Lexicalized Tree-Adjoining Grammars (LTAG) - ad-teaching.infor...
Lexicalized Tree-Adjoining Grammars (LTAG) - ad-teaching.infor...
Lexicalized Tree-Adjoining Grammars (LTAG) - ad-teaching.infor...
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<strong>Tree</strong>-Substitution <strong>Grammars</strong><br />
Example (Derivation with a TSG)<br />
Initial trees:<br />
S<br />
NP<br />
D<br />
N<br />
N<br />
NP↓<br />
VP↓<br />
D↓<br />
N↓<br />
the<br />
penguin<br />
elephant<br />
VP<br />
VP<br />
V<br />
V<br />
often<br />
VP↓<br />
V↓<br />
NP↓<br />
chases<br />
helps<br />
A derived tree:<br />
S<br />
NP<br />
VP<br />
D<br />
N<br />
often<br />
VP<br />
the<br />
penguin<br />
V<br />
NP<br />
chases<br />
D<br />
N<br />
the<br />
elephant<br />
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