Second International Conference on Spoken Language Processing (ICSLP'92)

Banff, Alberta, Canada
October 13-16, 1992

User Behaviors Affecting Speech Recognition

Elizabeth Wade, Elizabeth Shriberg, Patti Price

SRI International, Menlo Park, CA, USA

We attempt to explain a decrease in recognition word error rate observed when users interacted over time with a spoken language system. We found no change in the language used (as measured by sentence perplexity), and only a small decrease in the number of out-of-vocabulary words. However, a behavior adversely affecting recognition, hyperarticulation, decreased over time. In addition, the acoustic match of hyper-articulated utterances to the system models also improved over time. We conclude that improvement in recognition was due to changes in speech rather than in language.

Full Paper

Bibliographic reference.  Wade, Elizabeth / Shriberg, Elizabeth / Price, Patti (1992): "User behaviors affecting speech recognition", In ICSLP-1992, 995-998.