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Guassian pdfs Clustering Using a Divergence Measure-based Neural Network  

박동철 (명지대학교 정보공학과)
권오현 (명지대학교 정보공학과)
Abstract
An efficient algorithm for clustering of GPDFs(Gaussian Probability Density Functions) in a speech recognition model is proposed in this paper. The proposed algorithm is based on CNN with the divergence as its distance measure and is applied to a speech recognition. The algorithm is compared with conventional Dk-means(Divergence-based k-means) algorithm in CDHMM(Continuous Density Hidden Markov Model). The results show that it can reduce about 31.3% of GPDFs over Dk-means algorithm without suffering any recognition performance. When compared with the case that no clustering is employed and full GPDFs are used, the proposed algorithm can save about 61.8% of GPDFs while preserving the recognition performance.
Keywords
CNN; Dk-means; GPDF; memory size;
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