Hiroki Yanagisawa

Email: yanagisawa_hirokicyberagent.co.jp

Professional Experience

• 2024- AI Lab in Cyberagent, Inc.
• 2003-2023 IBM Research - Tokyo
• 2001 NTT (Summer internship)

Academic History

• 2006-2007 Kyoto University (PhD)
• 2001-2003 Kyoto University (Master)
• 1997-2001 Kyoto University (Bachelor)

Journal Papers (referred)

• Subhrajit Roy, Isabell Kiral, Mahtab Mirmomeni, Todd Mummert, Alan Braz, Jason Tsay, Jianbin Tang, Umar Asif, Thomas Schaffter, Mehmet Eren Ahsen, Toshiya Iwamori, Hiroki Yanagisawa, Hasan Poonawala, Piyush Madan, Yong Qin, Joseph Picone, Iyad Obeid, Bruno De Assis Marques, Stefan Maetschke, Rania Khalaf, Michal Rosen-Zvi, Gustavo Stolovitzky, Stefan Harrer, IBM Epilepsy Consortium: Evaluation of artificial intelligence systems for assisting neurologists with fast and accurate annotations of scalp electroencephalography data, EBioMedicine, 66:103275, 2021
• Hiroki Yanagisawa and Satoshi Hara: Discounted average degree density metric and new algorithms for the densest subgraph problem, Networks, 71(1): 3--15, 2018
• Kazuo Iwama, Shuichi Miyazaki, and Hiroki Yanagisawa: A 25/17-Approximation Algorithm for the Stable Marriage Problem with One-Sided Ties, Algorithmica, 68(3), 758--775., 2014
• Kazuo Iwama, Shuichi Miyazaki, and Hiroki Yanagisawa: Improved approximation bounds for the Student-Project Allocation problem with preferences over projects, Journal of Discrete Algorithms, 13, 59--66, 2012
• Kazuo Iwama, Shuichi Miyazaki, and Hiroki Yanagisawa: Approximation algorithms for the sex-equal stable marriage problem, ACM Transactions on Algorithms, 7(1), 2:1--17, 2010
• Hiroki Yanagisawa: The Material Allocation Problem in the Steel Industry, IBM Journal of Research and Development, 51(3/4), 363--374, 2007
• Magnus M. Halldorsson, Kazuo Iwama, Shuichi Miyazaki, and Hiroki Yanagisawa: Improved approximation results for the stable marriage problem, ACM Transactions on Algorithms, 3(3), 30, 2007
• Magnus M. Halldorsson, Kazuo Iwama, Shuichi Miyazaki, and Hiroki Yanagisawa: Randomized approximation of the stable marriage problem, Theoretical Computer Science, 325(3), 439--465, 2004

Conference Papers (referred)

