I think something like this (NOTE: not at all tested, and I have no real experience with function queries):
ValueSource vals = new MyPageRankScores(...); ValueSourceQuery prQuery = new ValueSourceQuery(vals); Query realQuery = get-user's-query; Query q = new CustomScoreQuery(realQuery, prQuery); TopDocs hits = searcher.search(q, 10); MyPageRankScores is your class, subclassing ValueSource and implementing the getValues method. You could subclass CustomScoreQuery if you want to tweak just how the "real" Query scores and your page-rank scores are combined. Mike On Fri, Apr 24, 2009 at 5:20 AM, Marcus Herou <marcus.he...@tailsweep.com> wrote: > Yes I am thinking of something like that. > > Could you elaborate on how that would look like pseudo wise ? > > Kindly > > //Marcus > > On Fri, Apr 24, 2009 at 9:05 AM, Michael McCandless < > luc...@mikemccandless.com> wrote: > >> Could function queries be used here? EG you could implement a >> ValueSource that pulls in the external scores? >> >> Mike >> >> On Thu, Apr 23, 2009 at 4:01 PM, Marcus Herou >> <marcus.he...@tailsweep.com> wrote: >> > Hi. >> > >> > Confusing subject eh ? Trying to become a little clearer in a few >> sentences. >> > >> > We have a Solr/Lucene index where each document is a Blog Entry. We have >> > just implemented the PageRank algorithm for Blogs and are about to add a >> > column to the index called score and perhaps adjust the document boost. >> > >> > We have as well decided that it is the blog itself and not the individual >> > pages that are to be ranked so all entries belonging to one blog will >> > receive the same score. >> > >> > I have not found a way to apply a document score without actually >> > re-indexing all fields in the affected entries (could very well be 100% >> at >> > every PageRank recalculation) and this will of course take hell of a long >> > time to reindex which effectively will render the process useless since >> it >> > would take a week or of reindexing as of current and will take more and >> more >> > time. (100M blog entries as of current and rapidly increasing). >> > >> > Guess we have run into the issue where we have some "static" data which >> we >> > do not want to touch at all but we want to update certain "dynamic" >> fields. >> > >> > Lucene is not a database I know but is there a way to implement external >> > search-time scoring or update individual fields ? Would there be a >> > possibilty to do some kind of join (parallell searches separate index >> types) >> > ? or send the result to a separate sorting algorithm ? Hmmm.... Perhaps a >> > subclass of Sort ? Grasping at straws here folks... >> > >> > Hope anyone of the core experts can help us. >> > >> > Cheers >> > >> > //Marcus Herou >> > >> > >> > >> > -- >> > Marcus Herou CTO and co-founder Tailsweep AB >> > +46702561312 >> > marcus.he...@tailsweep.com >> > http://www.tailsweep.com/ >> > http://blogg.tailsweep.com/ >> > >> > > > > -- > Marcus Herou CTO and co-founder Tailsweep AB > +46702561312 > marcus.he...@tailsweep.com > http://www.tailsweep.com/ > http://blogg.tailsweep.com/ >
