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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Outline of the Algorithm<br />
Initialize the chart C with items of the form<br />
[α, 0, la, 0, −, −, 0, ⊥], where α ∈ I , root label S.<br />
Then use 4 types of operations to <strong>ad</strong>d new items to C:<br />
Scan, Predict, Complete, Adjoin<br />
Operations stated as inference rules:<br />
item 1 · · · item m<br />
item ∗<br />
conditions<br />
Add item ∗ to C if item 1 ,· · ·, item m ∈ C and conditions are met.<br />
Accept input string c 1 · · · c n if C contains at least one item<br />
[α, 0, ra, 0, −, −, n, ⊥], where α ∈ I , root label S.<br />
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