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Extreme Signal Processing

Research Project

Project/Area Number 20H02145
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21020:Communication and network engineering-related
Research InstitutionOsaka University (2022)
Tokyo University of Agriculture and Technology (2020-2021)

Principal Investigator

Tanaka Yuichi  大阪大学, 大学院工学研究科, 教授 (10547029)

Co-Investigator(Kenkyū-buntansha) 田中 聡久  東京農工大学, 工学(系)研究科(研究院), 教授 (70360584)
石田 寛  東京農工大学, 工学(系)研究科(研究院), 教授 (80293041)
小野 峻佑  東京工業大学, 情報理工学院, 准教授 (60752269)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2022: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2021: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Keywords信号処理 / 深層学習 / サンプリング定理 / 数理モデリング / グラフ深層学習 / 深層展開 / グラフ信号処理 / グラフ学習
Outline of Research at the Start

エクストリーム信号処理を創出するための研究に取り組む.エクストリーム信号とは,非常にSN比が低く,一期一会に近い環境から得られたセンサデータのことを指す.今までの信号処理や機械学習技術は,データの数と質が揃っているビッグデータには非常に有効であるが,エクストリーム信号の解析には限界があった.本研究では数理的モデリングと深層学習の統合により,エクストリーム信号――スモールデータ――の修復・復元システムの実現を目的とする.

Outline of Final Research Achievements

We conducted research aimed at creating a data analysis technology for the restoration of "extreme signals," i.e., sensor data obtained from environments with very low signal-to-noise ratios and approaching a "once-in-a-lifetime" situation, as well as knowledge discovery and information extraction from extreme signals. We focused on graph signal processing and deep unrolling, and theoretically investigated the graph sampling theorem. We demonstrated the superior performance of methods using deep unrolling for sensor data restoration and interpolation/noise removal of data on time-varying graphs compared to conventional methods.

Academic Significance and Societal Importance of the Research Achievements

信号処理技術と深層学習技術を適切に組み合わせ,利用することで,様々な劣化状態のデータ(信号)に対して優れた修復手法が実現できることを明らかにした.特に,サンプリング定理や深層展開のグラフ上データへの拡張に関して成果を挙げた.本研究から得られた成果は,今後必須となるグリーンなデータ解析技術の嚆矢となる技術である.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (33 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (8 results) Journal Article (13 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 13 results,  Open Access: 7 results) Presentation (11 results) (of which Int'l Joint Research: 1 results,  Invited: 5 results) Book (1 results)

  • [Int'l Joint Research] ワイツマン科学研究所(イスラエル)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] 南カリフォルニア大学/パデュー大学(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ヨーク大学(カナダ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ワイツマン科学研究所(イスラエル)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] パデュー大学/南カリフォルニア大学(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] 南カリフォルニア大学(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] ワイツマン科学研究所(イスラエル)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] ヨーク大学(カナダ)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Multi-Channel Sampling on Graphs and Its Relationship to Graph Filter Banks2023

    • Author(s)
      Hara Junya、Tanaka Yuichi
    • Journal Title

      IEEE Open Journal of Signal Processing

      Volume: 4 Pages: 148-156

    • DOI

      10.1109/ojsp.2023.3249112

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Graph Signal Sampling Under Stochastic Priors2023

    • Author(s)
      Hara Junya、Tanaka Yuichi、Eldar Yonina C.
    • Journal Title

      IEEE Transactions on Signal Processing

      Volume: 71 Pages: 1-14

    • DOI

      10.1109/tsp.2023.3267990

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Graph Signal Restoration Using Nested Deep Algorithm Unrolling2022

    • Author(s)
      Nagahama Masatoshi、Yamada Koki、Tanaka Yuichi、Chan Stanley H.、Eldar Yonina C.
    • Journal Title

      IEEE Transactions on Signal Processing

      Volume: 70 Pages: 3296-3311

    • DOI

      10.1109/tsp.2022.3180546

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multimodal Graph Signal Denoising Via Twofold Graph Smoothness Regularization with Deep Algorithm Unrolling2022

    • Author(s)
      Nagahama Masatoshi、Tanaka Yuichi
    • Journal Title

      Proc. IEEE ICASSP 2022

      Volume: 1 Pages: 1-5

    • DOI

      10.1109/icassp43922.2022.9747784

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sampling Set Selection for Graph Signals under Arbitrary Signal Priors2022

    • Author(s)
      Hara Junya、Tanaka Yuichi
    • Journal Title

      Proc. IEEE ICASSP 2022

      Volume: 1 Pages: 1-5

    • DOI

      10.1109/icassp43922.2022.9747703

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Graph Learning Information Criterion2022

