{
  "id": 64644,
  "title": "Duplicate entries in detailed_class_info.csv",
  "url": "/competitions/rsna-pneumonia-detection-challenge/discussion/64644",
  "author_name": "",
  "post_date": "2018-08-31T04:59:11.589707600Z",
  "votes": null,
  "comment_count": 3,
  "views": 0,
  "content": "<p>There are many duplicate entries in <code>stage_1_detailed_class_info.csv</code>. I think one entry for each patientId. The competition organizers should clarify this issue.</p>",
  "messages": [
    {
      "id": "379255",
      "postDate": "08/31/2018 04:59:11",
      "content": "<p>There are many duplicate entries in <code>stage_1_detailed_class_info.csv</code>. I think one entry for each patientId. The competition organizers should clarify this issue.</p>",
      "rawMarkdown": "There are many duplicate entries in `stage_1_detailed_class_info.csv`. I think one entry for each patientId. The competition organizers should clarify this issue.",
      "votes": null
    },
    {
      "id": "379581",
      "postDate": "08/31/2018 15:28:00",
      "content": "<p>Number of records in stage_1_detailed_class_info and stage_1_train_labels are equal. stage_1_train_labels may have multiple records / several box for class 'Lung Opacity' and only one record for other classes. </p>\n\n<p>Maybe organizers did not check for dupicates records, or they planned using bounding boxes for several classes, which is not the case - we have only bounding boxes for single class.\nI think you can simple drop duplicates or merge with stage_1_train_labels.</p>",
      "rawMarkdown": "Number of records in stage_1_detailed_class_info and stage_1_train_labels are equal. stage_1_train_labels may have multiple records / several box for class 'Lung Opacity' and only one record for other classes. \n\nMaybe organizers did not check for dupicates records, or they planned using bounding boxes for several classes, which is not the case - we have only bounding boxes for single class.\nI think you can simple drop duplicates or merge with stage_1_train_labels.",
      "votes": null
    },
    {
      "id": "381414",
      "postDate": "09/04/2018 16:02:49",
      "content": "<p>Detailed class info is provided for all images and all <em>bounding boxes</em>.  They do not differ across bounding boxes - if a bounding box is present, only one class is possible - but I felt including all details would be more useful than not.  Every row in stage_1_train_labels.csv therefore has a matching row in stage_1_detailed_class_info.csv.</p>",
      "rawMarkdown": "Detailed class info is provided for all images and all *bounding boxes*.  They do not differ across bounding boxes - if a bounding box is present, only one class is possible - but I felt including all details would be more useful than not.  Every row in stage_1_train_labels.csv therefore has a matching row in stage_1_detailed_class_info.csv.",
      "votes": null
    },
    {
      "id": "381468",
      "postDate": "09/04/2018 17:17:02",
      "content": "<p>Thank you for your clarification.</p>",
      "rawMarkdown": "Thank you for your clarification.",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 379581,
      "author_name": "alexfir",
      "author_url": "",
      "post_date": "08/31/2018 15:28:00",
      "content": "<p>Number of records in stage_1_detailed_class_info and stage_1_train_labels are equal. stage_1_train_labels may have multiple records / several box for class 'Lung Opacity' and only one record for other classes. </p>\n\n<p>Maybe organizers did not check for dupicates records, or they planned using bounding boxes for several classes, which is not the case - we have only bounding boxes for single class.\nI think you can simple drop duplicates or merge with stage_1_train_labels.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 381414,
      "author_name": "philculliton",
      "author_url": "",
      "post_date": "09/04/2018 16:02:49",
      "content": "<p>Detailed class info is provided for all images and all <em>bounding boxes</em>.  They do not differ across bounding boxes - if a bounding box is present, only one class is possible - but I felt including all details would be more useful than not.  Every row in stage_1_train_labels.csv therefore has a matching row in stage_1_detailed_class_info.csv.</p>",
      "votes": null,
      "replies": [
        {
          "id": 381468,
          "author_name": "tonyyy",
          "author_url": "",
          "post_date": "09/04/2018 17:17:02",
          "content": "<p>Thank you for your clarification.</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "379255": "There are many duplicate entries in `stage_1_detailed_class_info.csv`. I think one entry for each patientId. The competition organizers should clarify this issue.",
    "379581": "Number of records in stage_1_detailed_class_info and stage_1_train_labels are equal. stage_1_train_labels may have multiple records / several box for class 'Lung Opacity' and only one record for other classes. \n\nMaybe organizers did not check for dupicates records, or they planned using bounding boxes for several classes, which is not the case - we have only bounding boxes for single class.\nI think you can simple drop duplicates or merge with stage_1_train_labels.",
    "381414": "Detailed class info is provided for all images and all *bounding boxes*.  They do not differ across bounding boxes - if a bounding box is present, only one class is possible - but I felt including all details would be more useful than not.  Every row in stage_1_train_labels.csv therefore has a matching row in stage_1_detailed_class_info.csv.",
    "381468": "Thank you for your clarification."
  },
  "source": "meta"
}