NEURAL NETWORK ADAPTIVE WAVELETS FOR SIGNAL REPRESENTATION AND CLASSIFICATION

被引:226
作者
SZU, HH [1 ]
TELFER, B [1 ]
KADAMBE, S [1 ]
机构
[1] ALFRED I DUPONT INST,APPL SCI & ENGN LABS,WILMINGTON,DE 19899
关键词
WAVELET TRANSFORMS; CLASSIFICATION; FEATURE SELECTION; NEURAL NETWORKS; PHONEME RECOGNITION; SIGNAL APPROXIMATION; SIGNAL REPRESENTATION; SPEAKER RECOGNITION;
D O I
10.1117/12.59918
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Methods are presented for adaptively generating wavelet templates for signal representation and classification using neural networks. Different network structures and energy functions are necessary and are given for representation and classification. The idea is introduced of a "super-wavelet," a linear combination of wavelets that itself is treated as a wavelet. The super-wavelet allows the shape of the wavelet to adapt to a particular problem, which goes beyond adapting parameters of a fixed-shape wavelet. Simulations are given for 1-D signals, with the concepts extendable to imagery. Ideas are discussed for applying the concepts in the paper to phoneme and speaker recognition.
引用
收藏
页码:1907 / 1916
页数:10
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