Decoding Algorithm Evaluation

male, LM: 20K 75-month cutoff-1-1

Accurate Decoding with triphone model

GD triphone 2000x16 final (1st pass)
(1998 version) 92.0 (78.9)
enhanced XW-CD: 1st pass 93.0 (85.2)
enhanced XW-CD: 1st&2nd pass 94.3 (85.0)

Efficient Decoding with PTM model

accuracy Gaussian
GD PTM 129x64 computation
No Gaussian pruning 92.8 100
safe pruning 92.4 52
heuristic pruning 90.7 36
beam pruning 91.2 21

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Next: Specification of 20K Systems Up: Performance Evaluation Previous: Language Model Evaluation
Tatsuya Kawahara