Tsuyoshi Ozawa

Ph.D. student, ICE, UTokyo
ozawa at
My advisor (Ph.D. program): Prof. Kazuo Goda

I am a Ph.D. student on topics in database management systems and storage systems at Information and Communication Engineering at UTokyo. I am a member of a database research group in Advanced Data Engineer laboratory.

Education

• Ph.D. student, Information Science and Technology, Dept. of Information and Communication Engineering, The University of Tokyo (Apr. 2024 - current)
• M.S., Information Science and Technology Dept. of Systems and Information Engineering, University of Tsukuba (Apr. 2008 - Mar. 2010)
• B.E., Dept. of Information and System Engineering, Chuo University (Apr. 2004 - Mar. 2008)

Work experiences

• Specially appointed researcher, UTokyo (Jul. 2017 - Mar. 2024)
• Researcher, NTT (Apr. 2010 - Jul. 2017)

Publication

Conferences

• 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", NVMW'21 Poster session, Mar. 2021 [extended asbt.]

Journals

• Tsuyoshi Ozawa, Makoto Onizuka, Yoshifumi Fukumoto, Satoshi Moriai, "MapReduce optimization using mapper-side aggregation", IPSJ Journal: Advanced Computer Systems, Vol.43, pp.71-81, 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, pp. 974-988, Mar. 2010

Conferences (no review)

• Tsuyoshi Ozawa, Makoto Onizuka,Yoshifumi Fukumoto, Satoshi Moriai, "MapReduce optimization using mapper-side aggregation", IPSJ Comsys 2012, No.3, Dec. 2012 (Awards: Comsys 2012 Young Research Paper award, IPSJ Computer Sicience encourage award 2013)
• Kaname Tomatsuri, Tsuyoshi Ozawa, Yasushi Shinjo, Akira Sato, Hisashi Nakai, Kozo Itano, "A proposal of memory management outsourcing on Virtual Machine", IPSJ ComSys 2009 Poster session, No. 612, Nov. 2009.
• Takafumi Mizuno, Hiraku Toyooka, Tsuyoshi Ozawa, Yashushi Shinjo, Akira Sato, Hisashi Nakai, Kozo Itano, "FileSystem Outsourcing on FreeBSD on Virtual Machine", IPSJ Comsys 2009 Poster session, No. 611, 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, Mar. 2009
• Tsuyoshi Ozawa，Go Saito，Hideki Eiraku，Yasushi Shinjo，Akira Sato，Hisashi Nakai，Kozo Itano, "A proposal for precise Timer on Hosted Virtual Machine", IPSJ Comsys 2008 Poster session, No. P12, 2008

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, 6 pages，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

Awards

• Tsuyoshi Ozawa, Microsoft Most Valuable Professional award, 2016 - 2019
• Tsuyoshi Ozawa, the 9th Japan OSS Contribution Award, Feb 2014
• Tsuyoshi Ozawa, IPSJ Computer Science Research Award for Young Scientists, 2013
• Tsuyoshi Ozawa, IPSJ Comsys 2012 Young Research Paper award, Dec, 2012

Services

• Project Management Committee, Apache Hadoop Project Dec, 2015 - current
• Committer, Apache Hadoop Project, Dec. 2014 - current
• Editor, Edeitorial Committee of IPSJ Transactions on Advanced Computing System, Apr. 2016 - Mar. 2019
• Board member, IPSJ SIGOS, Apr. 2017 - Mar. 2019
• Steering committee member, IPSJ SIGOS, Apr. 2014 - Mar. 2017