Talk:Weissman score
Add topicLatest comment: 5 years ago by 96.87.87.25 in topic Rationale & criticism
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Damn
Rationale & criticism
[edit]Why was the formula built this way ?
Factoring in compression time obviously makes sense for any pragmatic purpose, but the rest...
- The log seems to be to keep the figures at bay, since compression times vary wildly.
But shouldn't it happen after the time ratio ? Before is responsible for time unit changing the result.
Shouldn't it happen after the size ratio too ? Before means a compressor reaching half the size in twice the time gets a lower score. - Does a ratio of compression ratios make sense ?
Isn't that the same as (reference compressed size / benchmarked compressed size) ? - Why include a scaling in the formula ? Moreover an undefined one ?
All these make the scores less comparable between runs.
All things considered, this formula looks like a botched job.--Musaran (talk) 11:58, 1 January 2020 (UTC)
- We'd need an interview for a citation, but I'd bet the answer to all of these is "it was made for TV".
- It should be pretty obvious though that the "perfect" algorithm according to this score is just "return the input as-is, then wait for 1 {time unit}". You'll always end up with infinite score compared to any other algorithm. 96.87.87.25 (talk) 18:29, 8 October 2020 (UTC)