I don't think you can do this continuously, but this might be possible to do by setting up "regions" of how far away the person is. I'm not using real lats and longs here, but say you want to search within 5 points of lat=5; long=6. You could set up your search as:
+((lat:[0 TO 10] and long:[1 TO 11]) (lat:[1 TO 9] and long:[2 TO 10]) (lat:[2 TO 8] and long:[3 TO 9]) ... (lat:5 and long:6)) Hairy yes, but I *believe* looking at how scoring works that (assuming all other terms had boost factors of 0), that those docs which were closer would match more terms and thus be scored higher. Not positive but it's something to play with. Gabe --- Martin May <[EMAIL PROTECTED]> wrote: > > Hi everybody, > > I have some questions concerning using Lucene for > Geo-searching. I have > a bunch of documents (> 100,000) in the index that > all have a latitude > and longitude associated with them. > > I wanted to be able to search within a certain > radius of a point of > origin, which I accomplished by applying some > filters on the search that > restrict what values lat/long can take. > > So far so good. What I would like to be able to do > now is factor in the > distance from the point of origin in the scoring, > i.e. give documents > that are closer to the point of origin a boost. > > Simply sorting by distance won't cut it, because > there are other > relevance factors affecting the ranking. Is there > any good (easy & > efficient) way to do this? > > Thanks, > > Martin > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: > [EMAIL PROTECTED] > For additional commands, e-mail: > [EMAIL PROTECTED] > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
