Updated on 2025/09/30

写真a

 
SATO IKURO
 
Organization
School of Computing Specially Appointed Professor
Title
Specially Appointed Professor
External link

Papers

  • Transferring Teacher’s Invariance to Student Through Data Augmentation Optimization

    Tamotsu Kurioka, Teppei Suzuki, Rei Kawakami, Ikuro Sato

    2026

  • A Simple Finetuning Strategy Based on Bias-Variance Ratios of Layer-Wise Gradients

    Mao Tomita, Ikuro Sato, Rei Kawakami, Nakamasa Inoue, Satoshi Ikehata, Masayuki Tanaka

    2025

  • Integrating Generative and Contrastive Approaches for Human Action Recognition

    Pablo Cervantes, Yusuke Sekikawa, Ikuro Sato, Koichi Shinoda

    IEEE Access   2025

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/ACCESS.2025.3575707

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  • Robustifying Routers Against Input Perturbations for Sparse Mixture-of-Experts Vision Transformers

    Masahiro Kada, Ryota Yoshihashi, Satoshi Ikehata, Rei Kawakami, Ikuro Sato

    IEEE Open Journal of Signal Processing   2025

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/OJSP.2025.3536853

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  • Implicit Neural Representations for Variable Length Human Motion Generation

    Pablo Cervantes, Yusuke Sekikawa, Ikuro Sato, Koichi Shinoda

    2022

  • Canonical and compact point cloud representation for shape classification

    Fujiwara, Ken, Sato, Ikuro, Ambai, Mitsuru, Yoshida, Yuichi, Sakakura, Yoshiaki

    arXiv preprint arXiv:1809.04820   2018

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  • Towards Human-Friendly Referring Expression Generation.

    Tanaka, Mikihiro, Itamochi, Takayuki, Narioka, Kenichi, Sato, Ikuro, Ushiku, Yoshitaka, Harada, Tatsuya

    CoRR   2018

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    Ikuro Sato

    Tsubame ESJ.: e-science journal   2016

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  • Pairwise Rotation Hashing for High-dimensional Features

    Ishikawa, Kohta, Sato, Ikuro, Ambai, Mitsuru

    arXiv preprint arXiv:1501.07422   2015

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  • Apac: Augmented pattern classification with neural networks

    Sato, Ikuro, Nishimura, Hiroki, Yokoi, Kensuke

    arXiv preprint arXiv:1505.03229   2015

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  • Sparse isotropic hashing

    Sato, Ikuro, Ambai, Mitsuru, Suzuki, Koichiro

    Information and Media Technologies   8 ( 4 )   1031 - 1035   2013

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    Publishing type:Research paper (scientific journal)   Publisher:Information and Media Technologies Editorial Board  

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  • Distance computation between binary code and real vector for efficient keypoint matching

    Yamauchi, Yuji, Ambai, Mitsuru, Sato, Ikuro, Yoshida, Yuichi, Fujiyoshi, Hironobu

    IPSJ Transactions on Computer Vision and Applications   5   124 - 128   2013

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    Publishing type:Research paper (scientific journal)   Publisher:Information Processing Society of Japan  

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  • Fitting two nucleons inside a box: exponentially suppressed corrections to the Luscher's formula

    Bedaque, Paulo F., Sato, Ikuro

    arXiv preprint hep-lat/0702021   76 ( 3 )   034502 - 034502   2007

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    Publishing type:Research paper (scientific journal)   Publisher:APS  

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  • Baryon Spectroscopy using Anisotropic Clover Lattices

    Dudek, Jozef, Edwards, Rober, Joo, Balin, Lin, Huey-Wen, Mathur, Nilmani, Orginos, Kostas, Richards, David, Thomas, Anthony, Fleming, George, Juge, Jimmy

    2007

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  • Lattice QCD determination of patterns of excited baryon states

    Subhasish, Basak, Robert, Edwards, George, Fleming, Keisuke, Juge, Adam, Lichtl, Colin, Morningstar, David, Richards, Ikuro, Sato, Stephen, Wallace

    Physical Review D   76 ( 7 )   074504 - 074504   2007

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  • Lattice Hadron Physics Collaboration

    Edwards, Rober, Fleming, George, Juge, Jimmy, Lichtl, Adam, Mathur, Nilmani, Richards, David, Sato, Ikuro

    2006

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  • Lattice QCD determination of states with spin 5/2 or higher in the spectrum of nucleons

