International Symposium on New Developments of Theories,
Methodologies and Applications for Large Complex Data
Supported by
Grant-in-Aid for Scientific Research (A) 25H01107
"Advancement and Expansion of Theories and Methodologies
for Large-Scale Complex Data"
(Principal Investigator: Makoto Aoshima)
Grant-in-Aid for Challenging Research (Exploratory) 26K23798
"Building an Innovative Platform for Real-Time Streaming Data Based on
High-Dimensional, Low-Sample-Size Theory"
(Principal Investigator: Makoto Aoshima)
| Date: | October 21-23, 2026 |
|---|---|
| Venue: | iias Hall (located in iias Tsukuba https://tsukuba.iias.jp/iiashall) 5-19 Kenkyugakuen, Tsukuba, Ibaraki 305-0817, Japan |
| Contents & Purposes: | Please look at THIS PAGE for further details. |
| Access: | Please see THIS PAGE. |
| Dinner: | October 22, 19:30- Tenryu |
Program Schedule (PDF)/ Flyer (PDF)
* denotes speakers
October 21
14:00-14:10 Opening
| Time (UTC+9) | Title and Speaker (Affiliation) | |
|---|---|---|
| Invited Session | ||
| 14:10-14:50 | Enhanced Gaussian kernel k-means for high-dimensional, low-sample-size data
[Abstract] Kento Egashira*,a, Kazuyoshi Yatab, and Makoto Aoshimab a(Department of Information Science and Technology, Tokyo University of Science) b(Institute of Mathematics, University of Tsukuba) |
|
| 15:00-15:40 |
A theory of nonparametric covariance function estimation for discretely observed data
[Abstract] Yoshikazu Terada*,a and Atsutomo Yarab a(Graduate School of Engineering Science, The University of Osaka / RIKEN AIP) b(Graduate School of Engineering Science, The University of Osaka) |
|
| 15:50-16:30 | Applications of the high-dimensional statistics to astrophysics and related fields
[Abstract] Tsutomu T. Takeuchi*,a, Yu Oganeb, Kazuyoshi Yatac, Kento Egashirad, Makoto Aoshimac, Kohji Yoshikawae, Nanase Haradaf, and Koichiro Nakanishif a(Division of Particle and Astrophysical Science, Nagoya University / The Research Center for Statistical Machine Learning, The Institute of Statistical Mathematics) b(Division of Particle and Astrophysical Science, Nagoya University) c(Institute of Mathematics, University of Tsukuba) d(Department of Information Science and Technology, Tokyo University of Science) e(Center for Computational Sciences, University of Tsukuba) f(National Astronomical Observatory of Japan) |
|
| 16:50-17:30 | A statistical framework for contrastive principal component analysis
[Abstract] Shao-Hsuan Wang (Graduate Institute of Statistics, National Central University) |
|
| 17:40-18:20 | A note on estimation of restricted (ordered, upper (lower)-bounded) scale parameter of Gamma distribution
[Abstract] Yuan-Tsung Chang*,a and Nobuo Shinozakib a(The Institute of Statistical Mathematics / Mejiro University) b(Faculty of Science and Technology, Keio University) |
|
October 22
| Time (UTC+9) | Title and Speaker (Affiliation) | |
|---|---|---|
| Young Researchers Session I | ||
| 10:40-11:50 |
|
|
| Invited Session | ||
| 12:00-12:30 | A nonparametric test of spherical symmetry applicable to high dimensional data
[Abstract] Bilol Banerjee*,a and Anil K. Ghoshb a(Department of Statistics and Data Science, National University of Singapore) b(Theoretical Statistics and Mathematics Unit, Indian Statistical Institute, Kolkata) |
|
| 12:30-14:00 | Lunch | |
| Special Invited Session | ||
| 14:00-14:50 |
High-dimensional precision matrix quadratic forms: Estimation framework for p > n
[Abstract]
Speaker: Weiming Li (School of Statistics and Data Science, Shanghai University of Finance and Economics) Discussion Leader: Kento Egashira (Department of Information Science and Technology, Tokyo University of Science) |
|
| 15:05-15:55 |
Joint estimation of high-dimensional spiked covariance matrices
via a partially shared subspace
[Abstract]
Speaker: Sungkyu Jung (Department of Statistics and Institute for Data Innovation in Science, Seoul National University) Joint work with: Changwon Yoona, Minwoo Kimb, and Jeongyoun Ahna a(Department of Industrial and Systems Engineering, KAIST) b(Department of Statistics, Seoul National University) Discussion Leader: Kazuyoshi Yata (Institute of Mathematics, University of Tsukuba) | |
| 16:10-17:00 | From high-dimensional classification to clustering:
High-impact feature selection via ggCGA and UL-MLR
[Abstract]
Speaker: Shih-Feng Huang (Graduate Institute of Statistics, National Central University) Discussion Leader: Yuan-Tsung Chang (The Institute of Statistical Mathematics / Mejiro University) |
|
| Keynote Session | ||
| 17:15-18:15 | Approaching the frontier in large risky-asset universes: Direct portfolio estimation via CORE
[Abstract]
Speaker: Xinghua Zheng (Department of ISOM, Hong Kong University of Science and Technology) Discussion Leader: Shogo Nakakita (Graduate School of Engineering Science, The University of Osaka) |
|
| 19:30- | Dinner | |
October 23
| Time (UTC+9) | Title and Speaker (Affiliation) | |
|---|---|---|
| Young Researchers Session II | ||
| 10:40-11:50 |
|
|
| Invited Session | ||
| 12:00-12:40 | Generalization error analysis for linear binary classification
under Lipschitz loss functions Shogo Nakakita (Graduate School of Engineering Science, The University of Osaka) |
|
| 12:40-14:10 | Lunch | |
| 14:10-14:50 | Asymptotically normal estimators in high-dimensional linear regression Koji Tsukuda*,a and Kou Fujimorib a(Faculty of Mathematics, Kyushu University) b(Faculty of Economics and Law, Shinshu University) |
|
| 15:00-15:40 | Testing homogeneity of high-dimensional covariance matrices
under a low-dimensional factor structure
[Abstract] Takahiro Nishiyama*,a, Masashi Hyodob, Shoma Yamashitac, and Nobumichi Shutohd a(Faculty of Science, Tokyo University of Science) b(Faculty of Economics, Kanagawa University) c(Graduate School of Science, Kobe University) d(Laboratory of Medical Data Sciences, Kobe Pharmaceutical University / Graduate School of Science, Kobe University) |
|
15:40-15:45 Closing