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「かたち」と「うごき」を表す高次元データ記述子の開発

Planned Research

Project AreaEstablishing data descriptive science and its cross-disciplinary applications
Project/Area Number 22H05107
Research Category

Grant-in-Aid for Transformative Research Areas (A)

Allocation TypeSingle-year Grants
Review Section Transformative Research Areas, Section (II)
Research InstitutionKyoto University

Principal Investigator

平岡 裕章  京都大学, 高等研究院, 教授 (10432709)

Co-Investigator(Kenkyū-buntansha) 石井 豊  九州大学, 数理学研究院, 教授 (20304727)
池 祐一  東京大学, 大学院数理科学研究科, 准教授 (50850400)
落合 啓之  九州大学, マス・フォア・インダストリ研究所, 教授 (90214163)
Project Period (FY) 2022-06-16 – 2027-03-31
Project Status Granted (Fiscal Year 2026)
Budget Amount *help
¥160,550,000 (Direct Cost: ¥123,500,000、Indirect Cost: ¥37,050,000)
Fiscal Year 2026: ¥34,710,000 (Direct Cost: ¥26,700,000、Indirect Cost: ¥8,010,000)
Fiscal Year 2025: ¥34,320,000 (Direct Cost: ¥26,400,000、Indirect Cost: ¥7,920,000)
Fiscal Year 2024: ¥34,060,000 (Direct Cost: ¥26,200,000、Indirect Cost: ¥7,860,000)
Fiscal Year 2023: ¥33,410,000 (Direct Cost: ¥25,700,000、Indirect Cost: ¥7,710,000)
Fiscal Year 2022: ¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000)
Keywordsパーシステントホモロジー / Perverse sheaf / 層理論 / 高次元可視化 / 表現論 / D加群 / 柏原クリスタル / 結晶基底 / 力学系 / マグニチュードホモロジー / バーチャルリアリティ / 代数解析
Outline of Research at the Start

現代社会に氾濫する高次元データは,その構造を直接「見る」ことができない.低次元空間への射影や断面を用いる従来法からは,構造の直感的理解を得ることは難しく,さらには幾何・トポロジー構造が潰されたものになる問題点もある.そこで本研究では,高次元データを直感的に知覚できるデータ記述子の開発を目標に据えた,以下の3テーマを実施する.
テーマ1:バーチャルリアリティ(VR)を用いたインタラクティブな高次元可視化の数理
テーマ2:パーシステントホモロジーの代数解析・代数幾何的研究とその応用
テーマ3:マグニチュードホモロジーの自然言語処理・オミックスデータ解析への応用

Outline of Annual Research Achievements

テーマ1:高エネルギー加速器研究機構の木村正雄氏のグループ、早稲田大学の五十嵐治雄氏との共同で、X線分光顕微鏡法による非破壊マッピングの画像をバーチャル・リアリティを用いて可視化するシステムを構築した。この画像は対象物の3自由度に加えて時間や反応度を変数として含むため、実質的に5次元のデータとなる。このような高次元データを多重射影の方法で可視化することで、破壊のトリガーサイトの発見を容易にした。
テーマ2:
前年度、マルチパラメータ・パーシステントホモロジーが定める表現代数多様体に柏原クリスタルの構造が入ることを証明することに成功した。その結果を受けて、今年度はそのクリスタル構造と量子群が定めるクリスタル構造の関係を調べる研究に着手した。2 x 2型で具体的に柏原作用素を構成することで、量子群が定めるクリスタルへの埋め込みが実現できないことが証明できた。この研究に付随して、2 x 2型の既約成分の特徴付けを用いて2 x 3型の既約成分を列挙することにも成功した。
テーマ3:前年度に開発した手法「Topological node2vec」について、重みを定める際に用いるランダムウォークの埋め込み結果に対する初期値依存性について数値的研究を実施し、埋め込みへの依存性は極めて低いことを確認した。また自然言語処理、およびHi-C (high-throughput chromosome conformation capture)データへの適用を目指した、当該分野の先行研究の調査を開始した。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

