Important Points
SP7.5 New estimator for word probability. Estimating posteriors from lattices. Convert into word probabilities. Experiment: NAB, h194 Reduced Lattice-WER by 20%
SP7.7 Goal: Wordspotting, OOV detect for IR Coarse-to-Fine structure. Fast phone-based then word-based. Combined with IR using word or n-phone. Experiment: TREC6-test (10 hours ~100kw) Able to detect 50% OOV with 10 false alarms.