This paper introduces at robust interactive method for speech understatnding. The generatlized LR patrsing is enhanced ill this approach. Patrsing proceeds fl'om left to right correcting minor errors. When at very noisy portion is detected, the patrser skips that portion using a .fake nonterminal symbol. The unidentified portion is resolved by re-utterance of thatt portion which is parsed very ...

It is generally recognized that the common nonterminal labels for syntactic constituents (NP, VP, etc.) do not exhaust the syntactic and semantic information one would like about parts of a syntactic tree. For example, the Penn Treebank gives each constituent zero or more ‘function tags’ indicating semantic roles and other related information not easily encapsulated in the simple constituent la...

We experiment with adding semantic role information to a string-to-tree machine translation system based on the rule extraction procedure of Galley et al. (2004). We compare methods based on augmenting the set of nonterminals by adding semantic role labels, and altering the rule extraction process to produce a separate set of rules for each predicate that encompass its entire predicate-argument...