On how to write rules in Constraint Grammar (CG-3) - VISL
On how to write rules in Constraint Grammar (CG-3) - VISL
On how to write rules in Constraint Grammar (CG-3) - VISL
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<strong>CG</strong> <strong>in</strong>put<br />
➢ (2) F<strong>in</strong>ite State Transducer (e.g. Kimmo Koskenniemi,<br />
Xerox, ...)<br />
<br />
<br />
<br />
<br />
<br />
cha<strong>in</strong>s cont<strong>in</strong>uation lexica (for roots, prefixes, suffixes, <strong>in</strong>flexion end<strong>in</strong>gs)<br />
comb<strong>in</strong>a<strong>to</strong>rial <strong>rules</strong> (before/after lexicon type conditions)<br />
possibly edge letter <strong>rules</strong> or two-level <strong>rules</strong> for orthographical variation<br />
(gem<strong>in</strong>ation, umlaut etc)<br />
advantages:<br />
●<br />
●<br />
disadvantages:<br />
●<br />
●<br />
very fast<br />
can be used for both analysis and generation<br />
needs a (quite specialized) l<strong>in</strong>guist, and lexical<br />
resources (time/labour/money-expensive)<br />
no natural way of do<strong>in</strong>g heuristics
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