History of DARPA speech recognition benchmark

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1k

ATIS

?

?

?

100%

10%

1%

WORD ERROR RATE

1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003

Read

Speech

Spontaneous

Speech

Conversational

Speech

Broadcast

Speech

Varied

Microphone

Noisy

20k

5k

foreign

Courtesy NIST 1999 DARPA

HUB-4 Report, Pallett et al.

foreign

Resource

Management

WSJ

Switchboard

NAB

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