Handling syntax separately from semantics and pragmatics is hacky
and non-AGI-ish ... but, makes it easier to get NLP systems working at a
primitive level in a non-embodied context

Operator grammar mixes syntax and semantics which is philosophically
correct, but makes things harder

Link grammar is purely syntactic, which is philosophically wrong, but makes
things implementationally easier

I have worked a lot with the link parser and it is pretty good for a
rule-based statistical parser.  But this kind of NLP framework has intrinsic
limitations.

The way we intend to ultimately do NLP in Novamente has more in common with
operator grammar ... but we have used the link parser for commercial NLP
projects, because it (sorta) works...

-- Ben G


On 5/21/07, Chuck Esterbrook <[EMAIL PROTECTED]> wrote:

Any opinions on Operator Grammar vs. Link Grammar?

http://en.wikipedia.org/wiki/Operator_Grammar

http://en.wikipedia.org/wiki/Link_grammar

Link Grammar seems to have spawned practical software, but Operator
Grammar has some compelling ideas including coherent selection,
information content and more. Maybe these ideas are too hard or too
ill-defined to implement?

Or, in other words, why does Link Grammar win the GoogleFight?

http://www.googlefight.com/index.php?lang=en_GB&word1=%22link+grammar%22&word2=%22operator+grammar%22
(http://tinyurl.com/yvu9xr)

-Chuck

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