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From Koji Sekiguchi <>
Subject Re: Highlighting large documents (Lucene 3.0.0)
Date Mon, 01 Mar 2010 14:42:05 GMT
-Arne- wrote:
> Hi,
> I'm using Lucene 3.0.0 and have large documents to search (logfiles
> 0,5-20MB). For better search results the query tokens are truncated left and
> right. A search for "user" is made to "*user*". The performance of searching
> even complex queries with more than one searchterm is quite good. But
> highlighting the search results took quite a while. I have tried the default
> Highlighter, which doesn't seemed to be fast enough and the
> FastVectorHighlighter, which seems to be fast enought, but didn't return
> fragments for truncated queries, for not truncated query I got fragments.
> Could anybode please tell me what is the best way to highlight large
> documents and, if the FastVectorHighlighter is the solution for faster
> highlighting, how to highlight truncated search queries.
> Thanks in advance,
> -Arne-
I'm not sure this is the best way, but can you index and search
the highlighting field with NGram? Since FVH supports
NGram field to highlight, you can use "user" just as "user"
(rather than "*user*") to highlight the NGram field.



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