Paper: Rapid Prototyping of Robust Language Understanding Modules for Spoken Dialogue Systems

ACL ID I08-1028
Title Rapid Prototyping of Robust Language Understanding Modules for Spoken Dialogue Systems
Venue International Joint Conference on Natural Language Processing
Session Main Conference
Year 2008
Authors

Language understanding (LU) modules for spoken dialogue systems in the early phases of their development need to be (i) easy to construct and (ii) robust against vari- ous expressions. Conventional methods of LU are not suitable for new domains, be- cause they take a great deal of effort to make rules or transcribe and annotate a suf- cient corpus for training. In our method, the weightings of the Weighted Finite State Transducer (WFST) are designed on two levels and simpler than those for conven- tional WFST-based methods. Therefore, our method needs much fewer training data, which enables rapid prototyping of LU mod- ules. We evaluated our method in two dif- ferent domains. The results revealed that our method outperformed baseline methods with less than one hundred utterances as traini...