{
  "id": 417375,
  "title": "A question regarding the evaluation metric",
  "url": "/competitions/asl-fingerspelling/discussion/417375",
  "author_name": "greySnow",
  "post_date": "2023-06-15T12:52:05.985000",
  "votes": 1,
  "comment_count": 7,
  "views": 0,
  "content": "<p>If D (the Levenshtein distance) is larger than N (the total number of characters in the labels), does the normalized total Levenshtein distance truncated at zero or become negative? This can happen when the predicted phrase is much longer than the label.</p>",
  "messages": [
    {
      "id": 2303990,
      "postDate": "2023-06-15T15:51:02.430Z",
      "content": "<p>It's clipped at zero.</p>",
      "rawMarkdown": "It's clipped at zero.",
      "votes": 1,
      "replies": [
        {
          "id": 2304056,
          "postDate": "2023-06-15T16:35:42.430Z",
          "content": "<p>Thank you!</p>",
          "rawMarkdown": "Thank you!"
        },
        {
          "id": 2304160,
          "postDate": "2023-06-15T18:11:28.440Z",
          "content": "<p>It clipped for each string or for all after takes mean?</p>",
          "rawMarkdown": "It clipped for each string or for all after takes mean?",
          "replies": [
            {
              "id": 2304177,
              "postDate": "2023-06-15T18:33:16.363Z",
              "content": "<p>D and N are the global sums, so there's only one value to clip.</p>",
              "rawMarkdown": "D and N are the global sums, so there's only one value to clip.",
              "votes": 1
            }
          ]
        }
      ]
    },
    {
      "id": 2303739,
      "postDate": "2023-06-15T12:52:05.987Z",
      "content": "<p>If D (the Levenshtein distance) is larger than N (the total number of characters in the labels), does the normalized total Levenshtein distance truncated at zero or become negative? This can happen when the predicted phrase is much longer than the label.</p>",
      "rawMarkdown": "If D (the Levenshtein distance) is larger than N (the total number of characters in the labels), does the normalized total Levenshtein distance truncated at zero or become negative? This can happen when the predicted phrase is much longer than the label.",
      "votes": 1
    },
    {
      "id": 2303740,
      "postDate": "2023-06-15T12:55:53.390Z",
      "content": "<p>On the leaderboard, the minimum (displayed) value is 0.</p>",
      "rawMarkdown": "On the leaderboard, the minimum (displayed) value is 0.",
      "replies": [
        {
          "id": 2303767,
          "postDate": "2023-06-15T13:15:00.130Z",
          "content": "<p>I know, but it can be the case that only the total AVERAGE score is truncated at zero. I want to know if each score is truncated before the averaging.</p>",
          "rawMarkdown": "I know, but it can be the case that only the total AVERAGE score is truncated at zero. I want to know if each score is truncated before the averaging.",
          "replies": [
            {
              "id": 2304089,
              "postDate": "2023-06-15T17:09:04.277Z",
              "content": "<p>In this case D and N are the global sums, so there's only one value to clip.</p>",
              "rawMarkdown": "In this case D and N are the global sums, so there's only one value to clip.",
              "votes": 1
            }
          ]
        }
      ]
    }
  ],
  "comments": [
    {
      "id": 2303990,
      "author_name": "Sohier Dane",
      "author_url": "",
      "post_date": "2023-06-15T15:51:02.430000",
      "content": "<p>It's clipped at zero.</p>",
      "votes": 1,
      "replies": [
        {
          "id": 2304056,
          "author_name": "greySnow",
          "author_url": "",
          "post_date": "2023-06-15T16:35:42.430000",
          "content": "<p>Thank you!</p>",
          "votes": 0,
          "replies": []
        },
        {
          "id": 2304160,
          "author_name": "Kolya Forrat",
          "author_url": "",
          "post_date": "2023-06-15T18:11:28.440000",
          "content": "<p>It clipped for each string or for all after takes mean?</p>",
          "votes": 0,
          "replies": [
            {
              "id": 2304177,
              "author_name": "Sohier Dane",
              "author_url": "",
              "post_date": "2023-06-15T18:33:16.363000",
              "content": "<p>D and N are the global sums, so there's only one value to clip.</p>",
              "votes": 1,
              "replies": []
            }
          ]
        }
      ]
    },
    {
      "id": 2303740,
      "author_name": "Mathieu De Coster",
      "author_url": "",
      "post_date": "2023-06-15T12:55:53.390000",
      "content": "<p>On the leaderboard, the minimum (displayed) value is 0.</p>",
      "votes": 0,
      "replies": [
        {
          "id": 2303767,
          "author_name": "greySnow",
          "author_url": "",
          "post_date": "2023-06-15T13:15:00.130000",
          "content": "<p>I know, but it can be the case that only the total AVERAGE score is truncated at zero. I want to know if each score is truncated before the averaging.</p>",
          "votes": 0,
          "replies": [
            {
              "id": 2304089,
              "author_name": "Sohier Dane",
              "author_url": "",
              "post_date": "2023-06-15T17:09:04.277000",
              "content": "<p>In this case D and N are the global sums, so there's only one value to clip.</p>",
              "votes": 1,
              "replies": []
            }
          ]
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "2303990": "It's clipped at zero.",
    "2303739": "If D (the Levenshtein distance) is larger than N (the total number of characters in the labels), does the normalized total Levenshtein distance truncated at zero or become negative? This can happen when the predicted phrase is much longer than the label.",
    "2303740": "On the leaderboard, the minimum (displayed) value is 0."
  }
}