Speech recognition technology is prone to mistakes, but this is

not the only source of errors that cause speech recognition

systems to fail; sometimes the user simply does not utter the

command correctly. Usually, user mistakes are not considered

when a system is designed and evaluated. This creates a gap

between the claimed accuracy of the system and the actual

accuracy perceived by the users. We address this issue

quantitatively in our in-car infotainment media search task and

propose expanding the capability of voice command to

accommodate user mistakes while retaining a high percentage

of the performance for queries with correct syntax. As a

result, failures caused by user mistakes were reduced by an

absolute 70% at the cost of a drop in accuracy of only 0.28%.

Publisher: International Speech Communication Association
© 2007 ISCA. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the ISCA and/or the author.

Details