{
  "id": 346521,
  "title": "Is RNN appropriate in this task?",
  "url": "/competitions/amex-default-prediction/discussion/346521",
  "author_name": "",
  "post_date": "2022-08-20T01:45:59.938621400Z",
  "votes": 1,
  "comment_count": 8,
  "views": 0,
  "content": "<p>Has someone used RNN in this task? I'm a beginner, it seemed to me that RNNs are suitable in this case. However, the maximum that we managed to get on GRU is 0.782. Please share your result on RNN. I wanted to understand, either I built an inefficient network, or RNN is not for this task.</p>",
  "messages": [
    {
      "id": "1906555",
      "postDate": "08/20/2022 01:45:59",
      "content": "<p>Has someone used RNN in this task? I'm a beginner, it seemed to me that RNNs are suitable in this case. However, the maximum that we managed to get on GRU is 0.782. Please share your result on RNN. I wanted to understand, either I built an inefficient network, or RNN is not for this task.</p>",
      "rawMarkdown": "Has someone used RNN in this task? I'm a beginner, it seemed to me that RNNs are suitable in this case. However, the maximum that we managed to get on GRU is 0.782. Please share your result on RNN. I wanted to understand, either I built an inefficient network, or RNN is not for this task.",
      "votes": null
    },
    {
      "id": "1907019",
      "postDate": "08/20/2022 11:58:39",
      "content": "<p>I've also tried a lot with GRU and transformers, but none of them work well. Maybe I haven't found the right way to use it in this competition.</p>",
      "rawMarkdown": "I've also tried a lot with GRU and transformers, but none of them work well. Maybe I haven't found the right way to use it in this competition.",
      "votes": null
    },
    {
      "id": "1907054",
      "postDate": "08/20/2022 12:20:32",
      "content": "<p>For me, NN on aggregated features turned out to be more effective. About the same as LightGBM.</p>",
      "rawMarkdown": "For me, NN on aggregated features turned out to be more effective. About the same as LightGBM.",
      "votes": null
    },
    {
      "id": "1907508",
      "postDate": "08/20/2022 21:05:10",
      "content": "<p>My maximum on LSTM with Attention is right around 0.780-0.782 as well on a validation set. <a href=\"https://www.kaggle.com/competitions/amex-default-prediction/discussion/346143\" target=\"_blank\">Ensembling</a> my model was able to boost it a tiny bit to 0.783.</p>\n<p>The tricky part seems to be in effectively regularizing the recurrent connections, since it can easily overfit to 0.79-0.8+.</p>",
      "rawMarkdown": "My maximum on LSTM with Attention is right around 0.780-0.782 as well on a validation set. [Ensembling](https://www.kaggle.com/competitions/amex-default-prediction/discussion/346143) my model was able to boost it a tiny bit to 0.783.\n\nThe tricky part seems to be in effectively regularizing the recurrent connections, since it can easily overfit to 0.79-0.8+.",
      "votes": null
    },
    {
      "id": "1907703",
      "postDate": "08/21/2022 02:04:08",
      "content": "<p>Thank you, apparently RNN is not so effective in this task.</p>",
      "rawMarkdown": "Thank you, apparently RNN is not so effective in this task.",
      "votes": null
    },
    {
      "id": "1907967",
      "postDate": "08/21/2022 08:40:57",
      "content": "<p>I tried with 1layer Gru, and was able to achive lb score: .79 after trying lot of  changes. My observation is that since most of them are easy examples, we need to make to model focus on the hard ones , i.e to push the gradient.</p>",
      "rawMarkdown": "I tried with 1layer Gru, and was able to achive lb score: .79 after trying lot of  changes. My observation is that since most of them are easy examples, we need to make to model focus on the hard ones , i.e to push the gradient.",
      "votes": null
    },
    {
      "id": "1907993",
      "postDate": "08/21/2022 09:12:16",
      "content": "<p>Thank you for advice.</p>",
      "rawMarkdown": "Thank you for advice.",
      "votes": null
    },
    {
      "id": "1909689",
      "postDate": "08/22/2022 20:53:32",
      "content": "<p>I get 795 cv and 796 lb with sequential NN, but it doesn't help)))</p>",
      "rawMarkdown": "I get 795 cv and 796 lb with sequential NN, but it doesn't help)))",
      "votes": null
    },
    {
      "id": "1910552",
      "postDate": "08/23/2022 14:02:53",
      "content": "<p>My maximum on sequential NN was 0.788. For more, apparently, there is not enough experience and knowledge yet).</p>",
