: The easiest way to change the tf calculation would be overwriting : tf in an own implementation of Similarity like it's done in : SweetSpotSimilarity. But the average term frequency of the : document is missing. Is there a simple way to get or calc this : number?
there was quite a bit of discussion about this in the archive ... the short answer is no: Lucene doesn't store that stat. the long answer is that you could compute that stat, either while indexing your documents and saving it somewhere your Similarity class knows to look for it, or by walking all fo the TermFreqVectors when opening an index reader, and then set that property on your CustomSimilarity instance before executing any searches. the hope is that in the future "Flexible indexing" (which i only vaguely understand) will make it easier to record/manage stats like this while indexing and have Lucene keep track of them for you as part of hte index itself. -Hoss --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
