Tree Organized Lexicons and Beam Search: Implementational Issues
Carlos Alberto Ynoguti, Fábio Violaro · Anais do 2002 International Telecommunications Symposium · 2002
The aim of this work is to enlighten some implementational issues on two widely used techniques for reduction in search space for large vocabulary speech recognition systems: tree organized lexicons and Viterbi Beam Search.We show how we can exploit some symmetries of the search space to use these techniques together and achieve a great reduction in computational load and, consequently, in recognition times.Tests showed that recognition times fall down by a factor of 5 using this procedure.1