Title
Time Series Prediction For Kernel-Based Adaptive Filters Using Variable Bandwidth, Adaptive Learning-Rate, And Dimensionality Reduction
Abstract
Kernel-based adaptive filters are sequential learning algorithms, operating on reproducing kernel Hilbert spaces. Their learning performance is susceptible to the selection of appropriate values for kernel bandwidth and learning-rate parameters. Additionally, as these algorithms train the model using a sequence of input vectors, their computation scales with the number of samples. We propose a framework that addresses the previous open challenges of kernel-based adaptive filters. In contrast to similar methods, our proposal sequentially optimizes the bandwidth and learning-rate parameters using stochastic gradient algorithms that maximize the correntropy function. To remove redundant samples, a sparsification approach based on dimensionality reduction is introduced. The framework is validated on both synthetic and real-world data sets. Results show that our proposal converges to relatively low values of mean-square-error while provides stable solutions in real-world applications.
Year
DOI
Venue
2019
10.1109/icassp.2019.8683117
2019 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP)
Keywords
Field
DocType
Sequential learning, Adaptive learning-rate, Kernel adaptive filters, Correntropy
Kernel (linear algebra),Hilbert space,Dimensionality reduction,Pattern recognition,Computer science,Kernel Bandwidth,Bandwidth (signal processing),Adaptive filter,Artificial intelligence,Sequence learning,Computation
Conference
ISSN
Citations 
PageRank 
1520-6149
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
S. Garcia-Vega100.34
E. A. Leon-Gomez200.34
G. Castellanos-Dominguez322.09