{
  "id": 198987,
  "title": "Cassava Brown Streak Disease unusual instances ",
  "url": "/competitions/cassava-leaf-disease-classification/discussion/198987",
  "author_name": "",
  "post_date": "2020-11-23T22:47:06.439479400Z",
  "votes": 14,
  "comment_count": 7,
  "views": 0,
  "content": "<p>I think a lot of players checked dataset first by eyes. And if we check Cassava Brown Streak Disease we can see some number of unusual samples. </p>\n<p><img src=\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F732424%2Ff927d16d5360021b7897ae95055f25c5%2F1338159402.jpg?generation=1606171509455981&amp;alt=media\" alt=\"\"></p>\n<p><img src=\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F732424%2Ffd0c5d7bad6e01af1fe182b92e1a4b65%2F159654644.jpg?generation=1606171549217835&amp;alt=media\" alt=\"\"></p>\n<p>I think potentially it would be good to make separate subclass for them.</p>\n<p>Did anyone faced with this issue and what did you try?</p>",
  "messages": [
    {
      "id": "1088743",
      "postDate": "11/23/2020 22:47:06",
      "content": "<p>I think a lot of players checked dataset first by eyes. And if we check Cassava Brown Streak Disease we can see some number of unusual samples. </p>\n<p><img src=\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F732424%2Ff927d16d5360021b7897ae95055f25c5%2F1338159402.jpg?generation=1606171509455981&amp;alt=media\" alt=\"\"></p>\n<p><img src=\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F732424%2Ffd0c5d7bad6e01af1fe182b92e1a4b65%2F159654644.jpg?generation=1606171549217835&amp;alt=media\" alt=\"\"></p>\n<p>I think potentially it would be good to make separate subclass for them.</p>\n<p>Did anyone faced with this issue and what did you try?</p>",
      "rawMarkdown": "I think a lot of players checked dataset first by eyes. And if we check Cassava Brown Streak Disease we can see some number of unusual samples. \n\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F732424%2Ff927d16d5360021b7897ae95055f25c5%2F1338159402.jpg?generation=1606171509455981&alt=media)\n\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F732424%2Ffd0c5d7bad6e01af1fe182b92e1a4b65%2F159654644.jpg?generation=1606171549217835&alt=media)\n\nI think potentially it would be good to make separate subclass for them.\n\nDid anyone faced with this issue and what did you try?",
      "votes": null
    },
    {
      "id": "1088755",
      "postDate": "11/23/2020 23:03:52",
      "content": "<p>I will try to add all similar samples into my <a href=\"https://www.kaggle.com/isaienkov/cassava-leaf-disease-classification-data-analysis\">kernel</a>.</p>",
      "rawMarkdown": "I will try to add all similar samples into my <a href=\"https://www.kaggle.com/isaienkov/cassava-leaf-disease-classification-data-analysis\">kernel</a>.",
      "votes": null
    },
    {
      "id": "1088841",
      "postDate": "11/24/2020 01:38:25",
      "content": "<p>Good Find. The point to note is these are not leaves and seems like something that is readily consumable. And if this is true, identification of disease in such cases is happening very late in the plant's lifecycle.</p>",
      "rawMarkdown": "Good Find. The point to note is these are not leaves and seems like something that is readily consumable. And if this is true, identification of disease in such cases is happening very late in the plant's lifecycle.",
      "votes": null
    },
    {
      "id": "1088866",
      "postDate": "11/24/2020 02:18:51",
      "content": "<p>Don't know whether this will happen in the test set…🙀</p>",
      "rawMarkdown": "Don't know whether this will happen in the test set...🙀",
      "votes": null
    },
    {
      "id": "1089734",
      "postDate": "11/24/2020 18:19:50",
      "content": "<p>I prepared full list of similar samples in <a href=\"https://www.kaggle.com/isaienkov/cassava-leaf-disease-classification-data-analysis/\" target=\"_blank\">https://www.kaggle.com/isaienkov/cassava-leaf-disease-classification-data-analysis/</a> .</p>\n<p>Totally we have 76 similar samples in Cassava Brown Streak Disease class. It is about 3.5%  from class volume.</p>",
      "rawMarkdown": "I prepared full list of similar samples in https://www.kaggle.com/isaienkov/cassava-leaf-disease-classification-data-analysis/ .\n\nTotally we have 76 similar samples in Cassava Brown Streak Disease class. It is about 3.5%  from class volume.",
