P.S. Gopalakrishnan, D. Kanevsky, et al.
ICASSP 1989
In this paper we describe a tree search strategy, called the Envelope Search, which is a time-asynchronous search scheme that combines aspects of the A* heuristic search algorithm with those of the time-synchronous Viterbi search algorithm. This search technique is used in the large-vocabulary continuous speech recognition system developed at the IBM Research Center.
P.S. Gopalakrishnan, D. Kanevsky, et al.
ICASSP 1989
Lalit R Bahl, Steven V. De Gennaro, et al.
IEEE Transactions on Speech and Audio Processing
L.R. Bahl, S. De Gennaro, et al.
ICSLP 1998
F. Jelinek, R.L. Mercer, et al.
ICASSP 1990