Title
Building an ensemble of CD-DNN-HMM acoustic model using random forests of phonetic decision trees
Abstract
We propose an RF-PDT+CD-DNN approach to generate an ensemble of context-dependent pre-trained deep neural networks (CD-DNNs) using random forests of phonetic decision trees (RF-PDTs) and constructing a CD-DNN-HMM-based ensemble acoustic model (EAM). We present evaluation results on the TIMIT dataset and a telemedicine automatic captioning dataset and demonstrate that the proposed RF-PDT+CD-DNN based EAM significantly outperforms the CD-DNN based single acoustic model (SAM) in phone and word recognition accuracies.
Year
DOI
Venue
2014
10.1109/ISCSLP.2014.6936680
ISCSLP
Keywords
Field
DocType
deep neural network,random forest,telemedicine automatic captioning dataset,phone recognition accuracies,sam,speech recognition,telemedicine,timit dataset,eam,random forests,word recognition accuracies,discriminative pre-training,phonetic decision trees,context-dependent pretrained deep neural networks,cd-dnn-hmm acoustic model ensemble,ensemble acoustic model,single acoustic model,decision trees,neural nets,rf-pdt+cd-dnn,random forests of phonetic decision trees,phonetic decision tree
TIMIT,Decision tree,Closed captioning,Pattern recognition,Computer science,Word recognition,Speech recognition,Phone,Artificial intelligence,Random forest,Hidden Markov model,Acoustic model
Conference
Citations 
PageRank 
References 
4
0.40
11
Authors
3
Name
Order
Citations
PageRank
Tuo Zhao122240.58
Yunxin Zhao2807121.74
Xin Chen31169.64