ABCI 3.0: Evolution of the leading AI infrastructure in Japan. - Takano, Ryousei; Takizawa, Shin'ichiro; Tanimura, Yusuke; Nakada, Hidemoto; Ogawa, Hirotaka (CoRR, 2024)

Performance portable back-projection algorithms on CPUs: agnostic data locality and vectorization optimizations. - Chen, Peng; Wahib, Mohamed; Wang, Xiao; Takizawa, Shin'ichiro; Hirofuchi, Takahiro; Ogawa, Hirotaka; Matsuoka, Satoshi (2021)

Scalable FBP decomposition for cone-beam CT reconstruction. - Chen, Peng; Wahib, Mohamed; Wang, Xiao; Hirofuchi, Takahiro; Ogawa, Hirotaka; Biguri, Ander; Boardman, Richard P.; Blumensath, Thomas; Matsuoka, Satoshi (2021)

Performance Portable Back-projection Algorithms on CPUs: Agnostic Data Locality and Vectorization Optimizations. - Chen, Peng; Wahib, Mohamed; Wang, Xiao; Takizawa, Shin'ichiro; Hirofuchi, Takahiro; Ogawa, Hirotaka; Matsuoka, Satoshi (CoRR, 2021)

Building and Evaluation of Cloud Storage and Datasets Services on AI and HPC Converged Infrastructure. - Tanimura, Yusuke; Takizawa, Shin'ichiro; Ogawa, Hirotaka; Hamanishi, Takahiro (2020)

Spatial Footprints of Human Perceptual Experience in Geo-Social Media. - Lee, Jun; Ogawa, Hirotaka; Kwon, Yongjin; Kim, Kyoung-Sook (ISPRS Int. J. Geo Inf., 2018)

Understanding and improving disk-based intermediate data caching in Spark. - Zhang, Kaihui; Tanimura, Yusuke; Nakada, Hidemoto; Ogawa, Hirotaka (2017)

Stinuum: A Holistic Visual Analysis of Moving Objects with Open Source Software. - Kim, Kyoung-Sook; Kim, Dongmin; Jeong, Hyemi; Ogawa, Hirotaka (2017)

Optimal KD-Partitioning for the Local Outlier Detection in Geo-Social Points. - Kumrai, Teerawat; Kim, Kyoung-Sook; Dong, Mianxiong; Ogawa, Hirotaka (2017)

MixedWalk: Explore Ahead before Stepping in Mobile Augmented Reality Services. - Lee, Jun; Kim, Kyoung-Sook; Ogawa, Hirotaka; Kwon, Yongjin (2017)

Understanding human perceptual experience in unstructured data on the web. - Lee, Jun; Kim, Kyoung-Sook; Kwon, Yongjin; Ogawa, Hirotaka (2017)

Discovery of local topics by using latent spatio-temporal relationships in geo-social media. - Kim, Kyoung-Sook; Kojima, Isao; Ogawa, Hirotaka (Int. J. Geogr. Inf. Sci., 2016)

I/O chunking and latency hiding approach for out-of-core sorting acceleration using GPU and flash NVM. - Sato, Hitoshi; Mizote, Ryo; Matsuoka, Satoshi; Ogawa, Hirotaka (2016)

Performance Prediction of Memory Access Intensive Apps with Delay Insertion: A Vision. - Akiyama, Soramichi; Hirofuchi, Takahiro; Ogawa, Hirotaka (2016)

Optimising Coverage, Freshness and Diversity in Live Exploration-based Linked Data Queries. - Lynden, Steven J.; Yui, Makoto; Matono, Akiyoshi; Nakamura, Akihito; Ogawa, Hirotaka; Kojima, Isao (2016)

Improvement of Join Algorithms for Low-Selectivity Joins on MapReduce. - Matono, Akiyoshi; Ogawa, Hirotaka; Kojima, Isao (2015)

RALFIE: a life-logging system for reducing potential radiation exposures. - Kim, Kyoung-Sook; Kojima, Isao; Suzuki, Ryoichi; Naito, Wataru; Ogawa, Hirotaka (2015)

RendezView: Look at Meanings of an Encounter Region over Local Social Flocks. - Kim, Kyoung-Sook; Bica, Melissa; Kojima, Isao; Ogawa, Hirotaka (2015)

