Title
Enhanced tree clustering with single pronunciation dictionary for conversational speech recognition
Abstract
Modeling pronunciation variation is key for recogniz- ing conversational speech. Rather than being limited to dictionary modeling, we argue that triphone clustering is an integral part of pronunciation modeling. We propose a new approach called enhanced tree clustering .T his approach, in contrast to traditional decision tree based state tying, allows parameter sharing across phonemes. We show that accurate pronunciation modeling can be achieved through efficient parameter sharing in the acous- tic model. Combined with a single pronunciation dic- tionary, a 1.8% absolute word error rate improvement is achieved on Switchboard, a large vocabulary conversa- tional speech recognition task.
Year
Venue
Keywords
2003
INTERSPEECH
speech recognition,decision tree,word error rate
Field
DocType
Citations 
Triphone,Pronunciation,Decision tree,Pattern recognition,Computer science,Word error rate,Speech recognition,Artificial intelligence,Natural language processing,Cluster analysis,Vocabulary,Acoustic model
Conference
10
PageRank 
References 
Authors
1.25
5
2
Name
Order
Citations
PageRank
Hua Yu1202.74
T. Schultz22423252.72