Hi, I found my answer in this: http://lucene.apache.org/core/4_0_0-BETA/changes/Changes.html#4.0.0-alpha.new_features
change no. 34 LUCENE-2959 <http://issues.apache.org/jira/browse/LUCENE-2959>: Added a variety of different relevance ranking systems to Lucene. "All models default to the same index-time norm encoding as DefaultSimilarity, so you can easily try these out/switch back and forth/run experiments and comparisons without reindexing. Note: most of the models do rely upon index statistics that are new in Lucene 4.0, so for existing 3.x indexes its a good idea to upgrade your index to the new format with IndexUpgrader first." So basically in my case I do not need to set it in the .alg file. On Wed, Sep 5, 2012 at 7:58 AM, Sachin Kulkarni <kulk...@hawk.iit.edu>wrote: > Hi, > > For Lucene core 4.0. BETA, under the search.similarities help page it says > the following > "To change > Similarity<http://lucene.apache.org/core/4_0_0-BETA/core/org/apache/lucene/search/similarities/Similarity.html>, > one must do so for both indexing and searching, and the changes must happen > before either of these actions take place." > How do I set a different similarity measure while indexing using the alg > file? > I know we can use the IndexWriterConfig's setSimilarity using code but am > not sure what to use in the config file. > > I want to use a different similarity measure for search. > > > Thank you. > > Regards, > Sachin > >
