Lucene: define custom similarity measures for specific fields

Mon, 28 Feb 2011 09:00:06 -0800 

My indexed documents contains some numerical fields. When I perform a query
using numerical values in such fields I need to use my own similarity
formula.

How can I integrate a similarity measure for specific numerical fields in my
query and documents ?

e.g.

    <doc>
    <title>...</title>
    <latitude>32484329</latitude>
    </doc>
    
    <query>
    <title>...</title>
    <latitude>23552456</latitude>
    </query>

thanks

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