.jpg\" alt=\"\"></p>",
      "rawMarkdown": "I am having trouble in making CV and LB to move in the same direction.\nif let me know your stories and how are you approaching this problem. \n\n\n![](https://storage.googleapis.com/kaggle-forum-message-attachments/536169/13286/CV%20and%20LB.jpg)",
      "votes": null
    },
    {
      "id": "536232",
      "postDate": "05/24/2019 05:44:05",
      "content": "<p>Wow! You've got a CV score of less than one. I'm impressed. That's MAE?</p>",
      "rawMarkdown": "Wow! You've got a CV score of less than one. I'm impressed. That's MAE?",
      "votes": null
    },
    {
      "id": "536233",
      "postDate": "05/24/2019 05:44:19",
      "content": "<p>you got very low CV... I have many submission with CV around 2.0~2.2 with LB 1.41~1.6 ... </p>",
      "rawMarkdown": "you got very low CV... I have many submission with CV around 2.0~2.2 with LB 1.41~1.6 ...",
      "votes": null
    },
    {
      "id": "536237",
      "postDate": "05/24/2019 05:49:57",
      "content": "<p>Shuffle?</p>",
      "rawMarkdown": "Shuffle?",
      "votes": null
    },
    {
      "id": "536238",
      "postDate": "05/24/2019 05:53:09",
      "content": "<p>Rather than your question, I’m very impressed by your low CV score. Great!\nAre you using data augmentation ? If so, how do you calculate CV score? like Kfold?</p>\n\n<p>upvoted</p>",
      "rawMarkdown": "Rather than your question, I’m very impressed by your low CV score. Great!\nAre you using data augmentation ? If so, how do you calculate CV score? like Kfold?\n\nupvoted",
      "votes": null
    },
    {
      "id": "536253",
      "postDate": "05/24/2019 06:19:01",
      "content": "<p>Your very good CV must have been leaked, which means the training set has too much target information of the leave-out validation set.</p>",
      "rawMarkdown": "Your very good CV must have been leaked, which means the training set has too much target information of the leave-out validation set.",
      "votes": null
    },
    {
      "id": "536258",
      "postDate": "05/24/2019 06:24:27",
      "content": "<p>I have the same hypothesis of target leak. trying to fix that since yesterday.\ni have manage to achieve CV as low as 0.8876051254283551 :P</p>",
      "rawMarkdown": "I have the same hypothesis of target leak. trying to fix that since yesterday.\ni have manage to achieve CV as low as 0.8876051254283551 :P",
      "votes": null
    },
    {
      "id": "536259",
      "postDate": "05/24/2019 06:25:03",
      "content": "<p>No augmentation. good CV could be possible case of target leak </p>",
      "rawMarkdown": "No augmentation. good CV could be possible case of target leak",
      "votes": null
    },
    {
      "id": "536260",
      "postDate": "05/24/2019 06:25:16",
      "content": "<p>No Shuffle. good CV could be possible case of target leak </p>",
      "rawMarkdown": "No Shuffle. good CV could be possible case of target leak",
      "votes": null
    },
    {
      "id": "536261",
      "postDate": "05/24/2019 06:25:29",
      "content": "<p>Good CV could be possible case of target leak</p>",
      "rawMarkdown": "Good CV could be possible case of target leak",
      "votes": null
    },
    {
      "id": "536262",
      "postDate": "05/24/2019 06:25:37",
      "content": "<p>Yes its MAE, Good CV could be possible case of target leak</p>",
      "rawMarkdown": "Yes its MAE, Good CV could be possible case of target leak",
      "votes": null
    },
    {
      "id": "536681",
      "postDate": "05/25/2019 01:53:21",
      "content": "<p>Thanks, it's very helpful for me.</p>",
      "rawMarkdown": "Thanks, it's very helpful for me.",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 536232,
      "author_name": "bernir",
      "author_url": "",
      "post_date": "05/24/2019 05:44:05",
      "content": "<p>Wow! You've got a CV score of less than one. I'm impressed. That's MAE?</p>",
      "votes": null,
      "replies": [
        {
          "id": 536262,
          "author_name": "mks2192",
          "author_url": "",
          "post_date": "05/24/2019 06:25:37",
          "content": "<p>Yes its MAE, Good CV could be possible case of target leak</p>",
          "votes": null,
          "replies": []
        }
      ]
    },
    {
      "id": 536233,
      "author_name": "zhixuanliu",
      "author_url": "",
      "post_date": "05/24/2019 05:44:19",
      "content": "<p>you got very low CV... I have many submission with CV around 2.0~2.2 with LB 1.41~1.6 ... </p>",
      "votes": null,
      "replies": [
        {
          "id": 536261,
          "author_name": "mks2192",
          "author_url": "",
          "post_date": "05/24/2019 06:25:29",
          "content": "<p>Good CV could be possible case of target leak</p>",
          "votes": null,
          "replies": []
        }
      ]
    },
    {
      "id": 536237,
      "author_name": "timmmmmms",
      "author_url": "",
      "post_date": "05/24/2019 05:49:57",
      "content": "<p>Shuffle?</p>",
      "votes": null,
      "replies": [
        {
          "id": 536260,
          "author_name": "mks2192",
          "author_url": "",
          "post_date": "05/24/2019 06:25:16",
          "content": "<p>No Shuffle. good CV could be possible case of target leak </p>",
          "votes": null,
          "replies": []
        }
      ]
    },
    {
      "id": 536238,
      "author_name": "xinyan989",
      "author_url": "",
      "post_date": "05/24/2019 05:53:09",
      "content": "<p>Rather than your question, I’m very impressed by your low CV score. Great!\nAre you using data augmentation ? If so, how do you calculate CV score? like Kfold?</p>\n\n<p>upvoted</p>",
      "votes": null,
      "replies": [
        {
          "id": 536259,
          "author_name": "mks2192",
          "author_url": "",
          "post_date": "05/24/2019 06:25:03",
          "content": "<p>No augmentation. good CV could be possible case of target leak </p>",
          "votes": null,
          "replies": []
        }
      ]
    },
    {
      "id": 536253,
      "author_name": "khahuras",
      "author_url": "",
      "post_date": "05/24/2019 06:19:01",
      "content": "<p>Your very good CV must have been leaked, which means the training set has too much target information of the leave-out validation set.</p>",
      "votes": null,
      "replies": [
        {
          "id": 536258,
          "author_name": "mks2192",
          "author_url": "",
          "post_date": "05/24/2019 06:24:27",
          "content": "<p>I have the same hypothesis of target leak. trying to fix that since yesterday.\ni have manage to achieve CV as low as 0.8876051254283551 :P</p>",
          "votes": null,
          "replies": []
        }
      ]
    },
    {
      "id": 536681,
      "author_name": "songjian667",
      "author_url": "",
      "post_date": "05/25/2019 01:53:21",
      "content": "<p>Thanks, it's very helpful for me.</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "536169": "I am having trouble in making CV and LB to move in the same direction.\nif let me know your stories and how are you approaching this problem. \n\n\n![](https://storage.googleapis.com/kaggle-forum-message-attachments/536169/13286/CV%20and%20LB.jpg)",
    "536232": "Wow! You've got a CV score of less than one. I'm impressed. That's MAE?",
    "536233": "you got very low CV... I have many submission with CV around 2.0~2.2 with LB 1.41~1.6 ...",
    "536237": "Shuffle?",
    "536238": "Rather than your question, I’m very impressed by your low CV score. Great!\nAre you using data augmentation ? If so, how do you calculate CV score? like Kfold?\n\nupvoted",
    "536253": "Your very good CV must have been leaked, which means the training set has too much target information of the leave-out validation set.",
    "536258": "I have the same hypothesis of target leak. trying to fix that since yesterday.\ni have manage to achieve CV as low as 0.8876051254283551 :P",
    "536259": "No augmentation. good CV could be possible case of target leak",
    "536260": "No Shuffle. good CV could be possible case of target leak",
    "536261": "Good CV could be possible case of target leak",
    "536262": "Yes its MAE, Good CV could be possible case of target leak",
    "536681": "Thanks, it's very helpful for me."
  },
  "source": "meta"
}