On Jan 24, 2008 8:40 AM, Steven Parkes <[EMAIL PROTECTED]> wrote: > I'm curious, why is LogMergePolicy named *Log*MergePolicy? > (Why not ExpMergePolicy? :-) > > Well, I guess it's a matter of perspective. When you look at the way the > algorithm works, the merge decisions are based on a concept of level and > levels are assigned based on the log of the number of documents in a > segment (going back to Ning's equation). When one is in the code, it's > very natural to think/talk about "log-base-merge-factor". > > This does result in the number of documents in segments being > order-of-magnitude/exponentially related so that might have made more > sense to users, so perhaps it wasn't the best decision ...
I could be accurately described either way, but there is precedent for "log" too... log-normal, for example is normal after one takes the log (it could have been called exponential-normal). I also tend to think of our number system as logarithmic in nature rather than exponential. -Yonik --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
