Algorithms for Speech Recognition and Language Processing

Details Algorithms for Speech Recognition and Language Processing Algorithms for Speech Recognition and Language Processing

1996-08-27

arxiv.org/abs/cmp-lg/9608018v2

Computer Science

Computation and Language

Postscript file tar-compressed and uuencoded, 189 pages

Scientific paper

Speech processing requires very efficient methods and algorithms. Finite-state transducers have been shown recently both to constitute a very useful abstract model and to lead to highly efficient time and space algorithms in this field. We present these methods and algorithms and illustrate them in the case of speech recognition. In addition to classical techniques, we describe many new algorithms such as minimization, global and local on-the-fly determinization of weighted automata, and efficient composition of transducers. These methods are currently used in large vocabulary speech recognition systems. We then show how the same formalism and algorithms can be used in text-to-speech applications and related areas of language processing such as morphology, syntax, and local grammars, in a very efficient way. The tutorial is self-contained and requires no specific computational or linguistic knowledge other than classical results.

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