    Basak, Subhasish, Edwards, RG, Fleming, GT, Lichtl, A., Morningstar, C., Ricards, DG, Sato, I., Wallace, SJ

    arXiv preprint hep-lat/0609052   2006

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  • Light baryon spectrum using improved interpolating operators

    Basak, S., Edwards, RG, Fleming, GT, Juge, J., Lichtl, A., Richards, C., Sato, I., Wallace, SJ, Lattice Hadron, Physics Collaboration

    arXiv preprint hep-lat/0609072   2006

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  • Towards a determination of the spectrum of QCD using a space-time lattice

    Juge, KJ, Lichtl, A., Morningstar, C., Edwards, RG, Richards, DG, Basak, S., Wallace, S., Sato, I., Fleming, GT

    NSTAR 2005   215 - 224   2006

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    Publisher:World Scientific  

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  • All-to-all Propagators for Lattice Hadron Spectroscopy

    Juge, Jimmy, Lichtl, Adam, Morningstar, Colin, Dudek, Jozef, Edwards, Rober, Joo, Balin, Mathur, Nilmani, Richards, David, Sato, Ikuro, Wallace, Stephen and other

    2006

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  • Baryon operators and baryon spectroscopy

    Basak, S., Edwards, RG, Fleming, GT, Heller, UM, Lichtl, A., Morningstar, C., Richards, DG, Sato, I., Wallace, S.

    Nuclear Physics B-Proceedings Supplements   153 ( 1 )   242 - 249   2006

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier  

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  • Finite volume corrections to pi pi scattering

    Sato, Ikuro, Bedaque, Paulo F., Walker-Loud, Andre

    Physical Review D   73 ( 7 )   074501 - 074501   2006

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  • Baryonic sources using irreducible representations of the double-covered octahedral group

    Basak, S., Edwards, R., Fiebig, R., Fleming, GT, Heller, UM, Morningstar, C., Richards, D., Sato, I., Wallace, S., LHP Collaboration

    Nuclear Physics B-Proceedings Supplements   140   281 - 283   2005

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  • Analysis of N? spectra using matrices of correlation functions based on irreducible baryon operators

    Basak, S., Edwards, R., Fiebig, R., Fleming, GT, Heller, UM, Morningstar, C., Richards, D., Sato, I., Wallace, S., LHP Collaboration

    Nuclear Physics B-Proceedings Supplements   140   278 - 280   2005

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  • Clebsch-Gordan construction of lattice interpolated fields for excited baryons

    Basak, Subhasish, Edwards, Rober, Fleming, George T., Heller, Urs M., Morningstar, Colin, Richards, David, Sato, Ikuro, Wallace, Stephen J.

    Physical Review D   72 ( 7 )   074501 - 074501   2005

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  • Lattice QCD Simulations of Baryon Spectra and Development of Improved Interpolating Field Operators

    Sato, Ikuro

    2005

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    Publishing type:Doctoral thesis  

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  • Baryon Spectroscopy and Operator Construction in Lattice QCD

    Basak, S., Sato, I., Wallace, S., Edwards, R., Richards, DG, Fiebig, R., Fleming, GT, Heller, UM, Morningstar, C.

    Large NC QCD 2004   272 - 282   2005

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    Publisher:World Scientific  

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  • Group theoretical construction of extended baryon operators in lattice QCD

    Subhasish, Basak, Robert, Edwards, George, Fleming, Urs, Heller, Colin, Morningstar, David, Richards, Ikuro, Sato, Stephen, Wallace

    arXiv preprint hep-lat/0409093   72 ( 9 )   094506 - 094506   2005

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  • Combining quark and link smearing to improve extended baryon operators, PoS LAT2005 (2006) 076

    Basak, S., Sato, I., Wallace, S., Edwards, R., Richards, D.

    arXiv preprint hep-lat/0509179   2005

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  • Baryonic operators for lattice simulations

    Colloboration, LHP, Edwards, R., Fiebig, R., Fleming, G., Heller, UM, Morningstar, C., Richards, D., Sato, I., Wallace, S.