      "rawMarkdown": "My maximum on sequential NN was 0.788. For more, apparently, there is not enough experience and knowledge yet).",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 1907019,
      "author_name": "zhudong1949",
      "author_url": "",
      "post_date": "08/20/2022 11:58:39",
      "content": "<p>I've also tried a lot with GRU and transformers, but none of them work well. Maybe I haven't found the right way to use it in this competition.</p>",
      "votes": null,
      "replies": [
        {
          "id": 1907054,
          "author_name": "gribanovsv419",
          "author_url": "",
          "post_date": "08/20/2022 12:20:32",
          "content": "<p>For me, NN on aggregated features turned out to be more effective. About the same as LightGBM.</p>",
          "votes": null,
          "replies": []
        }
      ]
    },
    {
      "id": 1907508,
      "author_name": "adamw01",
      "author_url": "",
      "post_date": "08/20/2022 21:05:10",
      "content": "<p>My maximum on LSTM with Attention is right around 0.780-0.782 as well on a validation set. <a href=\"https://www.kaggle.com/competitions/amex-default-prediction/discussion/346143\" target=\"_blank\">Ensembling</a> my model was able to boost it a tiny bit to 0.783.</p>\n<p>The tricky part seems to be in effectively regularizing the recurrent connections, since it can easily overfit to 0.79-0.8+.</p>",
      "votes": null,
      "replies": [
        {
          "id": 1907703,
          "author_name": "gribanovsv419",
          "author_url": "",
          "post_date": "08/21/2022 02:04:08",
          "content": "<p>Thank you, apparently RNN is not so effective in this task.</p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 1909689,
          "author_name": "simakov",
          "author_url": "",
          "post_date": "08/22/2022 20:53:32",
          "content": "<p>I get 795 cv and 796 lb with sequential NN, but it doesn't help)))</p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 1910552,
          "author_name": "gribanovsv419",
          "author_url": "",
          "post_date": "08/23/2022 14:02:53",
          "content": "<p>My maximum on sequential NN was 0.788. For more, apparently, there is not enough experience and knowledge yet).</p>",
          "votes": null,
          "replies": []
        }
      ]
    },
    {
      "id": 1907967,
      "author_name": "narendra",
      "author_url": "",
      "post_date": "08/21/2022 08:40:57",
      "content": "<p>I tried with 1layer Gru, and was able to achive lb score: .79 after trying lot of  changes. My observation is that since most of them are easy examples, we need to make to model focus on the hard ones , i.e to push the gradient.</p>",
      "votes": null,
      "replies": [
        {
          "id": 1907993,
          "author_name": "gribanovsv419",
          "author_url": "",
          "post_date": "08/21/2022 09:12:16",
          "content": "<p>Thank you for advice.</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "1906555": "Has someone used RNN in this task? I'm a beginner, it seemed to me that RNNs are suitable in this case. However, the maximum that we managed to get on GRU is 0.782. Please share your result on RNN. I wanted to understand, either I built an inefficient network, or RNN is not for this task.",
    "1907019": "I've also tried a lot with GRU and transformers, but none of them work well. Maybe I haven't found the right way to use it in this competition.",
    "1907054": "For me, NN on aggregated features turned out to be more effective. About the same as LightGBM.",
    "1907508": "My maximum on LSTM with Attention is right around 0.780-0.782 as well on a validation set. [Ensembling](https://www.kaggle.com/competitions/amex-default-prediction/discussion/346143) my model was able to boost it a tiny bit to 0.783.\n\nThe tricky part seems to be in effectively regularizing the recurrent connections, since it can easily overfit to 0.79-0.8+.",
    "1907703": "Thank you, apparently RNN is not so effective in this task.",
    "1907967": "I tried with 1layer Gru, and was able to achive lb score: .79 after trying lot of  changes. My observation is that since most of them are easy examples, we need to make to model focus on the hard ones , i.e to push the gradient.",
    "1907993": "Thank you for advice.",
    "1909689": "I get 795 cv and 796 lb with sequential NN, but it doesn't help)))",
    "1910552": "My maximum on sequential NN was 0.788. For more, apparently, there is not enough experience and knowledge yet)."
  },
  "source": "meta"
}