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2011 Fiscal Year Annual Research Report

不動点理論に基づく機械学習アルゴリズムの構築とその無線通信システムへの応用

Research Project

Project/Area Number 20760252
Research InstitutionNiigata University

Principal Investigator

湯川 正裕  新潟大学, 自然科学系, 准教授 (60462743)

Keywords移動体通信 / 機械学習 / 情報通信工学
Research Abstract

本年度は,22年度までの研究で得られた「多領域オンライン学習アルゴリズム」をMIMO (Multiple Input Multiple Output)システムへ拡張し,MIMO多重アクセス通信路(MIMO-MAC)における有効性を実証した.これにより,(i)情報の曖昧さに対するロバスト性に加えて,(ii)高速で安定した収束性を,(iii)少ない計算コストで実現する高性能な機械学習アルゴリズムを構築することができる.この成果は国際会議「International Technical Conference on Circuits/Systems, Computers and Communications」で既発表である他,国際学術雑誌「IEEE Transactions on Signal Processing」に投稿済(査読中)である.また,収束速度を向上きせるため,並列射影に基づく多領域オンライン学習アルゴリズムを提案し,その有効性を実証した.このアルゴリズムは並列構造を持つため,並列計算機により,高速に実行可能であるという利点を持つ.この成果は国際,会議「International Workshop on Multidimensional (nD) Systems」で既発表である.更に,近年,信号処理・情報理論などの分野で注目を集めている圧縮センシングのアイディアを利用したスパース適応アルゴリズムを提案し,スパースな未知系に対して収束速度を著しく改善できることを実証した.この成果は「IEICE Signal Processing Symposium」で既発表である他,国際会議「IEEE International Symposium on Circuits and Systems:2012年5月,ソウル」の特別セッションで発表予定である.

  • Research Products

    (11 results)

All 2011

All Presentation (11 results)

  • [Presentation] Rank-selection criterion for Krylov-subspace-based adaptive filtering techniques2011

    • Author(s)
      Masahiro Yukawa
    • Organizer
      International Conference on Information, Communications and Signal Processing
    • Place of Presentation
      Singapore(招待講演)
    • Year and Date
      2011-12-15
  • [Presentation] Sparse Optimization Based on Lp Regularization2011

    • Author(s)
      Masahiro Yukawa, Shun-ichi Amari
    • Organizer
      Automatic Control Association Symposium
    • Place of Presentation
      豊橋(招待講演)
    • Year and Date
      2011-11-19
  • [Presentation] Sparse Adaptive Filters Based on Soft-Thresholding with Lp-Norm Inspired Weighting Techniques2011

    • Author(s)
      Masahiro Yukawa, Yuta Tawara, Masao Yamagishi, Isao Yamada
    • Organizer
      IEICE Signal Processing Symposium
    • Place of Presentation
      札幌
    • Year and Date
      2011-11-18
  • [Presentation] An Insight into Lp Penalized Least Squares Problems2011

    • Author(s)
      Masahiro Yukawa, Shun-ichi Amari
    • Organizer
      IEICE Signal Processing Symposium
    • Place of Presentation
      札幌
    • Year and Date
      2011-11-16
  • [Presentation] On extensions of LAES by information geometry : convex objectives and Lp-norm2011

    • Author(s)
      Masahiro Yukawa, Shun-ichi Amari
    • Organizer
      Asia Pacific Signal and Information Processing Association Annual Summit and Conference
    • Place of Presentation
      Xi'an : China
    • Year and Date
      2011-10-19
  • [Presentation] Adaptive beamforming by simultaneous projection in dual domains2011

    • Author(s)
      Masahiro Yukawa, Isao Yamada
    • Organizer
      International Workshop on Multidimensional (nD) Systems
    • Place of Presentation
      Poitiers : France(招待講演)
    • Year and Date
      2011-09-05
  • [Presentation] A deterministic analysis of linearly constrained adaptive filtering algorithms2011

    • Author(s)
      Masahiro Yukawa, Isao Yamada
    • Organizer
      European Signal Processing Conference
    • Place of Presentation
      Barcelona : Spain
    • Year and Date
      2011-08-30
  • [Presentation] How Is Gain of Hybrid Sparse Adaptive Filtering Algorithm Affected by Input Correlation?2011

    • Author(s)
      Osamu Toda, Masahiro Yukawa
    • Organizer
      Technical Report of IEICE
    • Place of Presentation
      那覇
    • Year and Date
      2011-07-01
  • [Presentation] Adaptive interference suppression in MIMO multiple access channels based on dual-domain approach2011

    • Author(s)
      Masahiro Yukawa, Youngchul Sung, Gilwon Lee
    • Organizer
      International Technical Conference on Circuits/Systems, Computers and Communications
    • Place of Presentation
      Gyeongju : Korea
    • Year and Date
      2011-06-20
  • [Presentation] Acceleration of adaptive proximal forward-backward splitting method and its application to sparse system identification2011

    • Author(s)
      Masao Yamagishi, Masahiro Yukawa, Isao Yamada
    • Organizer
      36th IEEE ICASSP
    • Place of Presentation
      Prague : Czech
    • Year and Date
      2011-05-27
  • [Presentation] On robustness of MIMO antenna selection scheme by minimizing smoothed L1 norm under nonlinear constraints2011

    • Author(s)
      Masahiro Yukawa, Isao Yamada
    • Organizer
      Annual Conference of the Institute of Systems, Control and Information Engineers
    • Place of Presentation
      大阪
    • Year and Date
      2011-05-18

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Published: 2013-06-26  

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