テーマ1:
まず材料科学における非破壊マッピングの5次元画像の可視化については、上述のように多重射影を用いたシステムが完成して、その成果は Journal of Synchrotron Radiation から論文として2024年に出版された。また同時に、運動視差と両眼視差を組み合わせて単一の画像のみを用いた高次元可視化のプロジェクトも開始した。特にそのアルゴリズムを書き下し、そのプロトタイプをVR上で実装した。
テーマ2:
マルチパラメータ・パーシステントホモロジーに対する柏原クリスタルの幾何学的構成に関して、現在論文を執筆中であり2025年には投稿できる予定である。またそこから派生した問題である、既約分解の具体的な構成についても比較的サイズが小さい問題について解決することができ、こちらについても論文執筆中である。昨年度得られた6 packsと区間近似理論の関係に関する結果については、ホモロジー代数的な一般化が可能であることが判明し、現在(1パラメータ方向に完全性を課した表現圏の代数的な性質に関する)定理の証明に取り掛かっている。
テーマ3:
開発手法「Topological node2vec」についての論文をJournal of machine learning researchから出版した。これを元にした応用研究への着手も開始できていることから、概ね計画通りに進んでいる。

Strategy for Future Research Activity

テーマ1:
今後の研究としては二つ考えられる。一つ目は、上述した多重射影による高次元可視化システムを材料科学以外の分野に応用することである。このシステムの強みは密でないフラクタル状の対象物の可視化に効果的な点にあるため、例えば地層形状やその中の地下水の分布などの解析に活かしたい。二つ目の運動視差と両眼視差を組み合わせて高次元可視化を目指すプロジェクトについては、脳神経科学の専門家との共同作業を計画している。
テーマ2:
今後の研究としては、これまでに得られた柏原クリスタルに関する成果を受けて、2025年度からは幾何学的表現論的研究をさらに加速していく。特にLusztigによる標準基底の理論とマルチパラメータ・パーシステントホモロジーの関係に関する研究に着手する。特にperverse層のパーシステントホモロジー的な意味付けを明確する研究に重点的に取り組む。
テーマ3:
Hi-CデータやMC3Cデータへのtopological node2vecの適用を始める。その際、本手法をグラフから単体複体へ拡張させることによって、DNA上の2点より多い複数点間のコンタクト情報を直接扱える数理的手法の開発にも取り組む。

Report

(3 results)
  • 2024 Annual Research Report
  • 2023 Annual Research Report
  • 2022 Annual Research Report
  • Research Products

    (86 results)

All 2025 2024 2023 2022 Other

All Int'l Joint Research (2 results) Journal Article (24 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 24 results,  Open Access: 20 results) Presentation (57 results) (of which Int'l Joint Research: 26 results,  Invited: 35 results) Book (3 results)

  • [Int'l Joint Research] IST Austria(オーストリア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Ohio State University(米国)

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Single-cell multiomic analysis revealed the differentiation, localization, and heterogeneity of IL10+ Foxp3? follicular T cells in humans2025

    • Author(s)
      Fujioka Shusei、Fujioka Mayu、Imoto Yusuke、Harada Yasuyo、Yoshitomi Hiroyuki、Kubo Masato、Hiraoka Yasuaki、Ueno Hideki
    • Journal Title

      International Immunology

      Volume: - Issue: 8 Pages: 475-491

    • DOI

      10.1093/intimm/dxaf014

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Linking structure and process in dendritic growth using persistent homology with energy analysis2025

    • Author(s)
      Tone Misato、Sato Shunsuke、Kunii Sotaro、Obayashi Ippei、Hiraoka Yasuaki、Ogawa Yui、Fukidome Hirokazu、Foggiatto Alexandre Lira、Mitsumata Chiharu、Nagaoka Ryunosuke、Varadwaj Arpita、Matsuda Iwao、Kotsugi Masato
    • Journal Title

