Hiroyuki KASAI

J-GLOBAL         Last updated: Dec 5, 2018 at 05:27
 
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Name
Hiroyuki KASAI
URL
http://kasai.kasailab.com
Affiliation
The University of Electro-Communications
Section
Graduate School of Informatics and Engineering, School of Informatics and Engineering, Department of Computer and Network Engineering, Cluster II (Emerging Multi-interdisciplinary Engineering)
Job title
Associate Professor
Degree
Doctor of Engineering(Waseda University)
Research funding number
40312079

Research Areas

 
 

Academic & Professional Experience

 
Oct 1998
 - 
Mar 2002
Associate Researcher, Waseda University Global Intenational Telecommunication Institute
 
Jul 2000
 - 
Sep 2001
Visiting Researcher, U.K. British Telecom BTexact Technologies
 
May 2002
 - 
Mar 2007
Researcher, NTT DoCoMo Inc.
 
Jun 2010
 - 
Jan 2012
Director, Gnzo Inc.
 
Apr 2011
 - 
Feb 2013
Senior Policy Researcher at Council for Science, Technology and Innovation Policy (CSTP), Cabinet Office of Japan
 

Education

 
Apr 1996
 - 
Mar 1998
Electronics and Communication, Graduate School, Division of Science and Engineering, Waseda University
 
Apr 1998
 - 
Mar 2000
Electronics and Communication, Graduate School, Division of Science and Engineering, Waseda University
 

Awards & Honors

 
Aug 2016
電子情報通信学会 モバイルネットワークと アプリケーション 研究会 (MoNA) 年間最優秀発表賞, 電子情報通信学会 モバイルネットワークと アプリケーション 研究会 (MoNA)
 
Mar 2015
電気通信普及財団賞 テレコムシステム技術賞, The Telecommunications Advancement Foundation
 
Jan 2011
US, IEEE ICCE (International Conference on Consumer Electronics) Best Paper Award (Storage Technology Category), IEEE Consumer Electronics Society
 
Sep 2010
IEICE Service Recognution Award, IEICE Communication Society
 
Jul 2003
Yamashita Memorial Award, 2003, Information Processing Society of Japan (IPSJ),
 

Published Papers

 
Hiroyuki Sato, Hiroyuki Kasai
システム制御情報学会学会誌「システム/制御/情報」   62(1) 21-27   Jan 2018   [Refereed][Invited]
Inexact trust-region algorithm on Riemannian manifolds
Hiroyuki Kasai, Bamdev Mishra
32nd Conference on Neural Information Processing Systems (NIPS2018)   Accepted    Dec 2018   [Refereed]
Hiroyuki Kasai, Hiroyuki Sato, Bamdev Mishra
35th International Conference on Machine Learning (ICML2018)   PMLR 80 2516-2524   Jul 2018   [Refereed]
Hiroyuki Kasai, Bamdev Mishra
33rd International Conference on Machine Learning (ICML2016)   PMLR 48 1012-1021   Jun 2016   [Refereed]
We propose a novel Riemannian manifold preconditioning approach for the tensor completion problem with rank constraint. A novel Riemannian metric or inner product is proposed that exploits the least-squares structure of the cost function and takes...
Hiroyuki Kasai, Hiroyuki Sato, Bamdev Mishra
21st International Conference on Artificial Intelligence and Statistics (AISTATS2018)   PMLR 84 269-278   Apr 2018   [Refereed]
Stochastic variance reduction algorithms have recently become popular for minimizing the average of a large, but finite number of loss functions. The present paper proposes a Riemannian stochastic quasi-Newton algorithm with variance reduction (R-...

Conference Activities & Talks

 
Tensor learning on preconditioned Tucker manifold and application to tensor regression of spatiotemporal forecasting problem
Hiroyuki KASAI, Bamdev MISHRA
IEICE Technical Report MoNA2017-56   19 Jan 2018   
A study on stochastic variance reduced multiplicative update for nonnegative matrix factorization
Hiroyuki Kasai
電子情報通信学会 ニューロコンピューティング研究会(NC)信学技報(NC2017-31)   24 Nov 2017   
Joint dimensionality reduction and dictionary learning on symmetric positive definite matrices
Hiroyuki Kasai
情報処理学会オーディオビジュアル複合情報処理研究会(AVM)   13 Oct 2017   
Riemannian gossip algorithms for decentralized matrix completion
Bamdev MISHRA, Hiroyuki KASAI
IEICE Society Conference   20 Sep 2016   
Stochastic low-rank tensor completion: a Riemannian manifold preconditioning approach
Hiroyuki KASAI, Bamdev MISHRA
IEICE Society Conference   20 Sep 2016   

Teaching Experience

 

Research Grants & Projects

 
実空間ナレッジが求められる時代の新たなデータ重要度による通信制御
Project Year: Apr 2017 - Mar 2020
高次元大規模信号デ ータ処理のためのス ケーラブル・リーマン 多様体最適化とその 応用
Project Year: Apr 2016 - Mar 2019    Investigator(s): Hiroyuki KASAI
超多数ユーザへの同 時提供のための高効 率高機能映像符号結 合方式とメディア間 連携方式
Project Year: Apr 2013 - Mar 2016    Investigator(s): Hiroyuki KASAI
マイクロナレッジと そのアプリケーショ ンの研究開発
Ministry of Internal Affairs and Communications: Strategic Information and Communications R&D Promotion Programme
Project Year: 2015 - 2016    Investigator(s): Ryoichi SHINKUMA
インタラクティブマルチビジョン映像提供のための圧縮符号結合方式とメディア間連携方式
The Okawa Foundation: 研究助成
Project Year: 2014 - 2014    Investigator(s): Hiroyuki KASAI

Patents

 
2009-016233 : 通信端末、コンテンツ再生方法,プログラム,コンテンツ再生システム及びサーバ
WO 2015020069 : DATA PROCESSING DEVICE, DATA PROCESSING METHOD, PROGRAM, RECORDING MEDIUM, AND DATA PROCESSING SYSTEM
US20120147954A1 : TRANSMITTING APPARATUS, RECEIVING APPARATUS, TRANSMITTING METHOD, RECEIVING METHOD AND TRANSPORT SYSTEM
EP02456201A1,EP02456201A1 : TRANSMITTING APPARATUS, RECEIVING APPARATUS, TRANSMITTING METHOD, RECEIVING METHOD AND TRANSPORT SYSTEM
WO12039404A1 : VIDEO BIT STREAM TRANSMISSION SYSTEM