FAQ
Hi,
Please clarify my doubts.
What's the use of storing proximity data internally while indexing? Is
it only for score calculation or any other additional purpose?
How lucene handles phrase query? Whether it's depend on proximity data
of phrase terms or any other?

Thanks & Regards
RSK

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  • Karl wettin at Mar 27, 2007 at 7:23 am

    27 mar 2007 kl. 08.49 skrev SK R:

    Hi,
    Please clarify my doubts.
    What's the use of storing proximity data internally while
    indexing? Is
    it only for score calculation or any other additional purpose?
    How lucene handles phrase query? Whether it's depend on
    proximity data
    of phrase terms or any other?
    Do you speak of term offsets or term positions?

    --
    karl

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  • SK R at Mar 27, 2007 at 7:35 am
    Hi,
    I'm speaking about term positions.
    In Lucene File Format, the .prx file contains the lists of positions
    that each term occurs at within documents.
    I asked what's the purpose of this .prx file?
    Also how phrasequery handled?

    Thanks & Regards
    RSK
    On 3/27/07, karl wettin wrote:


    27 mar 2007 kl. 08.49 skrev SK R:
    Hi,
    Please clarify my doubts.
    What's the use of storing proximity data internally while
    indexing? Is
    it only for score calculation or any other additional purpose?
    How lucene handles phrase query? Whether it's depend on
    proximity data
    of phrase terms or any other?
    Do you speak of term offsets or term positions?

    --
    karl

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  • Karl wettin at Mar 27, 2007 at 7:46 am

    27 mar 2007 kl. 09.33 skrev SK R:

    Hi,
    I'm speaking about term positions.
    In Lucene File Format, the .prx file contains the lists of
    positions
    that each term occurs at within documents.
    I asked what's the purpose of this .prx file?
    It is generally used for phrase/span queries.
    Also how phrasequery handled?
    If the matching terms are within slop distance, the query is a match.
    Or what do you ask here?

    Slop and distance can affect the score. For exact meachanism see
    PhraseScorerer.java, SloppyPhraseScorer.java or await a better answer
    from someone else :)

    --
    karl

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postedMar 27, '07 at 6:50a
activeMar 27, '07 at 7:46a
posts4
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Karl wettin: 2 posts SK R: 2 posts

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