Lexicalized Tree-Adjoining Grammars (LTAG) - ad-teaching.infor...
Lexicalized Tree-Adjoining Grammars (LTAG) - ad-teaching.infor...
Lexicalized Tree-Adjoining Grammars (LTAG) - ad-teaching.infor...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Lexicalization<br />
Example (strong lexicalization of a CFG with a TAG)<br />
Consider again the following CFG:<br />
It can be easily lexicalized with a<br />
TAG by using <strong>ad</strong>junction:<br />
S → SS<br />
S → a<br />
S<br />
a<br />
S ∗<br />
S<br />
S<br />
a<br />
By successive <strong>ad</strong>junction we get the following derived trees:<br />
S S S<br />
S<br />
a<br />
S<br />
S<br />
S<br />
S<br />
S<br />
S<br />
a<br />
a<br />
a<br />
S<br />
S<br />
S<br />
S<br />
S<br />
S<br />
a<br />
a<br />
a<br />
a<br />
a<br />
a<br />
25 / 52
Change language