{
  "id": 220659,
  "title": "My RNN finally catches up with LGB",
  "url": "/competitions/indoor-location-navigation/discussion/220659",
  "author_name": "Jiwei Liu",
  "post_date": "2021-02-19T05:51:11.059000",
  "votes": 63,
  "comment_count": 18,
  "views": 0,
  "content": "<p>RNN LB: 8.34<br>\nLGB LB: 8.33 (<a href=\"https://www.kaggle.com/hiro5299834/wifi-features-with-lightgbm-kfold\" target=\"_blank\">public benchmark</a>)<br>\nAverage (RNN+LGB)/2 LB: 7.71</p>\n<p>Update:<br>\nRNN LB: 7.6<br>\nPrevious (RNN+LGB)/2 LB: 7.71<br>\nAverage LB: 7.1</p>\n<p>Update2:<br>\nRNN LB: 6.99<br>\nPrevious blend LB: 7.1<br>\nAverage LB: 6.86</p>\n<p>Update3:<br>\nRNN LB: 6.55<br>\nBlending with LGB (<a href=\"https://www.kaggle.com/hiro5299834/wifi-features-with-lightgbm-kfold\" target=\"_blank\">public benchmark</a>) doesn't improve anymore.</p>\n<p>How is your deep learning model doing?</p>",
  "messages": [
    {
      "id": 1209942,
      "postDate": "2021-02-19T05:51:11.060Z",
      "content": "<p>RNN LB: 8.34<br>\nLGB LB: 8.33 (<a href=\"https://www.kaggle.com/hiro5299834/wifi-features-with-lightgbm-kfold\" target=\"_blank\">public benchmark</a>)<br>\nAverage (RNN+LGB)/2 LB: 7.71</p>\n<p>Update:<br>\nRNN LB: 7.6<br>\nPrevious (RNN+LGB)/2 LB: 7.71<br>\nAverage LB: 7.1</p>\n<p>Update2:<br>\nRNN LB: 6.99<br>\nPrevious blend LB: 7.1<br>\nAverage LB: 6.86</p>\n<p>Update3:<br>\nRNN LB: 6.55<br>\nBlending with LGB (<a href=\"https://www.kaggle.com/hiro5299834/wifi-features-with-lightgbm-kfold\" target=\"_blank\">public benchmark</a>) doesn't improve anymore.</p>\n<p>How is your deep learning model doing?</p>",
      "rawMarkdown": "RNN LB: 8.34\nLGB LB: 8.33 ([public benchmark](https://www.kaggle.com/hiro5299834/wifi-features-with-lightgbm-kfold))\nAverage (RNN+LGB)/2 LB: 7.71\n\nUpdate:\nRNN LB: 7.6\nPrevious (RNN+LGB)/2 LB: 7.71\nAverage LB: 7.1\n\nUpdate2:\nRNN LB: 6.99\nPrevious blend LB: 7.1\nAverage LB: 6.86\n\nUpdate3:\nRNN LB: 6.55\nBlending with LGB ([public benchmark](https://www.kaggle.com/hiro5299834/wifi-features-with-lightgbm-kfold)) doesn't improve anymore.\n\nHow is your deep learning model doing?",
      "votes": 63
    },
    {
      "id": 1231330,
      "postDate": "2021-03-08T22:02:23.530Z",
      "content": "<p>Now I applied Transformer to my model and it works. </p>",
      "rawMarkdown": "Now I applied Transformer to my model and it works. ",
      "votes": 10,
      "replies": [
        {
          "id": 1231491,
          "postDate": "2021-03-09T02:58:49.877Z",
          "content": "<p>Great! Does it outperform RNN?</p>",
          "rawMarkdown": "Great! Does it outperform RNN?",
          "votes": 3
        },
        {
          "id": 1231512,
          "postDate": "2021-03-09T03:27:01.750Z",
          "content": "<p>Yes!<br>\nThe LB rose around 6.8 to 6.3. <br>\nStill struggling with breaking 6 though. </p>",
          "rawMarkdown": "Yes!\nThe LB rose around 6.8 to 6.3. \nStill struggling with breaking 6 though. ",
          "votes": 6
        },
        {
          "id": 1231713,
          "postDate": "2021-03-09T07:20:27.217Z",
          "content": "<p>My Transformer outperforms LSTM too<br>\nStill not submitted though </p>",
          "rawMarkdown": "My Transformer outperforms LSTM too\nStill not submitted though ",
          "votes": 2
        },
        {
          "id": 1261558,
          "postDate": "2021-04-03T07:07:12.510Z",
          "content": "<p>Hi folks, what kind of architecture do you use for transformers? My implementation cannot catch up with LSTM. I've never used transformers before. Can someone give me an example?</p>",
