search for: 3_6_0

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2013 Jun 17
2
Backend for Lucene format indexes-How to get doclength
...en Xapian and Lucene Some ideas: 1. Using rank algorithm without 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 --...
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.