      Science and Technology of Advanced Materials: Methods

      Volume: 5 Issue: 1

    • DOI

      10.1080/27660400.2025.2475735

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The balance between IFN-γ and ERK/MAPK signaling activities ensures lifelong maintenance of intestinal stem cells2025

    • Author(s)
      Nakajima-Koyama May、Kabata Mio、Lee Joonseong、Sogabe Yuko、Sakurai Satoko、Hirota Akira、Kimura Mizuki、Nakamura Tomonori、Imoto Yusuke、Kometani Kohei、Hamazaki Yoko、Hiraoka Yasuaki、Saitou Mitinori、Nishida Eisuke、Yamamoto Takuya
    • Journal Title

      Cell Reports

      Volume: 44 Issue: 3 Pages: 115286-115286

    • DOI

      10.1016/j.celrep.2025.115286

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Tamarkin’s separation theorem for non-compact objects in cotangent bundles2025

    • Author(s)
      Ike Yuichi、Kuwagaki Tatsuki
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: 153 Issue: 8 Pages: 3555-3561

    • DOI

      10.1090/proc/17228

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Visualization of four-dimensional X-ray absorption fine structure data using a virtual reality system2025

    • Author(s)
      Igarashi Haruo、Kido Daiki、Ishii Yutaka、Niwa Yasuhiro、Okamoto Atsushi、Kimura Masao
    • Journal Title

      Journal of Synchrotron Radiation

      Volume: 32 Issue: 1 Pages: 162-170

    • DOI

      10.1107/s1600577524011226

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A D-module approach to invariant distributions with finitely many orbits2025

    • Author(s)
      Ochiai Hiroyuki
    • Journal Title

      Indagationes Mathematicae

      Volume: 36 Issue: 2 Pages: 497-506

    • DOI

      10.1016/j.indag.2024.07.006

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantification of the Coercivity Factor in Soft Magnetic Materials at Different Frequencies Using Topological Data Analysis2024

    • Author(s)
      Nagaoka Ryunosuke、Masuzawa Ken、Taniwaki Michiki、Lira Foggiatto Alexandre、Yamazaki Takahiro、Obayashi Ippei、Hiraoka Yasuaki、Mitsumata Chiharu、Kotsugi Masato
    • Journal Title

      IEEE Transactions on Magnetics

      Volume: 60 Issue: 9 Pages: 1-5

    • DOI

      10.1109/tmag.2024.3408002

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Analysis of the Excess Loss in High-Frequency Magnetization Process Through Machine Learning and Topological Data Analysis2024

    • Author(s)
      Foggiatto Alexandre Lira、Nagaoka Ryunosuke、Taniwaki Michiki、Yamazaki Takahiro、Ogasawara Takeshi、Obayashi Ippei、Hiraoka Yasuaki、Mitsumata Chiharu、Kotsugi Masato
    • Journal Title

      IEEE Transactions on Magnetics

      Volume: 60 Issue: 9 Pages: 1-5

    • DOI

      10.1109/tmag.2024.3406717

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Symbolic dynamics for H?non maps near the boundary of the horseshoe locus2024

    • Author(s)
      HIRONAKA YUKI、ISHII YUTAKA
    • Journal Title

      Ergodic Theory and Dynamical Systems

      Volume: 45 Issue: 1 Pages: 140-174

    • DOI

      10.1017/etds.2024.34

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] H?non Maps: A List of Open Problems2024

    • Author(s)
      de H?non Julia X?nelkis
    • Journal Title

      Arnold Mathematical Journal

      Volume: 10 Issue: 4 Pages: 585-620

    • DOI

      10.1007/s40598-024-00252-x

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Atomic and Electronic Structure in MgO-SiO<sub>2</sub>2024

