FEBRUARY '91 BENCHMARK TESTS

TEST MATERIAL: The February '91 Benchmark Tests include previously
unreleased material drawn from the Speaker Dependent and Speaker
Independent Evaluation Test sets.  One set of 300 sentence utterances
was designated for the Speaker Dependent tests (25 sentence utterances
from each of the 12 speakers), and another set of 300 sentence
utterances was designated for the Speaker Independent tests (30
sentence utterances from each of a new set of 10 speakers).

SPEAKER INDEPENDENT SYSTEM TRAINING: System training conditions are
to be the same as for the February '89 tests (i.e., use of either
the 72-speaker "standard" or 109-speaker "augmented" training
sets). 

LIVE TALKERS: No "live talker tests" were included in these tests. 

"HOMOPHONES CORRECT" OPTION IN SCORING: As in the June '88 and
February '89 tests, substitution errors involving homophones were
scored as "correct" for the case of no imposed grammar. 

STANDARD WORD-PAIR GRAMMAR: The "word-pair" grammar, used in the
June '88 and February '89 tests, was again used as a "standard
grammar".