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2013 Jun 17
2
Backend for Lucene format indexes-How to get doclength
...out doclength, such as BM25Weight or TradWeight
without doclength, or tfidfWeight.
If ranking results will be not good without doclength?
2. Stores doclength in .prx payload when doing Lucene indexing.
https://lucene.apache.org/core/3_6_0/api/all/org/apache/lucene/index/Payload.html
http://searchhub.org/2009/08/05/getting-started-with-payloads/
But this method has obvious drawback, it's not for general Lucene index
data, if doclength is not stored, this method
doesn't works
>
> Any suggestions?
Regards
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2013 Jun 16
3
Backend for Lucene format indexes-How to get doclength
Hi, all:
I have wrote a demo patch for Backend for Lucene format indexes, Lucene
version is 3.6.2.
http://lucene.apache.org/core/3_6_2/fileformats.html
Now, this demo patch just support the basic features in Lucene. Compound
File(.cfs/.cfe)?term vector(.tvx/.tvd/.tvf)
delete document(.del) are not supported, skip list in .fdx is not supported
too
example/quest.cc is used to test this demo.