{
  "id": 20636,
  "title": " Another virtual problem ?!",
  "url": "/competitions/draper-satellite-image-chronology/discussion/20636",
  "author_name": "Paulo Pinto",
  "post_date": "2016-05-02T18:56:02.060000",
  "votes": 0,
  "comment_count": 7,
  "views": 1399,
  "content": "<p>Kaggle us again proposes a problem that does not exist in the real world !</p>\n\n<p>All image capture systems by default record the location and the date and time of each photo . So the problem proposed by DRAPER simply does not exist in the real world . ( Unless someone sabotage the database )</p>\n\n<p>Someone took the trouble to change the date and time of creation of files and also erased the photos of metadata simply to create a virtual problem.</p>\n\n<p>Why not keep the temporal data and propose a real world problem , that would be the identification of a possible or likely change between the photos taken from the same place al over time?</p>",
  "messages": [
    {
      "id": 118055,
      "postDate": "2016-05-02T19:00:17.083Z",
      "content": "<p>It's almost like a test where they don't tell you the answers.</p>",
      "rawMarkdown": "It's almost like a test where they don't tell you the answers.",
      "votes": 7
    },
    {
      "id": 118053,
      "postDate": "2016-05-02T18:56:02.060Z",
      "content": "<p>Kaggle us again proposes a problem that does not exist in the real world !</p>\n\n<p>All image capture systems by default record the location and the date and time of each photo . So the problem proposed by DRAPER simply does not exist in the real world . ( Unless someone sabotage the database )</p>\n\n<p>Someone took the trouble to change the date and time of creation of files and also erased the photos of metadata simply to create a virtual problem.</p>\n\n<p>Why not keep the temporal data and propose a real world problem , that would be the identification of a possible or likely change between the photos taken from the same place al over time?</p>",
      "rawMarkdown": "Kaggle us again proposes a problem that does not exist in the real world !\r\n\r\nAll image capture systems by default record the location and the date and time of each photo . So the problem proposed by DRAPER simply does not exist in the real world . ( Unless someone sabotage the database )\r\n\r\nSomeone took the trouble to change the date and time of creation of files and also erased the photos of metadata simply to create a virtual problem.\r\n\r\nWhy not keep the temporal data and propose a real world problem , that would be the identification of a possible or likely change between the photos taken from the same place al over time?\r\n\r\n\r\n"
    },
    {
      "id": 118460,
      "postDate": "2016-05-03T19:48:10.460Z",
      "content": "<p>The images may have been taken from Google Maps, on different days and with different levels of zoom and different angles , but even in this case the date of each image is known . Through Google Earth can see the date of the images.</p>\n\n<p>Even that does not have control of the source of the images the chronology is not the main problem. I continue with the view that the problem could have been better formulated and collective intelligence better harnessed to a more real problem.</p>",
      "rawMarkdown": "\r\nThe images may have been taken from Google Maps, on different days and with different levels of zoom and different angles , but even in this case the date of each image is known . Through Google Earth can see the date of the images.\r\n\r\nEven that does not have control of the source of the images the chronology is not the main problem. I continue with the view that the problem could have been better formulated and collective intelligence better harnessed to a more real problem."