    • Author(s)
      Yamada Koki、Tanaka Yuichi
    • Journal Title

      Proc. IEEE ICASSP 2022

      Volume: 1 Pages: 1-5

    • DOI

      10.1109/icassp43922.2022.9746309

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structure-Aware Multi-Hop Graph Convolution for Graph Neural Networks2022

    • Author(s)
      Li Yang、Tanaka Yuichi
    • Journal Title

      IEEE Access

      Volume: 10 Pages: 16624-16633

    • DOI

      10.1109/access.2022.3149619

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Temporal Multiresolution Graph Learning2021

    • Author(s)
      Yamada Koki、Tanaka Yuichi
    • Journal Title

      IEEE Access

      Volume: 9 Pages: 143734-143745

    • DOI

      10.1109/access.2021.3120994

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Design of Graph Signal Sampling Matrices for Arbitrary Signal Subspaces2021

    • Author(s)
      Hara Junya、Yamada Koki、Ono Shunsuke、Tanaka Yuichi
    • Journal Title

      Proceedings of IEEE ICASSP 2021

      Volume: 1 Pages: 5275-5279

    • DOI

      10.1109/icassp39728.2021.9414240

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Graph Signal Denoising Using Nested-Structured Deep Algorithm Unrolling2021

    • Author(s)
      Nagahama Masatoshi、Yamada Koki、Tanaka Yuichi、Chan Stanley H.、Eldar Yonina C.
    • Journal Title

      Proceedings of IEEE ICASSP 2021

      Volume: 1 Pages: 5280-5284

    • DOI

      10.1109/icassp39728.2021.9414093

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Generalized Sampling on Graphs With Subspace and Smoothness Priors2020

    • Author(s)
      Tanaka Yuichi、Eldar Yonina C.
    • Journal Title

      IEEE Transactions on Signal Processing

      Volume: 68 Pages: 2272-2286

    • DOI

      10.1109/tsp.2020.2982325

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Sampling Signals on Graphs: From Theory to Applications2020

    • Author(s)
      Tanaka Yuichi、Eldar Yonina C.、Ortega Antonio、Cheung Gene
    • Journal Title

      IEEE Signal Processing Magazine

      Volume: 37 Issue: 6 Pages: 14-30

    • DOI

      10.1109/msp.2020.3016908

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Generalized Graph Spectral Sampling with Stochastic Priors2020

    • Author(s)
      Hara Junya、Tanaka Yuichi、Eldar Yonina C.
    • Journal Title

      Proceedings of 2020 IEEE ICASSP

      Volume: 1 Pages: 1-5

    • DOI

      10.1109/icassp40776.2020.9053720

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] グラフ上データのための深層展開2023

    • Author(s)
      田中雄一
    • Organizer
      2023年電子情報通信学会総合大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Multiple-type Structure and Position-aware Attention-based Graph Convolution2022

    • Author(s)
      李 陽,田中雄一
    • Organizer
      第37回信号処理シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 多チャネルグラフサンプリングとそのグラフフィルタバンクとの関係2022

    • Author(s)
      原惇也,田中雄一
    • Organizer
      第37回信号処理シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] グラフサンプリング定理に基づく動的なセンサ位置選択2022

    • Author(s)
      野村紗希,原惇也,田中雄一
    • Organizer
      第37回信号処理シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] グラフ信号の平滑性を考慮した可変k近傍グラフ構築2022

    • Author(s)
      田丸明日香,原惇也,田中雄一
    • Organizer
      第37回信号処理シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] グラフカットを用いた符号付きグラフのバランス化2022

    • Author(s)
      横田陽樹,原淳也,田中雄一,Gene Cheung
    • Organizer
      第37回信号処理シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 深層展開を用いた時変グラフ信号の再構成2022

    • Author(s)
      小島颯,山田宏樹,野口ひかり,田中 雄一
    • Organizer
      第37回信号処理シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] エクストリーム信号処理:スモールデータから知見を得る方法2022

    • Author(s)
      田中雄一
    • Organizer
      データサイエンス的手法により探求する天文学
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] GRAPH SPECTRAL IMAGE PROCESSING2020

    • Author(s)
      Gene Cheung and Yuichi Tanaka
    • Organizer
      IEEE ICIP 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] グラフ上の信号に対するサンプリング2020

    • Author(s)
      田中雄一
    • Organizer
      電子情報通信学会信号処理研究会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] ネットワーク上の信号処理とグラフサンプリング定理2020

    • Author(s)
      田中雄一
    • Organizer
      第1回SICEポストコロナ未来社会ワークショップ
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Book] グラフ信号処理の基礎と応用2023

    • Author(s)
      田中 雄一
    • Total Pages
      250
    • Publisher
      コロナ社
    • ISBN
      9784339014051
    • Related Report
      2022 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

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