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From "Wu, Stephen T., Ph.D." <Wu.Step...@mayo.edu>
Subject Re: What is "flexible indexing" in Lucene 4.0 if it's not the ability to make new postings codecs?
Date Wed, 12 Dec 2012 20:02:41 GMT
>> Is there any (preliminary) code checked in somewhere that I can look at,
>> that would help me understand the practical issues that would need to be
>> addressed?
> 
> Maybe we can make this more concrete: what new attribute are you
> needing to record in the postings and access at search time?

For example: 
 - part of speech of a token.
 - syntactic parse subtree (over a span).
 - semantically normalized phrase (to canonical text or ontological code).
 - semantic group (of a span).
 - coreference link.

stephen


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