{
  "id": 99501,
  "title": "Kappa",
  "url": "/competitions/aptos2019-blindness-detection/discussion/99501",
  "author_name": "",
  "post_date": "2019-07-11T19:07:57.634626200Z",
  "votes": 1,
  "comment_count": 2,
  "views": 0,
  "content": "<p>I want to know about this Kappa metric, and how can I implement this in Keras model? </p>",
  "messages": [
    {
      "id": "573094",
      "postDate": "07/11/2019 19:07:57",
      "content": "<p>I want to know about this Kappa metric, and how can I implement this in Keras model? </p>",
      "rawMarkdown": "I want to know about this Kappa metric, and how can I implement this in Keras model?",
      "votes": null
    },
    {
      "id": "573145",
      "postDate": "07/11/2019 20:59:21",
      "content": "<p>Here's a theoretical overview of Kappa and its history: <a href=\"https://www.researchgate.net/publication/269761788\">https://www.researchgate.net/publication/269761788</a></p>",
      "rawMarkdown": "Here's a theoretical overview of Kappa and its history: https://www.researchgate.net/publication/269761788",
      "votes": null
    },
    {
      "id": "573263",
      "postDate": "07/12/2019 03:32:36",
      "content": "<p><a href=\"https://www.kaggle.com/ashwan1/understanding-kappa-using-dummy-classifier\">Here's a kernel</a> explaining kappa.\nIf you just want to use it as a metric, you can simply use scikit-leanrn's <code>sklearn.metrics.cohen_kappa_score</code>, may be in a callback or after model training. \nIf you want to use kappa as loss, you can have a look <a href=\"https://www.kaggle.com/christofhenkel/weighted-kappa-loss-for-keras-tensorflow\">here.</a></p>",
      "rawMarkdown": "[Here's a kernel](https://www.kaggle.com/ashwan1/understanding-kappa-using-dummy-classifier) explaining kappa.\nIf you just want to use it as a metric, you can simply use scikit-leanrn's `sklearn.metrics.cohen_kappa_score`, may be in a callback or after model training. \nIf you want to use kappa as loss, you can have a look [here.](https://www.kaggle.com/christofhenkel/weighted-kappa-loss-for-keras-tensorflow)",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 573145,
      "author_name": "claurin1",
      "author_url": "",
      "post_date": "07/11/2019 20:59:21",
      "content": "<p>Here's a theoretical overview of Kappa and its history: <a href=\"https://www.researchgate.net/publication/269761788\">https://www.researchgate.net/publication/269761788</a></p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 573263,
      "author_name": "ashwan1",
      "author_url": "",
      "post_date": "07/12/2019 03:32:36",
      "content": "<p><a href=\"https://www.kaggle.com/ashwan1/understanding-kappa-using-dummy-classifier\">Here's a kernel</a> explaining kappa.\nIf you just want to use it as a metric, you can simply use scikit-leanrn's <code>sklearn.metrics.cohen_kappa_score</code>, may be in a callback or after model training. \nIf you want to use kappa as loss, you can have a look <a href=\"https://www.kaggle.com/christofhenkel/weighted-kappa-loss-for-keras-tensorflow\">here.</a></p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "573094": "I want to know about this Kappa metric, and how can I implement this in Keras model?",
    "573145": "Here's a theoretical overview of Kappa and its history: https://www.researchgate.net/publication/269761788",
    "573263": "[Here's a kernel](https://www.kaggle.com/ashwan1/understanding-kappa-using-dummy-classifier) explaining kappa.\nIf you just want to use it as a metric, you can simply use scikit-leanrn's `sklearn.metrics.cohen_kappa_score`, may be in a callback or after model training. \nIf you want to use kappa as loss, you can have a look [here.](https://www.kaggle.com/christofhenkel/weighted-kappa-loss-for-keras-tensorflow)"
  },
  "source": "meta"
}