    },
    {
      "id": 119067,
      "postDate": "2016-05-07T00:12:29.717Z",
      "content": "<p>[quote=the1owl;118990]</p>\n\n<p>Has anyone explored the <a href=\"https://en.wikipedia.org/wiki/Steganography\">Steganography</a> of the images :)</p>\n\n<p>[/quote]</p>\n\n<p>Do you think there is a secret message embedded in the images telling us the right order? </p>",
      "rawMarkdown": "[quote=the1owl;118990]\r\n\r\nHas anyone explored the [Steganography][1] of the images :)\r\n\r\n\r\n  [1]: https://en.wikipedia.org/wiki/Steganography\r\n\r\n[/quote]\r\n\r\nDo you think there is a secret message embedded in the images telling us the right order? "
    },
    {
      "id": 118385,
      "postDate": "2016-05-03T13:43:51.120Z",
      "content": "<p>[quote=Paulo Pinto;118053]</p>\n\n<p>Kaggle us again proposes a problem that does not exist in the real world !</p>\n\n<p>All image capture systems by default record the location and the date and time of each photo . So the problem proposed by DRAPER simply does not exist in the real world . ( Unless someone sabotage the database )</p>\n\n<p>Someone took the trouble to change the date and time of creation of files and also erased the photos of metadata simply to create a virtual problem.</p>\n\n<p>Why not keep the temporal data and propose a real world problem , that would be the identification of a possible or likely change between the photos taken from the same place al over time?</p>\n\n<p>[/quote]</p>\n\n<p>I think this problem is realistic, even with pictures with labelled dates, it is sometimes difficult to know what has changed.  It usually involves a lot work to figure what has significantly changed between the images that is independent of the angle which the photograph was taken. </p>",
      "rawMarkdown": "[quote=Paulo Pinto;118053]\r\n\r\nKaggle us again proposes a problem that does not exist in the real world !\r\n\r\nAll image capture systems by default record the location and the date and time of each photo . So the problem proposed by DRAPER simply does not exist in the real world . ( Unless someone sabotage the database )\r\n\r\nSomeone took the trouble to change the date and time of creation of files and also erased the photos of metadata simply to create a virtual problem.\r\n\r\nWhy not keep the temporal data and propose a real world problem , that would be the identification of a possible or likely change between the photos taken from the same place al over time?\r\n\r\n\r\n\r\n\r\n[/quote]\r\n\r\nI think this problem is realistic, even with pictures with labelled dates, it is sometimes difficult to know what has changed.  It usually involves a lot work to figure what has significantly changed between the images that is independent of the angle which the photograph was taken. "
    },
    {
      "id": 118114,
      "postDate": "2016-05-02T21:44:26.807Z",
      "content": "<p>This was already being discussed in the forum. Thera are ton of image sources where EXIF data is being striped from the images. Maybe they want to use the image source they do not control.</p>",
      "rawMarkdown": "This was already being discussed in the forum. Thera are ton of image sources where EXIF data is being striped from the images. Maybe they want to use the image source they do not control."
    },
    {
      "id": 119079,
      "postDate": "2016-05-07T02:12:50.610Z",
      "rawMarkdown": "",
      "votes": 1,
      "isDeleted": true
    },
    {
      "id": 118990,
      "postDate": "2016-05-06T15:18:31.683Z",
      "rawMarkdown": "",
      "isDeleted": true
    }
  ],
  "comments": [
    {
      "id": 118055,
      "author_name": "inversion",
      "author_url": "",
      "post_date": "2016-05-02T19:00:17.083000",
      "content": "<p>It's almost like a test where they don't tell you the answers.</p>",
      "votes": 7,
      "replies": []
    },
    {
      "id": 118460,
      "author_name": "Paulo Pinto",
      "author_url": "",
      "post_date": "2016-05-03T19:48:10.460000",
      "content": "<p>The images may have been taken from Google Maps, on different days and with different levels of zoom and different angles , but even in this case the date of each image is known . Through Google Earth can see the date of the images.</p>\n\n<p>Even that does not have control of the source of the images the chronology is not the main problem. I continue with the view that the problem could have been better formulated and collective intelligence better harnessed to a more real problem.</p>",
      "votes": 0,
      "replies": []
    },
    {
      "id": 119067,
      "author_name": "==>(AL)<==",
      "author_url": "",
      "post_date": "2016-05-07T00:12:29.717000",
      "content": "<p>[quote=the1owl;118990]</p>\n\n<p>Has anyone explored the <a href=\"https://en.wikipedia.org/wiki/Steganography\">Steganography</a> of the images :)</p>\n\n<p>[/quote]</p>\n\n<p>Do you think there is a secret message embedded in the images telling us the right order? </p>",
