Kohei HATANO


Online Linear Optimization with the Log-Determinant Regularizer
Ken-ichiro MORIDOMI Kohei HATANO Eiji TAKIMOTO 
Publication:   
Publication Date: 2018/06/01
Vol. E101-D  No. 6  pp. 1511-1520
Type of Manuscript:  PAPER
Category: Fundamentals of Information Systems
Keyword: 
online matrix predictionlog-determinantonline collaborative filtering
 Summary | Full Text:PDF(402KB)

Efficient Reformulation of 1-Norm Ranking SVM
Daiki SUEHIRO Kohei HATANO Eiji TAKIMOTO 
Publication:   
Publication Date: 2018/03/01
Vol. E101-D  No. 3  pp. 719-729
Type of Manuscript:  PAPER
Category: Artificial Intelligence, Data Mining
Keyword: 
bipartite rankingAUCRanking SVMs
 Summary | Full Text:PDF(492.1KB)

Efficient Sampling Method for Monte Carlo Tree Search Problem
Kazuki TERAOKA Kohei HATANO Eiji TAKIMOTO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2014/03/01
Vol. E97-D  No. 3  pp. 392-398
Type of Manuscript:  Special Section PAPER (Special Section on Foundations of Computer Science —New Trends in Theory of Computation and Algorithm—)
Category: Computational Learning Theory, Game
Keyword: 
Monte Carlo tree searchrandom samplinggameUCT
 Summary | Full Text:PDF(453.5KB)

Adaptive Online Prediction Using Weighted Windows
Shin-ichi YOSHIDA Kohei HATANO Eiji TAKIMOTO Masayuki TAKEDA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2011/10/01
Vol. E94-D  No. 10  pp. 1917-1923
Type of Manuscript:  Special Section PAPER (Special Section on Information-Based Induction Sciences and Machine Learning)
Category: 
Keyword: 
machine learningdata streamonline learningsliding window
 Summary | Full Text:PDF(526.6KB)