International conferences / Invited Talks

August 2019

Regularized L-BFGS Method for Large Scale Unconstrained Optimization
6th International Conference on Continuous Optimization (ICCOPT)
Location: Berlin, Germany

August 2023

A Stochastic Variance Reduced Gradient Using Second Order Information
10th International Congress on Industrial and Applied Mathematics (ICIAM)
Location: Waseda University, Tokyo, Japan

January 2025

Nys-Fed: Communication and Memory Efficient Nyström Approximated Curvature for Federated Learning
Invited talk, Indian Institute of Technology, Mandi, India
Location: Mandi, Himachal Pradesh, India

Domestic Conferences / Poster Presentations

February 2024

Reducing Variance of Stochastic Gradient using Barzilai-Borwein method as second-order information
20th Joint Research Meeting of the Japan Society for Industrial and Applied Mathematics (JSIAM)
Location: Nagaoka Institute of Technology, Niigata, Japan

December 2022

Nys-LMN: Nyström Levenberg-Marquardt-type Newton
International Workshop on Continuous Optimization
Format: Online

December 2022

Nys-Newton: Nyström Approximated Curvature Information for Convex Optimization
Information-Based Induction Sciences and Machine Learning (IBISML)
Format: Online

July 2022

Nys-Transfer: Nyström Approximated Newton-Sketch for Fine-Tuning the Deep Nets for Brain MRI
International Symposium on Artificial Intelligence & Brain Science, Okinawa Institute of Science & Technology (OIST)
Location: Okinawa, Japan

February 2022

Damped Nystrom Approximated Curvature via Levenberg–Marquardt method for Stochastic Optimization
第16回ICTイノベーション/16th ICT Innovation, Kyoto University
Location: Kyoto, Japan

February 2020

An Accelerated Stochastic Variance Reduced Gradient Method
第14回ICTイノベーション/14th ICT Innovation, Kyoto University
Location: Kyoto, Japan