Presentation 2017-07-13
Improving Performance of UCB1-tuned Algorithm by Lebesgue Spectrum Filter
Xinyu Cho, Kaori Kuroda, Yukio Murata, Song-Ju Kim, Makoto Naruse, Mikio Hasegawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In the researches on asynchronous chaotic CDMA, it has been shown that the sequences, which have negative autocorrelation, minimize asynchronous cross-correlation among the sequences. Such sequences can also improve the solution search performance of combinatorial optimization algorithms. In this report, we introduce such low cross-correlation dynamics to improve the performance of UCB1-tuned which is the best non-parametric algorithm for Multi-armed bandit (MAB) problems. To generate negative autocorrelation dynamics in UCB1-tuned algorithm, we apply the Lebesgue Spectrum Filter (LSF), which has been proposed in a research on the chaotic CDMA. The simulation results show that the performance of UCB1-tuned algorithm can be improved by using the negative autocorrelation dynamics generated by the LSF. We clarify performance improvement by analyzing auto correlation and cross-correlation of the searching sequences.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Multi-armed bandit problem / UCB1-tuned algorithm / Chaotic CDMA / Lebesgue Spectrum Filter
Paper # NLP2017-36
Date of Issue 2017-07-06 (NLP)

Conference Information
Committee NLP
Conference Date 2017/7/13(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Miyako Island Marine Terminal
Topics (in Japanese) (See Japanese page)
Topics (in English) etc.
Chair Masaharu Adachi(Tokyo Denki Univ.)
Vice Chair Norikazu Takahashi(Okayama Univ.)
Secretary Norikazu Takahashi(Nagaoka Univ. of Tech.)
Assistant Toshihiro Tachibana(Shonan Inst. of Tech.) / Masayuki Kimura(Kyoto Univ.)

Paper Information
Registration To Technical Committee on Nonlinear Problems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Improving Performance of UCB1-tuned Algorithm by Lebesgue Spectrum Filter
Sub Title (in English)
Keyword(1) Multi-armed bandit problem
Keyword(2) UCB1-tuned algorithm
Keyword(3) Chaotic CDMA
Keyword(4) Lebesgue Spectrum Filter
1st Author's Name Xinyu Cho
1st Author's Affiliation Tokyo University of Science(TUS)
2nd Author's Name Kaori Kuroda
2nd Author's Affiliation Tokyo University of Science(TUS)
3rd Author's Name Yukio Murata
3rd Author's Affiliation Tokyo University of Science(TUS)
4th Author's Name Song-Ju Kim
4th Author's Affiliation National Institute for Materials Science(NIMS)
5th Author's Name Makoto Naruse
5th Author's Affiliation National Institute of Information and Communications Technology(NICT)
6th Author's Name Mikio Hasegawa
6th Author's Affiliation Tokyo University of Science(TUS)
Date 2017-07-13
Paper # NLP2017-36
Volume (vol) vol.117
Number (no) NLP-121
Page pp.pp.47-52(NLP),
#Pages 6
Date of Issue 2017-07-06 (NLP)