          "rawMarkdown": "Hi folks, what kind of architecture do you use for transformers? My implementation cannot catch up with LSTM. I've never used transformers before. Can someone give me an example?",
          "votes": 3
        }
      ]
    },
    {
      "id": 1210597,
      "postDate": "2021-02-19T14:44:23.863Z",
      "content": "<p>if it can be done with LSTM, then it can be done by the transformer.<br>\nnow is still early, I will try this after other competitions in mid-march.</p>",
      "rawMarkdown": "if it can be done with LSTM, then it can be done by the transformer.\nnow is still early, I will try this after other competitions in mid-march.",
      "votes": 7
    },
    {
      "id": 1215024,
      "postDate": "2021-02-23T09:23:49.320Z",
      "content": "<p>Sounds like a good competition to join!</p>",
      "rawMarkdown": "Sounds like a good competition to join!",
      "votes": 6
    },
    {
      "id": 1210019,
      "postDate": "2021-02-19T06:51:47.960Z",
      "content": "<p>Great work!  I will try nn models now.</p>",
      "rawMarkdown": "Great work!  I will try nn models now.",
      "votes": 3
    },
    {
      "id": 1254803,
      "postDate": "2021-03-28T06:32:57.720Z",
      "content": "<p>I am trying to use RNN in my model for prediction but my training data is having unequal number of time stamps so i have to pass them one by one ,also i cant pass anything for validation data again due to unequal number of time stamps in each instance .Can anyone help how to approach this ?</p>",
      "rawMarkdown": "I am trying to use RNN in my model for prediction but my training data is having unequal number of time stamps so i have to pass them one by one ,also i cant pass anything for validation data again due to unequal number of time stamps in each instance .Can anyone help how to approach this ?",
      "votes": 1,
      "replies": [
        {
          "id": 1262781,
          "postDate": "2021-04-04T17:55:30.863Z",
          "content": "<p>find the sequence/time appropiate dimension</p>",
          "rawMarkdown": "find the sequence/time appropiate dimension"
        }
      ]
    },
    {
      "id": 1219951,
      "postDate": "2021-02-27T11:35:32.797Z",
      "content": "<p>Thanks for sharing your update info, great work! Really helpful</p>",
      "rawMarkdown": "Thanks for sharing your update info, great work! Really helpful",
      "votes": 1
    },
    {
      "id": 1210664,
      "postDate": "2021-02-19T15:37:09.513Z",
      "content": "<p>Congratulations! </p>",
      "rawMarkdown": "Congratulations! ",
      "votes": 1
    },
    {
      "id": 1229946,
      "postDate": "2021-03-07T17:51:54.700Z",
      "content": "<p>Awesome. Great job Jiwei !</p>",
      "rawMarkdown": "Awesome. Great job Jiwei !",
      "votes": 2,
      "replies": [
        {
          "id": 1231517,
          "postDate": "2021-03-09T03:36:34.163Z",
          "content": "<p>Thank you! 😄</p>",
          "rawMarkdown": "Thank you! 😄",
          "votes": 1
        }
      ]
    },
    {
      "id": 1220429,
      "postDate": "2021-02-28T01:37:01.403Z",
      "content": "<p>Thanks for sharing your update info, great work! <br>\nDoes the RNN part only use wifi data? like lgb.</p>",
      "rawMarkdown": "Thanks for sharing your update info, great work! \nDoes the RNN part only use wifi data? like lgb.",
      "votes": 2,
      "replies": [
        {
          "id": 1220619,
          "postDate": "2021-02-28T07:08:20.750Z",
          "content": "<p>I am using all the data. :)</p>",
          "rawMarkdown": "I am using all the data. :)",
