Recent activities (2021 or later)
- Tsuyoshi Ozawa, Ryoji Kawamichi, Yuto Hayamizu, Kazuo Goda, Masaru Kitsuregawa, “Early experience of Utilizing Persistent Memory for Database Bulk Loading”, USENIX FAST ‘22 Work-in-Progress reports, Feb. 2022 [website.]
- Tsuyoshi Ozawa, Yuto Hayamizu, Kazuo Goda, Masaru Kitsuregawa, “Thread-specific Database Buffer Management in Multi-core NVM Storage Environments”, The 12th Non-Volatile Memories Workshop (NVMW'21) Poster session, Mar. 2021 [extended asbt.]
Past activities (2020 or earlier)
Journals
- Tsuyoshi Ozawa, Makoto Onizuka, Yoshifumi Fukumoto, Satoshi Moriai, “MapReduce optimization using mapper-side aggregation”, IPSJ Journal:Advanced Computer Systems, Vol.43, Oct. 2013
- Mitsuhiro Mabuchi, Shingo Takada, Tsuyoshi Ozawa, Hiraku Toyooka, Keigo Matsui, Akira Sato, Yasushi Shinjo, Kazuhiko Kato, “Implementation of a Network Control Mechanism that Enables Passing Access Rights among Users”, IPSJ Journal, Vol.51, No.3, Mar. 2010
Conferences
- Tsuyoshi Ozawa, Makoto Onizuka,Yoshifumi Fukumoto,Satoshi Moriai, “MapReduce optimization using mapper-side aggregation”, IPSJ Comsys2012, No.3, Dec. 2012 (Awards: Comsys2012 Young Research Paper award(1/15), IPSJ Computer Sicience encourage award 2013)
- Takafumi Mizuno, Hiraku Toyooka, Tsuyoshi Ozawa, Yashushi Shinjo, Akira Sato, Hisashi Nakai, Kozo Itano, “FileSystem Outsourcing on FreeBSD on Virtual Machine”, IPSJ ComSys2009, Poster session, 2 pages 2009.
- Kaname Tomatsuri, Tsuyoshi Ozawa, Yasushi Shinjo, Akira Sato, Hisashi Nakai, Kozo Itano, “A proposal of memory management outsourcing on Virtual Machine”, IPSJ ComSys2009, Poster session, 2 pages 2009.
- Mitsuhiro Mabushi, Tsuyoshi Ozawa, Shingo Takada, Hiraku Toyooka, Keigo Matsui, Akira Sato, Yasushi Shinjo, Kazuhiko Kato, “Implementation of a Network Control Mechanism that Enables Passing Access Rights among Users”, IPSJ IOT, 2009
Posters
- Tsuyoshi Ozawa，Go Saito，Hideki Eiraku，Yasushi Shinjo，Akira Sato，Hisashi Nakai，Kozo Itano, “A proposal for precise Timer on Hosted Virtual Machine”, IPSJ ComSys2008 Poster session, 2008
Awards
- Tsuyoshi Ozawa, “Open-source contributions to Apache Hadoop”, Microsoft Most Valuable Professional award, 2016 - 2019
- Tsuyoshi Ozawa, “Research activity and open-source contributions to Apache Hadoop”, Approval of the 9th Japan OSS Contoribution Award, Feb 2014
- Tsuyoshi Ozawa, IPSJ Computer Science Research Award for Young Scientists, 2013
- Tsuyoshi Ozawa, Comsys2012 Young Research Paper award(1/15), Dec, 2012
Articles
- Tsuyoshi Ozawa, Hiroyuki Yamada, How and Why Hadoop Works? 13, 14, 15, 16, gihyo.jp, 2015 - 2016
- Tsuyoshi Ozawa, Kosuke Saruta, Shinichi Yamashita, “Distributed processing framework Hadoop 2”, Nikkei SYSTEMS, 6pages，Mar. 2014
- Tsuyoshi Ozawa, “YARN”, Chapter 22, Introduction to Hadoop 2nd edition, Jul. 2013
- Tsuysohi Ozawa, “Memory management and virtual memory”, Section. 2(Understanding how to work OS kernel), Chapter 4,Introduction to Linux engineer, Apr. 2011
- Tsuyoshi Ozawa, “Memory management and virtual memory”, Software Design, Dec. 2009
Talks
- Tsuyoshi OZAWA and Junping Du, “Hadoop 3 in a nutshell”, Hadoop Summit Tokyo 2016, 2016 [slideshare]
- Tsuyoshi OZAWA, “YARN: A Resource “Manager for Analytic Platform”, Apache Big Data North America, 2016 [slidehare]
- Tsuyoshi OZAWA, “Apache Hadoop - Present and Future”, Keynote of Hadoop Conference Japan 2016, 2016 [slideshare]
- Tsuyoshi OZAWA, “Introduction to Data Analysis and Data processing framework”, NTT Docomo Innovation Seminar, 2016 [slideshare]
- Tsuyoshi OZAWA, “Apache Hadoop - Present and Future”, Keynote of Hadoop Conference Japan 2016, 2016
- Tsuyoshi OZAWA, “Apache Hadoop ecomsystem and distribted processing : present and future”, IIJ Lab Open Seminar, 2015 [slideshare]
- Tsuyoshi OZAWA, “Inside Apache Hadoop: developing open source software and a research engineer”, DEIM 2015 rising star session, 2015
- Tsuyoshi OZAWA, “Apache Hadoop -What’s next?-, DB Tech Showcase 2014”, 2014 [slideahere]
- Tsuyoshi OZAWA, “Taming YARN”, Hadoop Conference Japan 2014 Technical Talk, 2014 [slideshare]
- Tsuyoshi OZAWA, “Apache Hadoop -What’s next?-”, DB Tech Showcase 2014, 2014 [slideshare]
- Tsuyoshi OZAWA, “Taming YARN, Hadoop Conference Japan 2014 Technical Talk”, 2014 [slideshare]
- Tsuyoshi OZAWA, “NTT Meets Hadoop”, Cloudera World Tokyo, 2013 [slideshare]
- Tsuyoshi OZAWA, “Node/Rack-level aggregation for Hadoop/MapReduce”, Hadoop Conference Japan 2013 Winter lightning talk session, 2013
- Tsuyoshi OZAWA, “Memcached as a Service, CloudFoundry meetup in Japan”, 2012 [slideshare]
- Tsuyoshi OZAWA, “Multi-level aggregation for Hadoop/MapReduc"e, Prestrata/Hadoop World Meetup NY, 2012 [slideshare]
- Tsuyoshi OZAWA, “First step for dynticks in FreeBSD”, Asia BSD Conference 2010 lightning talk session, 2010
Contacts: ozawa.tsuyoshi at gmail.com