Hi
Maybe you could use the pagerank score, possibly modified, as document boost at indexing time. From the javadocs for Document.setBoost(boost) "Sets a boost factor for hits on any field of this document. This value will be multiplied into the score of all hits on this document" so will give you P * R rather than P + R. Should be quick, though. -- Ian. On Wed, May 28, 2008 at 11:02 AM, 过佳 <[EMAIL PROTECTED]> wrote: > hi all , > I have a problem that how to "combine" two score to sort the search > result documents. > for example I have 10 million pages in lucene index , and i know their > pagerank scores. i give a query to it , every docs returned have a > lucene-score, mark it as R (relevant score), and i also have its > pagerank score, mark it as P, what i need is i want to sort the search > result base on the value "P+R". You know if i store the pagerank score in > index and get it every search time , then compute P+R , then sort it , this > way is too slow. in my system , when the search hits 500000 result , the > sort may cost about 20s. > Sorry for my poor english. Anyone has a good idea? > > Best > Jarvis >