• Hiroki Yanagisawa, Proper Scoring Rules for Survival Analysis, ICML 2023.
• Hiroki Yanagisawa, Kohei Miyaguchi, and Takayuki Katsuki, Hierarchical Lattice Layer for Partially Monotone Neural Networks, NeurIPS 2022
• Akira Koseki, Italo Buleje, Prithwish Chakraborty, Elif Eyigoz, Mohamed Ghalwash, Takashi Itoh, Toshiya Iwamori, Michiharu Kudoh, Pablo Meyer Rojas, Kenney Ng, Parthasarathy Suryanarayanan, Hiroki Yanagisawa, Jianying Hu: DPM360: New Additions to Advanced Disease Progression Modeling, OHDSI Collaborator Showcase 2022
• Mohamed Ghalwash, Prithwish Chakraborty, Akira Koseki, Hiroki Yanagisawa, Toshiya Iwamori, Reitaro Tokumasu, Masaki Makino, Ryosuke Yanagiya, Atsushi Suzuki, Michiharu Kudo, Daby Sow, A comparative time-to-event analysis across health systems, AMIA Annual Symposium 2021
• Akira Koseki, Reitaro Tokumasu, Prithwish Chakraborty, Mohamed Ghalwash, Toshiya Iwamori, Michiharu Kudo, Daby Sow, Hiroki Yanagisawa, Ryosuke Yanagiya, Masaki Makino, Atsushi Suzuki: Survival Models of Diabetes Complications Applied to Different Cohorts, ADA 2021.
• Koki Hamada, Shuichi Miyazaki, and Hiroki Yanagisawa: Strategy-Proof Approximation Algorithms for the Stable Marriage Problem with Ties and Incomplete Lists, ISAAC 2019, 9:1--9:14.
• Satoshi Hara, Takayuki Katsuki, Hiroki Yanagisawa, Takafumi Ono, Ryo Okamoto, Shigeki Takeuchi: Consistent and Efficient Nonparametric Different-Feature Selection, AISTATS 2017, 130--138.
• Satoshi Hara, Tetsuro Morimura, Toshihiro Takahashi, Hiroki Yanagisawa, Taiji Suzuki: A Consistent Method for Graph Based Anomaly Localization, AISTATS 2015.
• Chien-Chung Huang, Kazuo Iwama, Shuichi Miyazaki, Hiroki Yanagisawa: A Tight Approximation Bound for the Stable Marriage Problem with Restricted Ties, APPROX 2015, 361--380.
• Fumiko Satoh, Hiroki Yanagisawa, Hitomi Takahashi, Takayuki Kushida: Total Energy Management System for Cloud Computing, IC2E 2013, 233--240.
• Hiroki Yanagisawa, Takayuki Osogami: Improved Integer Programming Approaches for Chance-Constrained Stochastic Programming, IJCAI 2013, 2938--2944.
• Hiroki Yanagisawa, Takayuki Osogami, Rudy Raymond: Dependable virtual machine allocation, INFOCOM 2013, 629--637.
• Daisuke Takuma, Hiroki Yanagisawa: Faster upper bounding of intersection sizes, SIGIR 2013, 703--712.
• Kazuo Iwama, Shuichi Miyazaki, Hiroki Yanagisawa: Improved Approximation Bounds for the Student-Project Allocation Problem with Preferences over Projects, TAMC 2011, 440--451.
• Kazuo Iwama, Shuichi Miyazaki, Hiroki Yanagisawa: A 25/17-Approximation Algorithm for the Stable Marriage Problem with One-Sided Ties, ESA 2010, 135--146.
• Hiroki Yanagisawa: An Offline Map Matching via Integer Programming, ICPR 2010, 4206--4209.
• Hiroki Yanagisawa: A multi-source label-correcting algorithm for the all-pairs shortest paths problem, IPDPS 2010, 1--10.
• Kazuo Iwama, Shuichi Miyazaki, Hiroki Yanagisawa: Approximation Algorithms for the Sex-Equal Stable Marriage Problem, WADS 2007, 201--213.
• Magnu M. Halldorsson, Kazuo Iwama, Shuichi Miyazaki, Hiroki Yanagisawa: Randomized Approximation of the Stable Marriage Problem, COCOON 2003, 339--350.
• Magnu M. Halldorsson, Kazuo Iwama, Shuichi Miyazaki, Hiroki Yanagisawa: Improved Approximation of the Stable Marriage Problem, ESA 2003, 266--277.

Book Chapter

• Kenney Ng, Mohamed Ghalwash, Prithwish Chakraborty, Daby M Sow, Akira Koseki, Hiroki Yanagisawa, Michiharu Kudo: Data-Driven Disease Progression Modeling, Healthcare Information Management Systems: Cases, Strategies, and Solutions, Springer, 247–276, 2022.
• Hiroki Yanagisawa: Stable Marriage with One-Sided Ties, Encyclopedia of Algorithms, Springer, 2068–2071, 2016.

Thesis

• Hiroki Yanagisawa: Approximation algorithms for stable marriage problems, Ph.D. Thesis, Kyoto University, 2007
• Hiroki Yanagisawa: Approximation algorithms for stable marriage problems, Master Thesis, Kyoto University, 2003