Sophy: a morphological framework for structuring geo-referenced social media. - Kim, Kyoung-Sook; Ogawa, Hirotaka; Nakamura, Akihito; Kojima, Isao (2014)

Stream processing with BigData: SSS-MapReduce. - Nakada, Hidemoto; Ogawa, Hirotaka; Kudoh, Tomohiro (2012)

Poster: SSS: a mapreduce framework based on distributed key-value store. - Nakada, Hidemoto; Ogawa, Hirotaka; Kudoh, Tomohiro (2011)

SSS: An Implementation of Key-Value Store Based MapReduce Framework. - Ogawa, Hirotaka; Nakada, Hidemoto; Takano, Ryousei; Kudoh, Tomohiro (2010)

Eliminating Datacenter Idle Power with Dynamic and Intelligent VM Relocation. - Hirofuchi, Takahiro; Nakada, Hidemoto; Ogawa, Hirotaka; Itoh, Satoshi; Sekiguchi, Satoshi (2010)

A Live Storage Migration Mechanism over WAN for Relocatable Virtual Machine Services on Clouds. - Hirofuchi, Takahiro; Ogawa, Hirotaka; Nakada, Hidemoto; Itoh, Satoshi; Sekiguchi, Satoshi (2009)

A live storage migration mechanism over wan and its performance evaluation. - Hirofuchi, Takahiro; Nakada, Hidemoto; Ogawa, Hirotaka; Itoh, Satoshi; Sekiguchi, Satoshi (2009)

Toward Virtual Machine Packing Optimization Based on Genetic Algorithm. - Nakada, Hidemoto; Hirofuchi, Takahiro; Ogawa, Hirotaka; Itoh, Satoshi (2009)

A Multi-Site Virtual Cluster System for Wide Area Networks. - Hirofuchi, Takahiro; Yokoi, Takeshi; Ebara, Tadashi; Tanimura, Yusuke; Ogawa, Hirotaka; Nakada, Hidetomo; Tanaka, Yoshio; Sekiguchi, Satoshi (2008)

GridASP: an ASP framework for Grid utility computing. - Ogawa, Hirotaka; Itoh, Satoshi; Sonoda, Tetsuya; Sekiguchi, Satoshi (Concurr. Comput. Pract. Exp., 2007)

The Second Trans-Pacific Grid Datafarm Testbed and Experiments for SC2003. - Tatebe, Osamu; Ogawa, Hirotaka; Kodama, Yuetsu; Kudoh, Tomohiro; Sekiguchi, Satoshi; Matsuoka, Satoshi; Aida, Kento; Boku, Taisuke; Sato, Mitsuhisa; Morita, Youhei; Kitatsuji, Yoshinori; Williams, Jim; et al. (2004)

Autonomous Con.guration of Grid Monitoring Systems. - Shirose, Ken'ichiro; Matsuoka, Satoshi; Nakada, Hidemoto; Ogawa, Hirotaka (2004)

OpenJIT: An Open-Ended, Reflective JIT Compiler Framework for Java. - Ogawa, Hirotaka; Shimura, Kouya; Matsuoka, Satoshi; Maruyama, Fuyuhiko; Sohda, Yukihiko; Kimura, Yasunori (2000)

OpenJIT Frontend System: An Implementation of the Reflective JIT Compiler Frontend. - Ogawa, Hirotaka; Matsuoka, Satoshi; Maruyama, Fuyuhiko; Sohda, Yukihiko; Shimura, Kouya; Kimura, Yasunori (1999)

OMPC++ - A Portable High-Performance Implementation of DSM using OpenC++ Reflection. - Sohda, Yukihiko; Ogawa, Hirotaka; Matsuoka, Satoshi (1999)

Towards a Parallel C++ Programming Language Based on Commodity Object-Oriented Technologies. - Matsuoka, Satoshi; Nikami, A.; Ogawa, Hirotaka; Ishikawa, Yutaka (1997)

Multi-client LAN/WAN Performance Analysis of Ninf: a High-Performance Global Computing System. - Takefusa, Atsuko; Matsuoka, Satoshi; Ogawa, Hirotaka; Nakada, Hidemoto; Takagi, Hiromitsu; Sato, Mitsuhisa; Sekiguchi, Satoshi; Nagashima, Umpei (1997)

OMPI: Optimizing MPI Programs using Partial Evaluation. - Ogawa, Hirotaka; Matsuoka, Satoshi (1996)