      "votes": null
    },
    {
      "id": "1091558",
      "postDate": "11/26/2020 05:30:12",
      "content": "<p>one way to tackle this problem is to use mixture of experts. The ML will automatically learns the subclass.</p>\n<p>related work:<br>\nSoftTriple Loss: Deep Metric Learning Without Triplet Sampling<br>\n<a href=\"https://arxiv.org/abs/1909.05235\" target=\"_blank\">https://arxiv.org/abs/1909.05235</a></p>",
      "rawMarkdown": "one way to tackle this problem is to use mixture of experts. The ML will automatically learns the subclass.\n\nrelated work:\nSoftTriple Loss: Deep Metric Learning Without Triplet Sampling\nhttps://arxiv.org/abs/1909.05235",
      "votes": null
    },
    {
      "id": "1092497",
      "postDate": "11/26/2020 22:15:17",
      "content": "<p>Is this leaf disease classification or plant disease classification or tree disease classification? Take a look at images. When we say \"leaf disease classification\" that should mean that every image contains only one leaf, right?</p>",
      "rawMarkdown": "Is this leaf disease classification or plant disease classification or tree disease classification? Take a look at images. When we say \"leaf disease classification\" that should mean that every image contains only one leaf, right?",
      "votes": null
    },
    {
      "id": "1096119",
      "postDate": "11/30/2020 08:20:30",
      "content": "<p>Hi <a href=\"https://www.kaggle.com/isaienkov\" target=\"_blank\">@isaienkov</a> , I think these are the roots/tubules of the Cassava plant ,  they are also source of food and have a high starch content and the diseases can affect them as well <br>\n<code>Cassava is cultivated as a tuberous root crop and its roots (Fig. 1) are the major source of dietary starch. The tubers are eaten fresh and in various forms of processed food</code></p>\n<p><img src=\"https://www.apsnet.org/edcenter/apsnetfeatures/PublishingImages/2011features/cassava1sm.jpg\" alt=\"\"></p>\n<p>More can be read <a href=\"https://www.apsnet.org/edcenter/apsnetfeatures/Pages/cassava.aspx\" target=\"_blank\">here</a><br>\nIt would be lovely to know your views on this</p>",
      "rawMarkdown": "Hi @isaienkov , I think these are the roots/tubules of the Cassava plant ,  they are also source of food and have a high starch content and the diseases can affect them as well \n`Cassava is cultivated as a tuberous root crop and its roots (Fig. 1) are the major source of dietary starch. The tubers are eaten fresh and in various forms of processed food`\n\n![](https://www.apsnet.org/edcenter/apsnetfeatures/PublishingImages/2011features/cassava1sm.jpg)\n\nMore can be read [here](https://www.apsnet.org/edcenter/apsnetfeatures/Pages/cassava.aspx)\nIt would be lovely to know your views on this",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 1088755,
      "author_name": "isaienkov",
      "author_url": "",
      "post_date": "11/23/2020 23:03:52",
      "content": "<p>I will try to add all similar samples into my <a href=\"https://www.kaggle.com/isaienkov/cassava-leaf-disease-classification-data-analysis\">kernel</a>.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 1088841,
      "author_name": "gcspkmdr",
      "author_url": "",
      "post_date": "11/24/2020 01:38:25",
      "content": "<p>Good Find. The point to note is these are not leaves and seems like something that is readily consumable. And if this is true, identification of disease in such cases is happening very late in the plant's lifecycle.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 1088866,
      "author_name": "dldmw579",
      "author_url": "",
      "post_date": "11/24/2020 02:18:51",
      "content": "<p>Don't know whether this will happen in the test set…🙀</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 1089734,
      "author_name": "isaienkov",
      "author_url": "",
      "post_date": "11/24/2020 18:19:50",
      "content": "<p>I prepared full list of similar samples in <a href=\"https://www.kaggle.com/isaienkov/cassava-leaf-disease-classification-data-analysis/\" target=\"_blank\">https://www.kaggle.com/isaienkov/cassava-leaf-disease-classification-data-analysis/</a> .</p>\n<p>Totally we have 76 similar samples in Cassava Brown Streak Disease class. It is about 3.5%  from class volume.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 1091558,
