Title :
Using expanded question sets in decision tree clustering for acoustic modelling
Author :
Sjölander, Kåre ; Högberg, Jesper
Author_Institution :
Dept. of Speech, Music & Hearing, R. Inst. of Technol., Stockholm, Sweden
Abstract :
Phone-like units (PLUs) for automatic speech recognition are derived using a decision tree algorithm. In our approach we use information such as target phone label, immediate context, lexical stress level and function word affiliation in the decision tree analysis. The resulting PLUs are shown to improve phone and word recognition
Keywords :
decision theory; speech processing; speech recognition; trees (mathematics); word processing; PLUs; acoustic modelling; automatic speech recognition; decision tree algorithm; decision tree analysis; decision tree clustering; expanded question sets; function word affiliation; immediate context; lexical stress level; phone like units; target phone label; word recognition; Auditory system; Automatic speech recognition; Clustering algorithms; Decision trees; Information analysis; Music; Speech analysis; Speech recognition; Stress; Vocabulary;
Conference_Titel :
Automatic Speech Recognition and Understanding, 1997. Proceedings., 1997 IEEE Workshop on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-7803-3698-4
DOI :
10.1109/ASRU.1997.659003
