ESCA Workshop on Spoken Dialogue Systems

Vigsų, Denmark
May 30 - June 2, 1995

A Spontaneous-Speech Understanding System for Database Query Applications

Roberto Pieraccini, Esther Levin

Speech Research Department, AT&T Bell Laboratories, Murray Hill, NJ, USA

In 1991 we proposed a new approach to the problem of speech understanding. The approach was called CHRONUS (Conceptual Hidden Representation Of Natural Unconstrained Speech) and was based on a stochastic representation of meaning and language. Only at the end of 1994 could we prove that a speech understanding system based on CHRONUS can be developed by a small team in a short time and still outperform traditional systems that required years of tuning. In this paper we will explain how CHRONUS allowed us to achieve two important goals: to score as the best natural language system at the 1994 ARPA ATIS evaluation and to start a new general framework for approaching the problem of language understanding.

Full Paper

Bibliographic reference.  Pieraccini, Roberto / Levin, Esther (1995): "A spontaneous-speech understanding system for database query applications", In SDS-1995, 85-88.