Lexicalized Tree Adjoining Grammar
(Redirected from Lexicalized TAG)
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A Lexicalized Tree Adjoining Grammar is a Tree Adjoining Grammar where each Elementary Tree has at least one Terminal Symbol as a Leaf Node.
- AKA: LTAG.
- Counter-Example(s):
- See: Lexicalized .
References
1997
- (Joshi & Schabes, 1997)
- “explain how every CFG can be strongly lexicalized by TAG
- “show that Tree-Adjoining Languages are closed under lexicalization: every TAL has a lexicalized TAG grammar
- Lexicalization has some useful effects:
- finite ambiguity: corresponds to our intuition about NL ambiguities,
- statistical dependencies between words can be captured which can improve parsing accuracy