I see many notebooks setting mean = [0.5, 0.5, 0.5] and std = [0.5, 0.5, 0.5], the setting attual impact on this competition?
", "messages": [ { "id": 2111430, "postDate": "2023-01-22T22:22:24.593Z", "content": "As stated by @aliabdin1, try to compute these statistics on the current dataset.
\nThat being said, so far these don't have an important impact on my models.
Thank you for your answer.
", "rawMarkdown": "Thank you for your answer." } ] }, { "id": 2111210, "postDate": "2023-01-22T17:31:29.400Z", "content": "You can calculate these means + stds yourself and try if you can achieve any improvement, see e.g.:
\nhttps://www.kaggle.com/code/aliabdin1/calculate-mean-std-of-images
Or you can easily test if these settings are useful by taking a normalized image, check if its (channelwise) means are 0 and stds 1 or very close to it.
", "rawMarkdown": "You can calculate these means + stds yourself and try if you can achieve any improvement, see e.g.:\nhttps://www.kaggle.com/code/aliabdin1/calculate-mean-std-of-images\n\nOr you can easily test if these settings are useful by taking a normalized image, check if its (channelwise) means are 0 and stds 1 or very close to it.", "votes": 1, "replies": [ { "id": 2111637, "postDate": "2023-01-23T03:49:17.623Z", "content": "Thank you for your comment.
", "rawMarkdown": "Thank you for your comment." } ] }, { "id": 2109637, "postDate": "2023-01-21T14:54:49.077Z", "content": "For me, the setting made my CV worse.
", "rawMarkdown": "For me, the setting made my CV worse.", "votes": 1 }, { "id": 2109242, "postDate": "2023-01-21T08:14:28.417Z", "content": "I see many notebooks setting mean = [0.5, 0.5, 0.5] and std = [0.5, 0.5, 0.5], the setting attual impact on this competition?
", "rawMarkdown": "I see many notebooks setting mean = [0.5, 0.5, 0.5] and std = [0.5, 0.5, 0.5], the setting attual impact on this competition?", "votes": 2 } ], "comments": [ { "id": 2111430, "author_name": "Yassine Alouini", "author_url": "", "post_date": "2023-01-22T22:22:24.593000", "content": "As stated by @aliabdin1, try to compute these statistics on the current dataset.
\nThat being said, so far these don't have an important impact on my models.
Thank you for your answer.
", "votes": 0, "replies": [] } ] }, { "id": 2111210, "author_name": "Ali Abdin", "author_url": "", "post_date": "2023-01-22T17:31:29.400000", "content": "You can calculate these means + stds yourself and try if you can achieve any improvement, see e.g.:
\nhttps://www.kaggle.com/code/aliabdin1/calculate-mean-std-of-images
Or you can easily test if these settings are useful by taking a normalized image, check if its (channelwise) means are 0 and stds 1 or very close to it.
", "votes": 1, "replies": [ { "id": 2111637, "author_name": "SenTran", "author_url": "", "post_date": "2023-01-23T03:49:17.623000", "content": "Thank you for your comment.
", "votes": 0, "replies": [] } ] }, { "id": 2109637, "author_name": "taruto", "author_url": "", "post_date": "2023-01-21T14:54:49.077000", "content": "For me, the setting made my CV worse.
", "votes": 1, "replies": [] } ], "raw_markdown_by_id": { "2111430": "As stated by @aliabdin1, try to compute these statistics on the current dataset. \nThat being said, so far these don't have an important impact on my models.", "2111210": "You can calculate these means + stds yourself and try if you can achieve any improvement, see e.g.:\nhttps://www.kaggle.com/code/aliabdin1/calculate-mean-std-of-images\n\nOr you can easily test if these settings are useful by taking a normalized image, check if its (channelwise) means are 0 and stds 1 or very close to it.", "2109637": "For me, the setting made my CV worse.", "2109242": "I see many notebooks setting mean = [0.5, 0.5, 0.5] and std = [0.5, 0.5, 0.5], the setting attual impact on this competition?" } }