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From Andrzej Bialecki ...@getopt.org>
Subject Re: [jira] Updated: (LUCENE-834) Payload Queries
Date Sat, 17 Mar 2007 22:02:25 GMT
Grant Ingersoll (JIRA) wrote:
>      [ https://issues.apache.org/jira/browse/LUCENE-834?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
>
> Grant Ingersoll updated LUCENE-834:
> -----------------------------------
>
>     Attachment: boosting.term.query.patch
>
> First draft at a BoostingTermQuery, which is based on the SpanTermQuery and can be used
for boosting the score of a term based on what is in the payload (for things like weighting
terms higher according to their font size or part of speech).  
>
> A couple of classes that were previously package level are now public and have been marked
as Public and for derivational purposes only.
>
>
> See the CHANGES.xml for some more details.
>
> I believe all tests still pass.
>
>   

Grant,

This is great stuff! I know quite a few projects that will love this - 
specifically to boost terms differently based on a POS tag.

We had a discussion recently in Nutch about changing the way typical 
Nutch queries are translated into Lucene queries, and performance 
implications there. If you're looking for a challenge ;) could you 
perhaps take a look at this discussion and see if you could contribute 
something? ;)

http://www.nabble.com/Performance-optimization-for-Nutch-index---query-tf3276316.html

Thanks in advance!

-- 
Best regards,
Andrzej Bialecki     <><
___. ___ ___ ___ _ _   __________________________________
[__ || __|__/|__||\/|  Information Retrieval, Semantic Web
___|||__||  \|  ||  |  Embedded Unix, System Integration
http://www.sigram.com  Contact: info at sigram dot com




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