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From "Digy (JIRA)" <>
Subject [jira] Commented: (LUCENENET-350) Performance enhancement in FastVectorHighlighter
Date Tue, 16 Mar 2010 18:54:27 GMT


Digy commented on LUCENENET-350:

Hi Bianco,
First of all, could you add a apache licence to the file VectorHighlightMapper.cs?

Your work is very good and pass all tests, but it is not like just a simple bug fix and there
is a divergence from FVH java. This makes life hard while making new versions' ports.

All Lucene.Net community!
Any idea about what  we should do?


> Performance enhancement in FastVectorHighlighter
> ------------------------------------------------
>                 Key: LUCENENET-350
>                 URL:
>             Project: Lucene.Net
>          Issue Type: Improvement
>            Reporter: Bianco Veigel
>         Attachments: FieldTermStack.patch, VectorHighlightMapper.cs
> I've had some performace issues with highlighting large documents (>25MB plain text,
> 11000 Terms per Field)
> This can be usual if your indexing i.e. log or trace files.
> Most of the time is spent loading the field value and stored TermVectors and Offets and
itering over this List.
> I've build a TermVectorMapper which filters this List, by the searched terms, so that
the time is reduces by approx. 30%

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