Title
Dictionary refinements based on phonetic consensus and non-uniform pronunciation reduction
Abstract
In this paper we present a procedure to refine the recognition dic- tionary based on a composite approach to prune the unneeded pro- nunciations. First, pruning is applied in a non-uniform manner according to the characteristics of each word. Even though this straightforward operation may produce high-quality dictionaries, it makes the refined dictionary heavily dependent on the data used in this process. Forthe words not observed in the data, we propose, in second place, to use multiple sequence alignment techniques in order to find phonetic consensus among the pronunciation variants and select the worthy pronunciations that will represent the unob- served words. Experimental results show that our dictionary refin- ing method helps to improve the recognition performance in two relevant aspects: it increases the recognition accuracy by reducing the cross-word confusibility and it improves the recognition speed by reducing the complexity of the search space.
Year
Venue
Keywords
2004
INTERSPEECH
multiple sequence alignment,search space
Field
DocType
Citations 
Pronunciation,Pattern recognition,Computer science,Speech recognition,Artificial intelligence,Natural language processing
Conference
2
PageRank 
References 
Authors
0.40
4
4
Name
Order
Citations
PageRank
Gustavo Hernández Ábrego182.75
Lex Olorenshaw231.86
Raquel Tato3518.32
Thomas Schaaf436444.96