          "votes": 2
        }
      ]
    },
    {
      "id": 1219621,
      "postDate": "2021-02-27T02:38:13.537Z",
      "content": "<p>It is fantastic RNN~=lgb</p>",
      "rawMarkdown": "It is fantastic RNN~=lgb",
      "votes": 2
    },
    {
      "id": 1244186,
      "postDate": "2021-03-18T18:44:26.423Z",
      "rawMarkdown": "",
      "votes": 4,
      "isDeleted": true
    }
  ],
  "comments": [
    {
      "id": 1231330,
      "author_name": "Kouki",
      "author_url": "",
      "post_date": "2021-03-08T22:02:23.530000",
      "content": "<p>Now I applied Transformer to my model and it works. </p>",
      "votes": 10,
      "replies": [
        {
          "id": 1231491,
          "author_name": "Jiwei Liu",
          "author_url": "",
          "post_date": "2021-03-09T02:58:49.877000",
          "content": "<p>Great! Does it outperform RNN?</p>",
          "votes": 3,
          "replies": []
        },
        {
          "id": 1231512,
          "author_name": "Kouki",
          "author_url": "",
          "post_date": "2021-03-09T03:27:01.750000",
          "content": "<p>Yes!<br>\nThe LB rose around 6.8 to 6.3. <br>\nStill struggling with breaking 6 though. </p>",
          "votes": 6,
          "replies": []
        },
        {
          "id": 1231713,
          "author_name": "Serigne ",
          "author_url": "",
          "post_date": "2021-03-09T07:20:27.217000",
          "content": "<p>My Transformer outperforms LSTM too<br>\nStill not submitted though </p>",
          "votes": 2,
          "replies": []
        },
        {
          "id": 1261558,
          "author_name": "Anton Enns",
          "author_url": "",
          "post_date": "2021-04-03T07:07:12.510000",
          "content": "<p>Hi folks, what kind of architecture do you use for transformers? My implementation cannot catch up with LSTM. I've never used transformers before. Can someone give me an example?</p>",
          "votes": 3,
          "replies": []
        }
      ]
    },
    {
      "id": 1210597,
      "author_name": "hengck23",
      "author_url": "",
      "post_date": "2021-02-19T14:44:23.863000",
      "content": "<p>if it can be done with LSTM, then it can be done by the transformer.<br>\nnow is still early, I will try this after other competitions in mid-march.</p>",
      "votes": 7,
      "replies": []
    },
    {
      "id": 1215024,
      "author_name": "Ahmet Erdem",
      "author_url": "",
      "post_date": "2021-02-23T09:23:49.320000",
      "content": "<p>Sounds like a good competition to join!</p>",
      "votes": 6,
      "replies": []
    },
    {
      "id": 1210019,
      "author_name": "Ethan",
      "author_url": "",
      "post_date": "2021-02-19T06:51:47.960000",
      "content": "<p>Great work!  I will try nn models now.</p>",
      "votes": 3,
      "replies": []
    },
    {
      "id": 1254803,
      "author_name": "Devansh Chowdhury",
      "author_url": "",
      "post_date": "2021-03-28T06:32:57.720000",
      "content": "<p>I am trying to use RNN in my model for prediction but my training data is having unequal number of time stamps so i have to pass them one by one ,also i cant pass anything for validation data again due to unequal number of time stamps in each instance .Can anyone help how to approach this ?</p>",
      "votes": 1,
      "replies": [
        {
          "id": 1262781,
          "author_name": "EnricRovira",
          "author_url": "",
          "post_date": "2021-04-04T17:55:30.863000",
          "content": "<p>find the sequence/time appropiate dimension</p>",