    • Author(s)
      Yuta Shuseki, Shinji Kohara, Tomoaki Kaneko, Keitaro Sodeyama, Yohei Onodera, Chihiro Koyama, Atsunobu Masuno, Shunta Sasaki, Shohei Hatano, Motoki Shiga, Ippei Obayashi, Yasuaki Hiraoka, Junpei T. Okada, Akitoshi Mizuno et al.
    • Journal Title

      The Journal of Physical Chemistry A

      Volume: 128 Issue: 4 Pages: 716-726

    • DOI

      10.1021/acs.jpca.3c05561

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Completeness of derived interleaving distances and sheaf quantization of non-smooth objects2024

    • Author(s)
      Asano Tomohiro、Ike Yuichi
    • Journal Title

      Mathematische Annalen

      Volume: N/A Issue: 2 Pages: 2991-3037

    • DOI

      10.1007/s00208-024-02815-x

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Symbolic dynamics for Henon maps near the boundary of the horseshoe locus.2024

    • Author(s)
      Yuki Hironaka and Yutaka Ishii
    • Journal Title

      Ergodic Theory and Dynamical Systems

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] V-Mapper: topological data analysis for high-dimensional data with velocity2023

    • Author(s)
      Y Imoto*, Y Hiraoka
    • Journal Title

      Nonlinear Theory and Its Applications, IEICE

      Volume: 14 Issue: 2 Pages: 92-105

    • DOI

      10.1587/nolta.14.92

    • ISSN
      2185-4106
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Girth, magnitude homology and phase transition of diagonality2023

    • Author(s)
      Asao Yasuhiko、Hiraoka Yasuaki、Kanazawa Shu
    • Journal Title

      Proceedings of the Royal Society of Edinburgh: Section A Mathematics

      Volume: 154 Issue: 1 Pages: 221-247

    • DOI

      10.1017/prm.2023.7

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mapping firms’ locations in technological space: A topological analysis of patent statistics2023

    • Author(s)
      Escolar Emerson G.、Hiraoka Yasuaki、Igami Mitsuru、Ozcan Yasin
    • Journal Title

      Research Policy

      Volume: 52 Issue: 8 Pages: 104821-104821

    • DOI

      10.1016/j.respol.2023.104821

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Exact convergence rates of alternating projections for nontransversal intersections2023

    • Author(s)
      Ochiai, Hiroyuki; Sekiguchi, Yoshiyuki; Waki, Hayato
    • Journal Title

      Jpn. J. Ind. Appl. Math.

      Volume: Vol.41, No.1 Pages: 57-83

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A study of a Fuchsian system of rank 8 in 3 variables and the ordinary differential equations as its restrictions2023

    • Author(s)
      Ebisu, Akihito; Haraoka, Yoshishige; Kaneko, Masanobu; Ochiai, Hiroyuki; Sasaki, Takeshi; Yoshida, Masaaki
    • Journal Title

      Osaka J. Math.

      Volume: Vol.60, No.1 Pages: 153-206

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The γ-support as a micro-support2023

    • Author(s)
      Asano Tomohiro、Guillermou Stephane、Humiliere Vincent、Ike Yuichi、Viterbo Claude
    • Journal Title

      Comptes Rendus. Mathematique

      Volume: 361 Issue: G8 Pages: 1333-1340

    • DOI

      10.5802/crmath.499

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Adaptive Topological Feature via Persistent Homology: Filtration Learning for Point Clouds2023

    • Author(s)
      Naoki Nishikawa, Yuichi Ike, Kenji Yamanishi
    • Journal Title

      Advances in Neural Information Processing Systems (NeurIPS 2023)

      Volume: 36

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Exact Convergence Rates of Alternating Projections for Nontransversal Intersections2022

    • Author(s)
      Hiroyuki Ochiai, Yoshiyuki Sekiguchi, and Hayato Waki
    • Journal Title

      Japan Journal of Industrial and Applied Mathematics

      Volume: ー Issue: 1 Pages: 57-83

    • DOI

      10.1007/s13160-023-00584-9

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Algebraic stability theorem for derived categories of zigzag persistence modules2022

