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MyASPN >> Mail Archive >> xml-dev
xml-dev
[xml-dev] Re: ID/IDREF makes XML generation NP-hard
by MURATA Makoto other posts by this author
Apr 3 2003 1:52PM messages near this date
Re: [xml-dev] Re: ID/IDREF makes XML generation NP-hard | [xml-dev] RELAX NG and datatypes make XML generation NP-hard
On 28 Mar 2003 21:59:11 +0000
ht@[...].uk (Henry S. Thompson) wrote:

>  Somewhat surprisingly, it turns out that answering the question, for an
>  arbitrary XML DTD, "Are there any valid instances of the document type
>  defined by this DTD?", is an NP-hard problem.

A similar result was shown by:

On XML Integrity Constraints in the Presence of DTDs
Journal of the ACM (JACM), Volume 49 , Issue 3, pp 368 - 406, May 2002.
Wenfei Fan and Leonid Libkin

http://www.bell-labs.com/user/wenfei/papers/jacm.pdf

-- 
MURATA Makoto <murata@[...].jp> 



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Thread:
Henry S. Thompson
Rick Jelliffe
Christian Nentwich
Murali Mani
Rick Jelliffe
Murali Mani
MURATA Makoto
Robert C. Lyons
Tim Bray
Murali Mani

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