{
  "id": 63535,
  "title": "Mislabeled training data?",
  "url": "/competitions/airbus-ship-detection/discussion/63535",
  "author_name": "Georgi Babayan",
  "post_date": "2018-08-17T20:13:10.200000",
  "votes": 1,
  "comment_count": 3,
  "views": 0,
  "content": "<p>So I was looking at some posted kernels and noticed errors on one of the images. The image in question is 00021ddc3.jpg. If you look at this image then in the lower left corner you'll see 2 docks, let's call them a dock A and dock B (A being the closest to the edge of the image). If you look at the masks corresponding tot he image, you'll see that as far as dock A is concerned, both the dock and the ship next to it are labeled as ships. If you look at the dock B, then you'll see that a cluster of boats on one side is label as ships, but a large ship on the other side is not labeled at all. At this point I am not sure how many images are mislabeled, but I figured that it wouldn't hurt to make this point and make people aware.</p>",
  "messages": [
    {
      "id": 371914,
      "postDate": "2018-08-17T20:13:10.200Z",
      "content": "<p>So I was looking at some posted kernels and noticed errors on one of the images. The image in question is 00021ddc3.jpg. If you look at this image then in the lower left corner you'll see 2 docks, let's call them a dock A and dock B (A being the closest to the edge of the image). If you look at the masks corresponding tot he image, you'll see that as far as dock A is concerned, both the dock and the ship next to it are labeled as ships. If you look at the dock B, then you'll see that a cluster of boats on one side is label as ships, but a large ship on the other side is not labeled at all. At this point I am not sure how many images are mislabeled, but I figured that it wouldn't hurt to make this point and make people aware.</p>",
      "rawMarkdown": "So I was looking at some posted kernels and noticed errors on one of the images. The image in question is 00021ddc3.jpg. If you look at this image then in the lower left corner you'll see 2 docks, let's call them a dock A and dock B (A being the closest to the edge of the image). If you look at the masks corresponding tot he image, you'll see that as far as dock A is concerned, both the dock and the ship next to it are labeled as ships. If you look at the dock B, then you'll see that a cluster of boats on one side is label as ships, but a large ship on the other side is not labeled at all. At this point I am not sure how many images are mislabeled, but I figured that it wouldn't hurt to make this point and make people aware.",
      "votes": 1
    },
    {
      "id": 371930,
      "postDate": "2018-08-17T21:06:02.577Z",
      "content": "<p>Are you sure that's a ship and not a building on a second dock just above dock B with a blue roof?</p>",
      "rawMarkdown": "Are you sure that's a ship and not a building on a second dock just above dock B with a blue roof?",
      "replies": [
        {
          "id": 371933,
          "postDate": "2018-08-17T21:20:52.340Z",
          "content": "<p>I'm not 100% sure, but it would be very odd to put a building there and limit your dock to 1 side. Also, the fact that the building would extend past the dock into the ocean makes it in my view even less likely.  Even if it is a building on dock B, the dock A is clearly wrong.</p>",
          "rawMarkdown": "I'm not 100% sure, but it would be very odd to put a building there and limit your dock to 1 side. Also, the fact that the building would extend past the dock into the ocean makes it in my view even less likely.  Even if it is a building on dock B, the dock A is clearly wrong."
        }
      ]
    },
    {
      "id": 375063,
      "postDate": "2018-08-24T13:56:44.010Z",
      "rawMarkdown": "",
      "isDeleted": true
    }
  ],
  "comments": [
    {
      "id": 371930,
      "author_name": "Paul Johnson",
      "author_url": "",
      "post_date": "2018-08-17T21:06:02.577000",
      "content": "<p>Are you sure that's a ship and not a building on a second dock just above dock B with a blue roof?</p>",
      "votes": 0,
      "replies": [
        {
          "id": 371933,
          "author_name": "Georgi Babayan",
          "author_url": "",
          "post_date": "2018-08-17T21:20:52.340000",
          "content": "<p>I'm not 100% sure, but it would be very odd to put a building there and limit your dock to 1 side. Also, the fact that the building would extend past the dock into the ocean makes it in my view even less likely.  Even if it is a building on dock B, the dock A is clearly wrong.</p>",
          "votes": 0,
          "replies": []
        }
      ]
    },
    {
      "id": 375063,
      "author_name": "",
      "author_url": "",
      "post_date": "2018-08-24T13:56:44.010000",
      "content": "",
      "votes": 0,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "371914": "So I was looking at some posted kernels and noticed errors on one of the images. The image in question is 00021ddc3.jpg. If you look at this image then in the lower left corner you'll see 2 docks, let's call them a dock A and dock B (A being the closest to the edge of the image). If you look at the masks corresponding tot he image, you'll see that as far as dock A is concerned, both the dock and the ship next to it are labeled as ships. If you look at the dock B, then you'll see that a cluster of boats on one side is label as ships, but a large ship on the other side is not labeled at all. At this point I am not sure how many images are mislabeled, but I figured that it wouldn't hurt to make this point and make people aware.",
    "371930": "Are you sure that's a ship and not a building on a second dock just above dock B with a blue roof?",
    "375063": ""
  }
}