    • Author(s)
      Hiraoka Yasuaki、Ike Yuichi、Yoshiwaki Michio
    • Journal Title

      Journal of Topology and Analysis

      Volume: - Issue: 01 Pages: 1-45

    • DOI

      10.1142/s1793525322500091

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Persistent Homology Analysis for Materials Research and Persistent Homology Software: HomCloud2022

    • Author(s)
      Obayashi Ippei、Nakamura Takenobu、Hiraoka Yasuaki
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 91 Issue: 9 Pages: 091013-091013

    • DOI

      10.7566/jpsj.91.091013

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Resolution of the curse of dimensionality in single-cell RNA sequencing data analysis2022

    • Author(s)
      Yusuke Imoto, Tomonori Nakamura, Emerson G Escolar, Michio Yoshiwaki, Yoji Kojima, Yukihiro Yabuta, Yoshitaka Katou, Takuya Yamamoto, Yasuaki Hiraoka, Mitinori Saitou
    • Journal Title

      Life Science Alliance

      Volume: 5 Issue: 12 Pages: 202201591-202201591

    • DOI

      10.26508/lsa.202201591

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Is $\mathfrak{M}$ disconnected?2025

    • Author(s)
      Yutaka Ishii
    • Organizer
      Dynamical Systems Seminar
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] On some conjectures concerning the entropy of Lozi maps.2025

    • Author(s)
      Yutaka Ishii
    • Organizer
      New development of dynamical systems
    • Related Report
      2024 Annual Research Report
  • [Presentation] γ-supports and microlocal sheaf theory2024

    • Author(s)
      Yuichi Ike
    • Organizer
      Geometry and Mathematical Physics
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] γ-supports and sheaves2024

    • Author(s)
      Yuichi Ike
    • Organizer
      Tuesday Seminar on Topology
    • Related Report
      2024 Annual Research Report
  • [Presentation] Higher-dimensional Birkhoff attractors as γ-supports and their properties2024

    • Author(s)
      Yuichi Ike
    • Organizer
      One-day workshop on contact and symplectic dynamics
    • Related Report
      2024 Annual Research Report
  • [Presentation] Is $\mathfrak{M}$ disconnected?2024

    • Author(s)
      Yutaka Ishii
    • Organizer
      NCTS workshop on dynamical systems
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pseudo-monodromy and the Mandelbrot set.2024

    • Author(s)
      Yutaka Ishii
    • Organizer
      Workshop on complex dynamic
    • Related Report
      2024 Annual Research Report
  • [Presentation] A D-module approach to invariant distributions with finitely many orbits2024

    • Author(s)
      Hiroyuki Ochiai
    • Organizer
      Branching Problems for Representations of Real, P-Adic and Adelic Groups (24w5220)
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Linear algebraic approach to commutative ladder of size 2 times 3.2024

    • Author(s)
      Hiroyuki Ochiai
    • Organizer
      Workshop on Data Science and related mathematics in Wakkanai
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 特殊関数論は応用できるのか2024

    • Author(s)
      落合 啓之
    • Organizer
      Intersection of Pure Mathematics and Applied Mathematics Re:
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 応用数学2024

    • Author(s)
      落合 啓之
    • Organizer
      JST CRDS 俯瞰ワークショップ 『数理科学』
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] Special Function2024

    • Author(s)
      Hiroyuki Ochiai
    • Organizer
      研究集会(Ⅱ)機械学習と数理モデルの融合と理論の深化Ⅱ
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 有限型多重旗多様体の分類2024

    • Author(s)
      落合 啓之
    • Organizer
      センター研究員数物班動向調査
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] Deformation of prehomogeneous action2024

    • Author(s)
      Hiroyuki Ochiai
    • Organizer
      The Ulaan Khad workshop on mathematics
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On International Actuarial Notation from Classroom2024