      "votes": 0,
      "replies": []
    },
    {
      "id": 118385,
      "author_name": "predictor",
      "author_url": "",
      "post_date": "2016-05-03T13:43:51.120000",
      "content": "<p>[quote=Paulo Pinto;118053]</p>\n\n<p>Kaggle us again proposes a problem that does not exist in the real world !</p>\n\n<p>All image capture systems by default record the location and the date and time of each photo . So the problem proposed by DRAPER simply does not exist in the real world . ( Unless someone sabotage the database )</p>\n\n<p>Someone took the trouble to change the date and time of creation of files and also erased the photos of metadata simply to create a virtual problem.</p>\n\n<p>Why not keep the temporal data and propose a real world problem , that would be the identification of a possible or likely change between the photos taken from the same place al over time?</p>\n\n<p>[/quote]</p>\n\n<p>I think this problem is realistic, even with pictures with labelled dates, it is sometimes difficult to know what has changed.  It usually involves a lot work to figure what has significantly changed between the images that is independent of the angle which the photograph was taken. </p>",
      "votes": 0,
      "replies": []
    },
    {
      "id": 118114,
      "author_name": "itod",
      "author_url": "",
      "post_date": "2016-05-02T21:44:26.807000",
      "content": "<p>This was already being discussed in the forum. Thera are ton of image sources where EXIF data is being striped from the images. Maybe they want to use the image source they do not control.</p>",
      "votes": 0,
      "replies": []
    },
    {
      "id": 119079,
      "author_name": "",
      "author_url": "",
      "post_date": "2016-05-07T02:12:50.610000",
      "content": "",
      "votes": 1,
      "replies": []
    },
    {
      "id": 118990,
      "author_name": "",
      "author_url": "",
      "post_date": "2016-05-06T15:18:31.683000",
      "content": "",
      "votes": 0,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "118055": "It's almost like a test where they don't tell you the answers.",
    "118053": "Kaggle us again proposes a problem that does not exist in the real world !\r\n\r\nAll image capture systems by default record the location and the date and time of each photo . So the problem proposed by DRAPER simply does not exist in the real world . ( Unless someone sabotage the database )\r\n\r\nSomeone took the trouble to change the date and time of creation of files and also erased the photos of metadata simply to create a virtual problem.\r\n\r\nWhy not keep the temporal data and propose a real world problem , that would be the identification of a possible or likely change between the photos taken from the same place al over time?\r\n\r\n\r\n",
    "118460": "\r\nThe images may have been taken from Google Maps, on different days and with different levels of zoom and different angles , but even in this case the date of each image is known . Through Google Earth can see the date of the images.\r\n\r\nEven that does not have control of the source of the images the chronology is not the main problem. I continue with the view that the problem could have been better formulated and collective intelligence better harnessed to a more real problem.",
    "119067": "[quote=the1owl;118990]\r\n\r\nHas anyone explored the [Steganography][1] of the images :)\r\n\r\n\r\n  [1]: https://en.wikipedia.org/wiki/Steganography\r\n\r\n[/quote]\r\n\r\nDo you think there is a secret message embedded in the images telling us the right order? ",
    "118385": "[quote=Paulo Pinto;118053]\r\n\r\nKaggle us again proposes a problem that does not exist in the real world !\r\n\r\nAll image capture systems by default record the location and the date and time of each photo . So the problem proposed by DRAPER simply does not exist in the real world . ( Unless someone sabotage the database )\r\n\r\nSomeone took the trouble to change the date and time of creation of files and also erased the photos of metadata simply to create a virtual problem.\r\n\r\nWhy not keep the temporal data and propose a real world problem , that would be the identification of a possible or likely change between the photos taken from the same place al over time?\r\n\r\n\r\n\r\n\r\n[/quote]\r\n\r\nI think this problem is realistic, even with pictures with labelled dates, it is sometimes difficult to know what has changed.  It usually involves a lot work to figure what has significantly changed between the images that is independent of the angle which the photograph was taken. ",
    "118114": "This was already being discussed in the forum. Thera are ton of image sources where EXIF data is being striped from the images. Maybe they want to use the image source they do not control.",
    "119079": "",
    "118990": ""
  }
}