kojiro's blog

Why do ratings take so much time to update?
By kojiro, history, 9 months ago, In English

Hello codeforces community! I hope you all are doing well. I was wondering why problem ratings are taking so much time to update. It has been over 3 weeks since edu round 154 and over 2 weeks since round 895, yet the ratings of the problems have not been updated. Please let me know if anyone is aware of why this is taking place!

Thank you!

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9 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Auto comment: topic has been updated by kojiro (previous revision, new revision, compare).

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9 months ago, # |
  Vote: I like it +49 Vote: I do not like it

Why do problem ratings take so much time to update?

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9 months ago, # |
  Vote: I like it +51 Vote: I do not like it

This is a good question, so I don't know why this is being downvoted. In the recent past, problem ratings used to come out at a much faster rate.

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    9 months ago, # ^ |
      Vote: I like it +13 Vote: I do not like it

    Cuz, It is looking like another blog that is asking about the person's rating.

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    9 months ago, # ^ |
      Vote: I like it +3 Vote: I do not like it

    Some people, unfortunately, as soon as they see a low-rated person, they do a “Down Vote” without any thinking, and also if it is a “High Rated” person write anything even "Spam", they give them a large Up Vote without providing value, perhaps if the same content comes from a low-rated person, they take a high “Down Vote”.

    By the way, I expect this comment will receive a large number of “Down votes”.

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9 months ago, # |
  Vote: I like it +23 Vote: I do not like it

Because there are a lot of participants and therefore a big expected number of cheaters. Currently the anticheat mechanisms on Codeforces are semiautomatic, they include a lot of code reading which Mike seems to do himself. This is to minimize the risks of type I errors.

In Div. 1 rounds there are much less participants, therefore much less manual work, and the ratings are out there shortly after the system testing.

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    9 months ago, # ^ |
      Vote: I like it +3 Vote: I do not like it

    Damn I see. Must be quite difficult for Mike to do it by himself.

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