    • Author(s)
      Hiroyuki Ochiai
    • Organizer
      2025 Kyushu-Thammasat Symposium on Actuarial Science ; Re
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] ゲームプログラマのための数学の歩き方 - スペクトルグラフ理論編2024

    • Author(s)
      長谷川 勇, 前田 航希, 鍛冶 静雄, 落合 啓之
    • Organizer
      CEDEC2024
    • Related Report
      2024 Annual Research Report
  • [Presentation] A mathematician meets Computer Graphics2024

    • Author(s)
      Hiroyuki Ochiai
    • Organizer
      Joint meeting of the NZMS, AustMS and AMS
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] scEGOT: Single-cell trajectory inference framework based on entropic Gaussian mixture optimal transport2024

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      The Ninth Pacific Rim Conference In Mathematics Darwin
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] scEGOT: Single-cell trajectory inference framework based on entropic Gaussian mixture optimal transport2024

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      IMS-NTU joint workshop on Biomolecular Topology: Modelling and Data Analysis
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] scEGOT: Single-cell trajectory inference framework based on entropic Gaussian mixture optimal transport. Data driven dynamics2024

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      Data driven dynamics, CRM
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Some topics on topological & geometric data analysis2024

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      Colloquium at Kavli Institute for the Physics and Mathematics of the Universe
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] scEGOT: Single-cell trajectory inference based on entropic Gaussian mixture optimal transport2024

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      ToGeDa seminar in KAIST
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Persistent homology from viewpoints of representation, probability, and application2024

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      KAIST Colloquium
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 超幾何関数のテンソル積2024

    • Author(s)
      落合 啓之
    • Organizer
      第29回 沼津改め 静岡研究会--- 幾何,複素解析,そして数理物理
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 負のパラメータを持つガウスの超幾何級数2024

    • Author(s)
      落合 啓之
    • Organizer
      第7回 Langlands and Harmonic Analysis
    • Related Report
      2023 Annual Research Report
  • [Presentation] 位相的データ解析と機械学習2024

    • Author(s)
      池祐一
    • Organizer
      愛媛大学DS研究セミナー
    • Related Report
      2023 Annual Research Report
  • [Presentation] パーシステントホモロジーとその応用2024

    • Author(s)
      池祐一
    • Organizer
      純粋数学者のためのデータサイエンス入門
    • Related Report
      2023 Annual Research Report
  • [Presentation] Pseudo-monodromy and the Mandelbrot set.2024

    • Author(s)
      Yutaka Ishii
    • Organizer
      dynamics seminar
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 5次元データ可視化システムの開発2024

    • Author(s)
      城戸大貴,五十嵐治雄、石井豊、木村正雄
    • Organizer
      第37回日本放射光学会年会 放射光科学合同シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Curse of dimensionality in persistence diagrams -How to characterize topology in single-cell resolution-2023

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      Dagstuhl Seminar: Topological Data Analysis and Applications
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Curse of dimensionality in persistence diagrams -How to characterize topology in single-cell resolution-2023

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      FoCM 2023: Computational Geometry and Topology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Interval approximation and connected persistence diagram in commutative ladder quivers2023

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      Nordic Congress of Mathematics 2023: The ubiquity of quivers and their representations
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Persistent Homology from Viewpoints of Representation, Probability, and Application2023

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      ICIAM 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Divergent series and summation formula2023

    • Author(s)
      落合 啓之
    • Organizer
      Freshmen math seminar
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Fractional differential equations and symmetry2023

    • Author(s)
      落合 啓之
    • Organizer
      Representation theory seminar
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Ramanujan machine2023

    • Author(s)
      落合 啓之
    • Organizer
      Colloquium
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 二重旗多様体の有限個の軌道分解の組み合わせ論的な記述にみる 代数群と箙の交錯2023

    • Author(s)
      落合 啓之
    • Organizer
      2023 大分宮崎整数論研究集会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Exact Convergence Rate of Alternating Projections2023

