IEICE Trans

Hirotaka HACHIYA

Computationally Efficient Multi-Label Classification by Least-Squares Probabilistic Classifiers Hyunha NAM Hirotaka HACHIYA Masashi SUGIYAMA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2013/08/01 Vol. E96-D No. 8 pp. 1871-1874 Type of Manuscript: LETTER Category: Fundamentals of Information Systems Keyword: multi-label classification, least-squares probabilistic classifier,
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Feature Selection via ₁-Penalized Squared-Loss Mutual Information Wittawat JITKRITTUM Hirotaka HACHIYA Masashi SUGIYAMA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2013/07/01 Vol. E96-D No. 7 pp. 1513-1524 Type of Manuscript: PAPER Category: Pattern Recognition Keyword: feature selection, ₁-regularization, squared-loss mutual information, density-ratio estimation, dimensionality reduction,
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Artist Agent: A Reinforcement Learning Approach to Automatic Stroke Generation in Oriental Ink Painting Ning XIE Hirotaka HACHIYA Masashi SUGIYAMA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2013/05/01 Vol. E96-D No. 5 pp. 1134-1144 Type of Manuscript: PAPER Category: Artificial Intelligence, Data Mining Keyword: painterly rendering, stroke-based rendering, reinforcement learning, policy gradient,
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Multi-Task Approach to Reinforcement Learning for Factored-State Markov Decision Problems Jaak SIMM Masashi SUGIYAMA Hirotaka HACHIYA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2012/10/01 Vol. E95-D No. 10 pp. 2426-2437 Type of Manuscript: PAPER Category: Artificial Intelligence, Data Mining Keyword: reinforcement learning, multi-task learning, transfer learning, factored state models, Markov decision process,
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Least Absolute Policy Iteration--A Robust Approach to Value Function Approximation Masashi SUGIYAMA Hirotaka HACHIYA Hisashi KASHIMA Tetsuro MORIMURA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2010/09/01 Vol. E93-D No. 9 pp. 2555-2565 Type of Manuscript: PAPER Category: Artificial Intelligence, Data Mining Keyword: reinforcement learning, value function approximation, least-squares policy iteration, outlier, ₁-loss function, linear programming,
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Least-Squares Conditional Density Estimation Masashi SUGIYAMA Ichiro TAKEUCHI Taiji SUZUKI Takafumi KANAMORI Hirotaka HACHIYA Daisuke OKANOHARA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2010/03/01 Vol. E93-D No. 3 pp. 583-594 Type of Manuscript: PAPER Category: Pattern Recognition Keyword: conditional density estimation, multimodality, heteroscedastic noise, direct density ratio estimation, transition estimation,
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