Accession Number:

ADA458663

Title:

Evaluating Spoken Language Interaction

Descriptive Note:

Conference paper

Corporate Author:

CARNEGIE-MELLON UNIV PITTSBURGH PA SCHOOL OF COMPUTER SCIENCE

Report Date:

1989-01-01

Pagination or Media Count:

11.0

Abstract:

To study the spoken language interface in the context of a complex problem-solving task, a group of users were asked to perform a spreadsheet task, alternating voice and keyboard input. A total of 40 tasks were performed by each participant, the first thirty in a group over several days, the remaining ones a month later. The voice spreadsheet program used in this study was extensively instrumented to provide detailed information about the components of the interaction. These data, as well as analysis of the participantss utterances and recognizer output, provide a fairly detailed picture of spoken language interaction. Although task completion by voice took longer than by keyboard, analysis shows that users would be able to per- form the spreadsheet task faster by voice, if two key criteria could be met recognition occurs in real-time, and the error rate is sufficiently low. This initial experience with a spoken language system also allows us to identify several metrics, beyond those traditionally associated with speech recognition, that can be used to characterize system performance.

Subject Categories:

  • Linguistics
  • Cybernetics
  • Voice Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE