Little I know about GSA, there isn't a distributed solution (old information, not sure if it is still the case), so it is not very easy to scale your search system. Something you can achieve rather easily with a Lucene/Solr implementation. There are other benefits of using an open source solution such as you can see/fix bugs/issues or even write your own extensions by looking at the source code.
If you are worried about support with Lucene/Solr, the committers have formed a company for that, it is probably more cost-effective to pay for support/consulting than paying google for their box (you may have to pay support on top of the "pizza box") my two cents. -John On Fri, Apr 17, 2009 at 9:09 AM, Grant Ingersoll <gsing...@apache.org>wrote: > > On Apr 16, 2009, at 10:22 AM, Vasudevan Comandur wrote: > > Hi, >> >> The question that I am posting in this group may be inappropriate and I >> want to apologize for that. >> > > I wouldn't say it's inappropriate, but I don't know if anyone here could > say with certainty b/c the last time I checked GSA was not an open > platform... > > >> >> My question is, what is the relevance ranking algorithm which is used in >> Google Search Appliance (GSA) because the search >> is predominantly on documents rather than web pages. >> > > AFAIK, they use a Vector Space Model much as Lucene does, but you'd have to > ask them as I don't have anything to point to other than I've heard others > speculate it. > > > >> >> I appreciate if any of you can send me pointers to the algorithm used by >> google. >> > > Sorry, I don't have any. I would look through their docs. Or, just use > Lucene/Solr and save yourself a bunch of money... ;-) > > >> >> Regards >> Vasu >> > > -------------------------- > Grant Ingersoll > http://www.lucidimagination.com/ > > Search the Lucene ecosystem (Lucene/Solr/Nutch/Mahout/Tika/Droids) using > Solr/Lucene: > http://www.lucidimagination.com/search > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > >
