A dictionary updating scheme incorporating words elimination into Quantized Kernel Least-Mean-Squares for changing environments

Lei Sun, Badong Chen, Shengyu Nan, Zhiping Lin, Kar Ann Toh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Learning under time-varying environment is a challenging task since one has to deal with the ever changing distribution of data. A common and yet effective solution is to learn the data online and keep up with any ongoing changes. The Quantized Kernel Least-Squares (QKLMS) is an effective tool for online dictionary learning where the network size is capped by the quantization dictionary size. However, due to the lack of a mechanism to eliminate outdated words, learning can become irrelevant over time. In this paper, a mechanism to remove irrelevant words in the dictionary is proposed for QKLMS. Our experimental results based on chaotic time sequence prediction validate the capability of the developed method for time-varying data adaptation.

Original languageEnglish
Title of host publication2015 IEEE International Conference on Digital Signal Processing, DSP 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages911-915
Number of pages5
ISBN (Electronic)9781479980581, 9781479980581
DOIs
Publication statusPublished - 2015 Sep 9
EventIEEE International Conference on Digital Signal Processing, DSP 2015 - Singapore, Singapore
Duration: 2015 Jul 212015 Jul 24

Publication series

NameInternational Conference on Digital Signal Processing, DSP
Volume2015-September

Other

OtherIEEE International Conference on Digital Signal Processing, DSP 2015
CountrySingapore
CitySingapore
Period15/7/2115/7/24

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All Science Journal Classification (ASJC) codes

  • Signal Processing

Cite this

Sun, L., Chen, B., Nan, S., Lin, Z., & Toh, K. A. (2015). A dictionary updating scheme incorporating words elimination into Quantized Kernel Least-Mean-Squares for changing environments. In 2015 IEEE International Conference on Digital Signal Processing, DSP 2015 (pp. 911-915). [7252009] (International Conference on Digital Signal Processing, DSP; Vol. 2015-September). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICDSP.2015.7252009