      "author_name": "hengck23",
      "author_url": "",
      "post_date": "11/26/2020 05:30:12",
      "content": "<p>one way to tackle this problem is to use mixture of experts. The ML will automatically learns the subclass.</p>\n<p>related work:<br>\nSoftTriple Loss: Deep Metric Learning Without Triplet Sampling<br>\n<a href=\"https://arxiv.org/abs/1909.05235\" target=\"_blank\">https://arxiv.org/abs/1909.05235</a></p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 1092497,
      "author_name": "alem88",
      "author_url": "",
      "post_date": "11/26/2020 22:15:17",
      "content": "<p>Is this leaf disease classification or plant disease classification or tree disease classification? Take a look at images. When we say \"leaf disease classification\" that should mean that every image contains only one leaf, right?</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 1096119,
      "author_name": "tanulsingh077",
      "author_url": "",
      "post_date": "11/30/2020 08:20:30",
      "content": "<p>Hi <a href=\"https://www.kaggle.com/isaienkov\" target=\"_blank\">@isaienkov</a> , I think these are the roots/tubules of the Cassava plant ,  they are also source of food and have a high starch content and the diseases can affect them as well <br>\n<code>Cassava is cultivated as a tuberous root crop and its roots (Fig. 1) are the major source of dietary starch. The tubers are eaten fresh and in various forms of processed food</code></p>\n<p><img src=\"https://www.apsnet.org/edcenter/apsnetfeatures/PublishingImages/2011features/cassava1sm.jpg\" alt=\"\"></p>\n<p>More can be read <a href=\"https://www.apsnet.org/edcenter/apsnetfeatures/Pages/cassava.aspx\" target=\"_blank\">here</a><br>\nIt would be lovely to know your views on this</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "1088743": "I think a lot of players checked dataset first by eyes. And if we check Cassava Brown Streak Disease we can see some number of unusual samples. \n\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F732424%2Ff927d16d5360021b7897ae95055f25c5%2F1338159402.jpg?generation=1606171509455981&alt=media)\n\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F732424%2Ffd0c5d7bad6e01af1fe182b92e1a4b65%2F159654644.jpg?generation=1606171549217835&alt=media)\n\nI think potentially it would be good to make separate subclass for them.\n\nDid anyone faced with this issue and what did you try?",
    "1088755": "I will try to add all similar samples into my <a href=\"https://www.kaggle.com/isaienkov/cassava-leaf-disease-classification-data-analysis\">kernel</a>.",
    "1088841": "Good Find. The point to note is these are not leaves and seems like something that is readily consumable. And if this is true, identification of disease in such cases is happening very late in the plant's lifecycle.",
    "1088866": "Don't know whether this will happen in the test set...🙀",
    "1089734": "I prepared full list of similar samples in https://www.kaggle.com/isaienkov/cassava-leaf-disease-classification-data-analysis/ .\n\nTotally we have 76 similar samples in Cassava Brown Streak Disease class. It is about 3.5%  from class volume.",
    "1091558": "one way to tackle this problem is to use mixture of experts. The ML will automatically learns the subclass.\n\nrelated work:\nSoftTriple Loss: Deep Metric Learning Without Triplet Sampling\nhttps://arxiv.org/abs/1909.05235",
    "1092497": "Is this leaf disease classification or plant disease classification or tree disease classification? Take a look at images. When we say \"leaf disease classification\" that should mean that every image contains only one leaf, right?",
    "1096119": "Hi @isaienkov , I think these are the roots/tubules of the Cassava plant ,  they are also source of food and have a high starch content and the diseases can affect them as well \n`Cassava is cultivated as a tuberous root crop and its roots (Fig. 1) are the major source of dietary starch. The tubers are eaten fresh and in various forms of processed food`\n\n![](https://www.apsnet.org/edcenter/apsnetfeatures/PublishingImages/2011features/cassava1sm.jpg)\n\nMore can be read [here](https://www.apsnet.org/edcenter/apsnetfeatures/Pages/cassava.aspx)\nIt would be lovely to know your views on this"
  },
  "source": "meta"
}