International Symposium on Recent Advances in Theories and Methodologies

for Large Complex Data

Supported by
Grant-in-Aid for Scientific Research (A) 20H00576
"Innovative developments of theories and methodologies for large complex data"
(Principal Investigator: Makoto Aoshima)

Grant-in-Aid for Challenging Research (Exploratory) 22K19769
"Developments of statistical compression technology for massive data having tensor structures"
(Principal Investigator: Makoto Aoshima)


Date: December 7-9, 2023
Venue: Conference Room 101, Tsukuba International Congress Center
2-20-3 Takezono, Tsukuba, Ibaraki 305-0032, Japan (Hybrid Symposium with Zoom)
Contents & Purposes: Please look at THIS PAGE for further details.
Access: Please see THIS PAGE.
Dinner: December 8, 7:00pm-
Kisai Kagari (URL: https://kagari.owst.jp/en/)

Program Schedule (PDF)/ Flyer (PDF)

* denotes speakers who will present in person
*(Zoom) denotes speakers who will present online via Zoom (not in person)

December 7

1:50-2:00pm Opening

Time (UTC+9) Title and Speaker (Affiliation)
2:00-2:40pm Asymptotic properties of kernel k-means for high dimensional data    [Abstract]
   Kento Egashira*,a, Kazuyoshi Yatab and Makoto Aoshimab
  a(Department of Information Sciences, Tokyo University of Science)
  b(Institute of Mathematics, University of Tsukuba)
2:50-3:30pm Broken-stick components retention rule for equi-correlated normal population    [Abstract]
  Yohji Akama
  (Mathematical Institute, Tohoku University)
3:40-4:20pm Forecasting high-dimensional covariance matrices using high-dimensional principal component analysis    [Abstract]
  Takayuki Morimoto
  (School of Science, Kwansei Gakuin University)
4:30-5:10pm A geometric algorithm for contrastive principal component analysis in high dimension    [Abstract]
  Shao-Hsuan Wang
  (Graduate Institute of Statistics, National Central University)
5:20-6:00pm
(Zoom)
Feature learning via mean field neural networks and anisotropic features    [Abstract]
  Taiji Suzuki*(Zoom),a, Denny Wub, Atsushi Nitanda c and Kazusato Okoa
  a(Department of Mathematical Informatics, The University of Tokyo / RIKEN AIP)
  b(Center for Data Science, New York University)
  c(Department of Artificial Intelligence, Kyushu Institute of Technology / RIKEN AIP)

December 8

Time (UTC+9) Title and Speaker (Affiliation)
9:00-9:40am Statistical estimation with integral-based loss functions    [Abstract]
  Akifumi Okuno
  (The Institute of Statistical Mathematics / RIKEN AIP)
9:50-10:30am Non-sparse high-dimensional statistics and its applications    [Abstract]
  Masaaki Imaizumi
  (Komaba Institute for Science, The University of Tokyo / RIKEN AIP)
10:40-11:20am Statistical challenges to dimensionality in astronomical big data    [Abstract]
  Tsutomu T. Takeuchi
  (Division of Particle and Astrophysical Science, Nagoya University)
11:30am-12:10pm Predictive density estimation for two ordered normal means under α-divergence loss    [Abstract]
  Yuan-Tsung Chang*,a, Nobuo Shinozakib and William, E. Strawdermanc
  a(Department of Social Information, Mejiro University)
  b(Faculty of Science and Technology, Keio University)
  c(Department of Statistics, Rutgers University)
12:10-1:40pm Lunch
Special Invited Session
1:40-2:30pm On the efficiency-loss free ordering-robustness of product-PCA    [Abstract]
Speaker: Hung Hung (Institute of Health Data Analytics and Statistics, National Taiwan University)
Discussion Leader: Yuan-Tsung Chang (Department of Social Information, Mejiro University)
2:40-3:30pm Learning ordinality in high-dimensional data    [Abstract]
Speaker: Jeongyoun Ahn (Department of Industrial and Systems Engineering, Korea Advanced Institute of Science and Technology)
Discussion Leader: Kazuyoshi Yata (Institute of Mathematics, University of Tsukuba)
Keynote Session
3:50-4:50pm Normal-reference test for high-dimensional covariance matrices    [Abstract]
Speaker: Jin-Ting Zhang (Department of Statistics and Data Science, National University of Singapore)
Discussion Leader: Aki Ishii (Department of Information Sciences, Tokyo University of Science)
5:00-6:00pm
(Zoom)
Testing high-dimensional general linear hypotheses through spectral shrinkage    [Abstract]
Speaker: Debashis Paul (Department of Statistics, University of California, Davis / Indian Statistical Institute, Kolkata)
Discussion Leader: Yuta Koike (Graduate School of Mathematical Sciences, The University of Tokyo)
7:00-9:00pm Dinner

December 9

Time (UTC+9) Title and Speaker (Affiliation)
9:00-9:40am On approximate sampling from non-log-concave non-smooth distributions via a Langevin-type Monte Carlo algorithm    [Abstract]
  Shogo Nakakita
  (Komaba Institute for Science, The University of Tokyo)
9:50-10:30am Two step estimations via the Dantzig selector for ergodic time series models
  Kou Fujimori*,a and Koji Tsukudab
  a(Department of Economics, Shinshu University)
  b(Faculty of Mathematics, Kyushu University)
10:40-11:20am Innovation algorithm of fractionally integrated (I(d)) process and applications on the estimation of parameters
  Junichi Hirukawa*,a and Kou Fujimorib
  a(Faculty of Science, Niigata University)
  b(Department of Economics, Shinshu University)
11:30am-12:10pm Scaling limits of Markov chains/processes in Monte Carlo methods    [Abstract]
  Kengo Kamatani
  (The Institute of Statistical Mathematics)
12:20-1:00pm On a general linear hypothesis testing problem for latent factor models in high dimensions    [Abstract]
  Takahiro Nishiyama*,a and Masashi Hyodob
  a(Department of Business Administration, Senshu University)
  b(Department of Economics, Kanagawa University)

1:00-1:10pm Closing