{
  "id": 7204,
  "title": "florescence file ",
  "url": "/competitions/connectomics/discussion/7204",
  "author_name": "",
  "post_date": "2014-02-25T22:28:33.650Z",
  "votes": null,
  "comment_count": 4,
  "views": 919,
  "content": "<p>Hi,</p>\n<p>what does the values in the florescence file signify? are they related to the intensity of pixels &nbsp;of an image?</p>",
  "messages": [
    {
      "id": "39481",
      "postDate": "02/25/2014 22:28:33",
      "content": "<p>Hi,</p>\n<p>what does the values in the florescence file signify? are they related to the intensity of pixels &nbsp;of an image?</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "39498",
      "postDate": "02/26/2014 07:10:23",
      "content": "<p>Exactly (although the scale is arbitrary).</p>\n<p>You can find more info in the chalearn website:<a href=\"http://connectomics.chalearn.org/help/setting\">&nbsp;http://connectomics.chalearn.org/help/setting</a></p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "39527",
      "postDate": "02/26/2014 18:36:26",
      "content": "<p>HI thanks for the answer but in that case what does a negative value mean?</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "39536",
      "postDate": "02/26/2014 19:48:56",
      "content": "<p>Hi,</p>\n<p>From&nbsp;a previous post:</p>\n<p>https://www.kaggle.com/c/connectomics/forums/t/7029/misc-data-code-questions</p>\n<p>[quote=Javier G. Orlandi;38557]</p>\n<p>Hi,</p>\n<p>1) The fluorescence intensity is calculated based on the calcium concentration inside the cell with a saturating function that limits the fluorescence signal to the (0,1) interval. However, there's some noise added to the signal, that can effectively lower it below 0.</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "39541",
      "postDate": "02/26/2014 21:25:43",
      "content": "<p>ok thanks</p>",
      "rawMarkdown": "",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 39498,
      "author_name": "orlandi",
      "author_url": "",
      "post_date": "02/26/2014 07:10:23",
      "content": "<p>Exactly (although the scale is arbitrary).</p>\n<p>You can find more info in the chalearn website:<a href=\"http://connectomics.chalearn.org/help/setting\">&nbsp;http://connectomics.chalearn.org/help/setting</a></p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 39527,
      "author_name": "pawanhv",
      "author_url": "",
      "post_date": "02/26/2014 18:36:26",
      "content": "<p>HI thanks for the answer but in that case what does a negative value mean?</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 39536,
      "author_name": "orlandi",
      "author_url": "",
      "post_date": "02/26/2014 19:48:56",
      "content": "<p>Hi,</p>\n<p>From&nbsp;a previous post:</p>\n<p>https://www.kaggle.com/c/connectomics/forums/t/7029/misc-data-code-questions</p>\n<p>[quote=Javier G. Orlandi;38557]</p>\n<p>Hi,</p>\n<p>1) The fluorescence intensity is calculated based on the calcium concentration inside the cell with a saturating function that limits the fluorescence signal to the (0,1) interval. However, there's some noise added to the signal, that can effectively lower it below 0.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 39541,
      "author_name": "pawanhv",
      "author_url": "",
      "post_date": "02/26/2014 21:25:43",
      "content": "<p>ok thanks</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "39481": "",
    "39498": "",
    "39527": "",
    "39536": "",
    "39541": ""
  },
  "source": "meta"
}