          "votes": 0,
          "replies": []
        }
      ]
    },
    {
      "id": 1219951,
      "author_name": "GuanLong Lyu",
      "author_url": "",
      "post_date": "2021-02-27T11:35:32.797000",
      "content": "<p>Thanks for sharing your update info, great work! Really helpful</p>",
      "votes": 1,
      "replies": []
    },
    {
      "id": 1210664,
      "author_name": "Dongkyu Kim",
      "author_url": "",
      "post_date": "2021-02-19T15:37:09.513000",
      "content": "<p>Congratulations! </p>",
      "votes": 1,
      "replies": []
    },
    {
      "id": 1229946,
      "author_name": "Chris Deotte",
      "author_url": "",
      "post_date": "2021-03-07T17:51:54.700000",
      "content": "<p>Awesome. Great job Jiwei !</p>",
      "votes": 2,
      "replies": [
        {
          "id": 1231517,
          "author_name": "Jiwei Liu",
          "author_url": "",
          "post_date": "2021-03-09T03:36:34.163000",
          "content": "<p>Thank you! 😄</p>",
          "votes": 1,
          "replies": []
        }
      ]
    },
    {
      "id": 1220429,
      "author_name": "Chunyu Wei",
      "author_url": "",
      "post_date": "2021-02-28T01:37:01.403000",
      "content": "<p>Thanks for sharing your update info, great work! <br>\nDoes the RNN part only use wifi data? like lgb.</p>",
      "votes": 2,
      "replies": [
        {
          "id": 1220619,
          "author_name": "Jiwei Liu",
          "author_url": "",
          "post_date": "2021-02-28T07:08:20.750000",
          "content": "<p>I am using all the data. :)</p>",
          "votes": 2,
          "replies": []
        }
      ]
    },
    {
      "id": 1219621,
      "author_name": "Yoshiyasu",
      "author_url": "",
      "post_date": "2021-02-27T02:38:13.537000",
      "content": "<p>It is fantastic RNN~=lgb</p>",
      "votes": 2,
      "replies": []
    },
    {
      "id": 1244186,
      "author_name": "",
      "author_url": "",
      "post_date": "2021-03-18T18:44:26.423000",
      "content": "",
      "votes": 4,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "1209942": "RNN LB: 8.34\nLGB LB: 8.33 ([public benchmark](https://www.kaggle.com/hiro5299834/wifi-features-with-lightgbm-kfold))\nAverage (RNN+LGB)/2 LB: 7.71\n\nUpdate:\nRNN LB: 7.6\nPrevious (RNN+LGB)/2 LB: 7.71\nAverage LB: 7.1\n\nUpdate2:\nRNN LB: 6.99\nPrevious blend LB: 7.1\nAverage LB: 6.86\n\nUpdate3:\nRNN LB: 6.55\nBlending with LGB ([public benchmark](https://www.kaggle.com/hiro5299834/wifi-features-with-lightgbm-kfold)) doesn't improve anymore.\n\nHow is your deep learning model doing?",
    "1231330": "Now I applied Transformer to my model and it works. ",
    "1210597": "if it can be done with LSTM, then it can be done by the transformer.\nnow is still early, I will try this after other competitions in mid-march.",
    "1215024": "Sounds like a good competition to join!",
    "1210019": "Great work!  I will try nn models now.",
    "1254803": "I am trying to use RNN in my model for prediction but my training data is having unequal number of time stamps so i have to pass them one by one ,also i cant pass anything for validation data again due to unequal number of time stamps in each instance .Can anyone help how to approach this ?",
    "1219951": "Thanks for sharing your update info, great work! Really helpful",
    "1210664": "Congratulations! ",
    "1229946": "Awesome. Great job Jiwei !",
    "1220429": "Thanks for sharing your update info, great work! \nDoes the RNN part only use wifi data? like lgb.",
    "1219621": "It is fantastic RNN~=lgb",
    "1244186": ""
  }
}