First International Conference on Spoken Language Processing (ICSLP 90)

Kobe, Japan
November 18-22, 1990

Recent Progress on the MIT VOYAGER Spoken Language System

Victor W. Zue, James R. Glass, Dave Goddeau, David Goodine, Hong C. Leung, Michael K. McCandless, Michael S. Phillips, Joseph Polifroni, Stephanie Seneff, Dave Whitney

Spoken Language Systems Group, Laboratory for Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA

The MIT voyager speech understanding system, described in some detail in [1], is an urban exploration system that interacts with the user through spoken dialogue and graphics. This paper describes some recent changes made in the Voyager system, and attempts to assess the effectiveness of these developments. Two key improvements are a tighter integration of the speech and natural language components and a pipelined hardware implementation leading to a speed-up in processing time from approximately 12 times real time to approximately 3 times real time. We have also made a number of incremental improvements in the word-pair grammar, pronunciation networks, and the back-end capabilities. Finally, we demonstrate substantial performance improvements, mainly as a consequence of tighter integration.

Full Paper

Bibliographic reference.  Zue, Victor W. / Glass, James R. / Goddeau, Dave / Goodine, David / Leung, Hong C. / McCandless, Michael K. / Phillips, Michael S. / Polifroni, Joseph / Seneff, Stephanie / Whitney, Dave (1990): "Recent progress on the MIT VOYAGER spoken language system", In ICSLP-1990, 1317-1320.