Second European Conference on Speech Communication and Technology

Genova, Italy
September 24-26, 1991


An Efficient Implementation of the N-Best Algorithm for Lexical Access

Peter Nowell, Henry S. Thompson

Department of Artificial Intelligence, University of Edinburgh, UK

This paper describes an efficient implementation of the N-Best algorithm for lexical access. An extension has been made to the original algorithm which reduces the search space by 80% whilst retaining over 99% of the top ten optimal paths produced by the standard N-Best algorithm. We have also found that pruning can reduce the search space further by a further 50% without a significant loss of optimal paths. Keywords: Lexical Access, Dynamic Programming, N-Best Algorithm, Path Re-generation, Beam-Width Pruning

Full Paper

Bibliographic reference.  Nowell, Peter / Thompson, Henry S. (1991): "An efficient implementation of the n-best algorithm for lexical access", In EUROSPEECH-1991, 667-670.