    Nuclear Physics B-Proceedings Supplements   129   236 - 238   2004

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  • Mass spectrum of N* and source optimization

    Collaboration, LHP, Basak, S., Edwards, R., Fiebig, R., Fleming, G., Heller, UM, Morningstar, C., Richards, D., Sato, I., Wallace, S.

    arXiv preprint hep-lat/0309091   129   209 - 211   2003

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  • Distribution of Irreducible Polynomials over F 2

    Hicks, Kenneth H., Mullen, Gary L., Sato, Ikuro

    Finite fields with applications to coding theory, cryptography and related areas   177 - 186   2002

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    Publisher:Springer  

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  • Baryon operators and spectroscopy in lattice QCD

    Subhasish, Basak, Robert, Edwards, Rudolf, Fiebig, George, Fleming, Urs, Heller, Colin, Morningstar, David, Richards, Ikuro, Sato, Stephen, Wallace

    Nuclear Physics B-Proceedings Supplements   128   186 - 192   2001

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Research Projects

  • 深層生成モデルを活用した構成的なパターン認識・理解

    Grant number:23H00490  2023.4 - 2026.3

    日本学術振興会  科学研究費助成事業  基盤研究(A)

    篠田 浩一, 井上 中順, 横田 理央, 川上 玲, 佐藤 育郎

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    Grant amount:\47190000 ( Direct Cost: \36300000 、 Indirect Cost:\10890000 )

    本研究課題では,識別の対象(インスタンス)を属性の集合(束)とみなし,特徴量空間においてその特徴を属性ごとに分解する.そして,これらの属性特徴からインスタンスを再合成する過程で属性特徴を最適化することで,各属性を高精度で識別し,かつ,外れ値に対し頑健な識別手法を実現することを目的としている。このために深層生成モデルと高密度な属性アノテーションに基づく学習手法を開発する.従来研究の多くが対象とその属性が一対一に対応する平坦な意味構造を仮定していたのに対し,本研究は多くの属性が複雑に絡み合う対象における複数の属性を同時に識別することを可能にする.新しい属性やクラスの創発も視野に入れる.より具体的には、深層学習を用いた「合成による識別」のアプローチにより,構成的なパターン認識・理解を行う方法論を確立する.人の動作認識,話者・感情認識,マルチモーダル認識の3つのタスクで横断的に評価し,従来に比べ高い識別性能を目指す.初年度である本年度は、人の動作認識、話者・感情認識、マルチモーダル認識の各々の課題において、評価データベースの構築と、ベースライン方式の開発を行った。これらと並行して、比較的小規模なタスクで、拡散モデルなどの生成モデルを用いて識別を行う方式の開発を行った。また、ニューラル構造探索などを用いて生成モデルの効率的な学習を行う方式も開発した。特に、センサーと映像のマルチモーダル認識における基本方式の構築、およびデータベース構築、人間の歩容認識の基本方式の開発、マルチモーダル感情認識の基本方式の開発を行った。

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  • 知識限界を明確化する機能分化された深層学習

    Grant number:23K24898  2022.4 - 2025.3

    日本学術振興会  科学研究費助成事業  基盤研究(B)

    佐藤 育郎, 篠田 浩一, 井上 中順, 川上 玲

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    Grant amount:\17420000 ( Direct Cost: \13400000 、 Indirect Cost:\4020000 )

    シナプティック記憶テーマについて,従来法の課題を解決できる理論的枠組みを構築した.巡回型のモダンホップフィールドネットワークは,入力クエリに対し,モデルの内部に持つ記憶データの関連付けが行えるが,クエリが分布外データに相当するときに誤った関連付けを行ってしまう.この課題に対し,我々は分布の内外判定機能を持たせることによって原理的に課題を解決できる方法を定式化した.現在論文を執筆中である.
    人物行動の生成的予測テーマについて,異なる人体モデルに基づくデータを統括的に学習に用いることのできるアルゴリズムを開発し,国際会議ECCVに論文を投稿した(査読中).この手法により,人体モデルの定義が異なるデータセットを学習でき,より自然な行動生成が行えることを確認した.
    視点変化の下での三次元理解テーマについて,生成器と回帰器の協調的推論という新規な提案を行い,回帰器のみを用いる従来法に対する性能改善効果を確認した.国際会議ICIPに論文を投稿した(査読中).機能分化されたモデル群(異なる目的関数によって最適化された複数のネットワーク)が協調的に働くことで下流タスクの性能が改善できることを示すことが出来た.
    時系列整合判定テーマについて,既存の自動運転用の認識器の特徴に整合を壊す成分が含まれる課題を確認した.
    目標値伝播法テーマについては,従来法の性能改善として,順・逆ネットワークのヤコビアンの整合性を取る方法を提案した(Y. Baoら,AAAI 2024).

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