Re: Lucene Help Needed for Doctoral Student

In Lucene 2.4.0 there is *org.apache.lucene.index.TermFreqVector* method *getTermFrequencies()* method. You can use Apache Maths for other mathematical operations. Also see following Blog for more information. Hope this

Ranking Function based on Probabilistic Retrieval Framework

Dear all, Why there is no Ranking function based on Probabilistic Retrieval Framework (ex.Okapi BM25) in Lucene. Actually there is third party implementation of the BM25 Model but it is no longer