    • Author(s)
      落合 啓之
    • Organizer
      ICIAM 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Rigorous solution-enclosures of elliptic boundary2023

    • Author(s)
      落合 啓之
    • Organizer
      ICIAM 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Exact Convergent Rate of Alternating projection2023

    • Author(s)
      落合 啓之
    • Organizer
      Zeta Functions in OKINAWA 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Interleaving Distance for Sheaves and Symplectic Geometry2023

    • Author(s)
      Yuichi Ike
    • Organizer
      USTC-IGP Geometry & Topology seminar
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] パーシステントホモロジーと機械学習2023

    • Author(s)
      池祐一
    • Organizer
      ipi-ダイキン シンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Sheaf quantization for the completion of the space of Lagrangians2023

    • Author(s)
      Yuichi Ike
    • Organizer
      Various problems in microlocal analysis and asymptotic analysis
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 層のインターリービング距離とシンプレクティック幾何学におけるエネルギー2023

    • Author(s)
      池祐一
    • Organizer
      九大幾何学・トポロジー合同セミナー
    • Related Report
      2023 Annual Research Report
  • [Presentation] 超局所層理論とシンプレクティック幾何学2023

    • Author(s)
      池祐一
    • Organizer
      杉本代数セミナー
    • Related Report
      2023 Annual Research Report
  • [Presentation] 位相的データ解析に基づく損失関数とその最適化について2023

    • Author(s)
      池祐一
    • Organizer
      日本応用数理学会連続最適化研究部会第2回研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] The completion of the space of Lagrangians and sheaves2023

    • Author(s)
      Yuichi Ike
    • Organizer
      USC Topology Seminar
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The completion of the space of Lagrangians and sheaves2023

    • Author(s)
      Yuichi Ike
    • Organizer
      UCLA Topology Seminar
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Persistent Homology and Machine Learning2023

    • Author(s)
      Yuichi Ike
    • Organizer
      WORKSHOP on Mathematics for Industry
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 位相的データ解析とその応用2023

    • Author(s)
      池祐一
    • Organizer
      統計数学×情報×物質セミナー
    • Related Report
      2023 Annual Research Report
  • [Presentation] On the connectedness locus for the complex Henon family2023

    • Author(s)
      石井豊
    • Organizer
      Dynamics of the Henon maps: real, complex and beyond
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Is M disconnected?2023

    • Author(s)
      石井豊
    • Organizer
      Around the Mandelbrot set: A conference celebrating the 60th birthday of Mitsuhiro Shishikura
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Visualization in 4D spaces with virtual reality2023

    • Author(s)
      Yutaka Ishii
    • Organizer
      Colloquium talk
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Is M disconnected?2023

    • Author(s)
      Yutaka Ishii
    • Organizer
      葉層構造シンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Girth, magnitude homology, and phase transition of diagonality2022

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      Conference on Applied, Combinatorial and Toric Topology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Is the persistence diagram really a stable data descriptor?2022

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      Computational Persistence 2022
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Is the persistence diagram really a stable data descriptor?2022

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      International Conference on "Topology and its Applications to Engineering and Life Science"
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Book] 朝倉数学ライブラリー SL(2,R)の表現論2024

    • Author(s)
      落合啓之
    • Total Pages
      176
    • Publisher
      朝倉書店
    • Related Report
      2024 Annual Research Report
  • [Book] 数理科学 No.720 パーシステントホモロジーと機械学習2023

    • Author(s)
      池祐一
    • Publisher
      サイエンス社
    • Related Report
      2023 Annual Research Report
  • [Book] 位相的データ解析から構造発見へ : パーシステントホモロジーを中心に2023

    • Author(s)
      池 祐一、E.G. エスカラ、大林 一平、鍛冶 静雄
    • Total Pages
      272
    • Publisher
      サイエンス社
    • ISBN
      9784781915807
    • Related Report
      2023 Annual Research Report

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Published: 2022-06-20   Modified: 2026-07-08  

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