Re: Custom scoring for searhing geographic objects

2010-12-19 Thread Alexey Serba
Hi Pavel, I had the similar problem several years ago - I had to find geographical locations in textual descriptions, geocode these objects to lat/long during indexing process and allow users to filter/sort search results to specific geographical areas. The important issue was that there were seve

Re: Custom scoring for searhing geographic objects

2010-12-15 Thread Grant Ingersoll
Have a look at http://lucene.apache.org/java/3_0_2/scoring.html on how Lucene's scoring works. You can override the Similarity class in Solr as well via the schema.xml file. On Dec 15, 2010, at 10:28 AM, Pavel Minchenkov wrote: > Hi, > Please give me advise how to create custom scoring. I ne

Re: Custom scoring for searhing geographic objects

2010-12-15 Thread Doron Cohen
Also, when taking the Similarity suggestion below note two things in Lucene's default behavior that you seem to wish to avoid: The first is IDF - but only for multi-term queries - otherwise ignore this comment. For multi term queries to only consider term frequency and doc length, you may want to

Re: Custom scoring for searhing geographic objects

2010-12-15 Thread Ian Lea
Sounds to me that lucene should do a pretty good job without any extra work on your part. See javadocs for org.apache.lucene.search.Similarity for details on how it works. You can change things by providing your own implementation. There is also the org.apache.lucene.search.function package but