日本語
The University of Electro-Communications
Graduate School of Informatics and Engineering, School of Informatics and Engineering
"Department of Computer and Network Engineering, Cluster I (Informatics and Computer Engineering)"
Professor
OHMORI Tadashi
Year of birth:1962
Personal website
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Career
Graduate School of Informatics and Engineering Dept. Computer and Network Engineering, Computer Science program Professor 2016/04/01-Present
Graduate school of Information Systems Department of Information System Fundamentals Professor 2010/04/01-Present
Graduate School of Information Systems Dept. Information System Fundamentals Associate Professor 1994/04-2010/03/31
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Academic background
The University of Tokyo Graduate School, Division of Engineering Information Engineering Course Doctoral program 1990/03 Completed
The University of Tokyo Graduate School, Division of Engineering Information Engineering Course Master's program 1987/03 Completed
The University of Tokyo Faculty of Engineering Dept. Electrical Engineering 1985/03 Graduated
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Academic degrees
Doctor of Engineering The University of Tokyo 1990/03
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Outlines of current research
database engineering, new data-platform systems, advanced query processing and data mining from massive data. concurrency and consistency issues for new data-platform systems.
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Classes responsible within the university
2022 Principles of Database Engineering 2 Spring semester Both graduate schools, IE and IS Master's and doctoral programs
2022 Fundamentals of Database Systems Spring semester Undergraduate, daytime
2022 Fundamentals of Algorithms I Fall semester Undergraduate, daytime
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Current research areas
Multimedia database
Theory of informatics
Computer system
Software
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Research keywords
advanced query and database processing algorithms over massive data
design, algorithms, implementation issues of new data-platform systems
information extraction from massive data and consistency management as well as index, concurrency, recovery, distributed execution over shared data
data mining and data-driven applications over massive real-world data
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Current research subjects
advanced query, information extraction, data mining over massive data and database 1987/04-Present
design and implementation issues for new data-platform systems, consistency and concurrency over shared/distributed database 1990/03-Present
information extraction and data-driven applications over real-world data collections including spatial/temporal data information extraction, spatio-temporal data. 2015/04/01-Present m-closest keyword search over spatial datasets and its extension towards a new spatial search engine.
simulation of multi-agent systems by using very large database. 1994/04-1998/03
A Study on a Multi-Dimensional Web-Structure Mining System on a basis of a Multi-Dimensional Data-Cube Model. 2005/04-2012/03
A Study on Models and Algorithms for Massive Log Data Analysis data mining and information extraction from massive, heterogeneous sequential datasets. 2005/04-2007/03
A Study on Keyword Search over Structured Data and Graph Databases keyword search, hybrid XML-Relational database, Graph database, graph enumeration algorithms 2008/04-2011/03
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Published books
Book, translated J.Gray, A.Reuter,"Transaction Processing: the concept and techniques", MorganKaufmann Pub. M.Kitsuregawa, Tadashi Ohmori, and 7 translators Nikkei BP 277-452 2001
Book, dictionary Handbook of Artificial Intelligence Masaru KITSUREGAWA, Tadashi OHMORI Japan Society of Artificial Intelligence 1990
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Published papers
Paper Yes Edge Bundling for Zoomable Network Visualization Joint K.Akiyama, H.Fujita, T.Ohmori, T.Shintani IPSJ Journal 63/ 3, 817-830 2022/03
Paper Yes Utilizing Block Partitioning and Hash-Join in L2AP Similarity-Join Method Joint R.Yoshimura, T.Ohmori, T.Shintani, H.Fujita DBSJ Japanese Journal Vol.17-J/ No.10, (8 pages)- 2019/03
Paper Yes A New Efficient Algorithm for m-Closest Spatial Keyword Search by using Priority Control and Tight Lower-Bound Joint Yuan Qiu, Tadashi Ohmori, Takahiko Shintani, Hideyuki Fujita IEICE Transaction, Vol. D 99-D/ 7, 638-651 2016/07
Paper Yes Skip search approach for mining frequent pattern from uncertain database Joint H.Tateshima, T.Shintani, T.Ohmori, H.Fujita DBSJ Japanese Journal Vol.14/ Article No.6, 1-7 2016/03 2189-0374
Paper Yes Design and Evaluation of the Database System IDPS-DB on the Intellectual Distributed Processing System IDPS Shuji HARASHIMA, Tadashi OHMORI Transactions of IEICE, Japan, Series D. Vol.J96-D/ No.10, 2274-2285 2013/10
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Research presentations
Workshop ネットワーク可視化のための拡大描画に適したエッジバンドリング手法 DEIM 2020 (データ工学と情報技術フォーラム) H8-1 No 秋山,藤田,大森,新谷 2020/03
Workshop An Enhancement of Similarity-Join Algorithm L2AP by using Block Partitioning and Hash Join Techniques DEIM 2018 I6-2 No Ryunosuke Yoshimua, Tadashi Ohmori,T.Shintani, H.Fujita 2018/03/05
URL
Workshop 位置・方向情報付写真群を用いた空間を要約する経路の作成 DEIMフォーラム2016 H5-4 No 相楽翔太,藤田秀之,大森匡,新谷隆彦 2016/03/01
Workshop A New Search Strategy for m-Closest Keywords Query by using Dynamically-Created Grid-Partitioning over Spatial Datasets Int'l Symposium on Cartoraphy in Internet and Ubquitous Environments 2015 P2 Yes Y.Qiu, H.Zhai, A.H.Dang, T.Ohmori, H.Fujita, T.Shintani 2015/03/18
Workshop A New Load-Distribution Algorithm for Efficient Edit-Distance Join on MapReduce DEIM2015 E7-6 No Atsuhito KONNO, Tadashi OHMORI, Takahiko SHINTANI 2015/03/03
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Awards
FIT session award Embedding Point-Data Score in m-Closest Keyword Search Problem over Spatial Web 2020/09/01
DEIM2016 優秀プレゼンテーション賞(主指導学生M2) 位置・方向情報付写真群を用いた空間を要約する経路の生成 2016/03/02
FIT session award Efficiency improvement of mCK search problem by using recursive DCC strategy 2015/09/14
Session Presentation Award A New Load-Distribution Algorithm of Efficient Edit-Distance Join over MapReduce platforms 2015/03/04
Student presentation award A new algorithm of m-closest keywords query over spatial data 2014/03/13
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Grants-in-aid for scientific research
A Research on Efficient Algorithms for Creating information-Spaces on Massive-Data Systems. "Scientific research (C), general" 2012/04/01-2016/03/31
A Study on Database Systems for Multi-Dimensional Web Mining "Scientific research (C), general" 2009/04/01-2012/03/31
データ管理システムのログデータ分析方式に関する研究 "Scientific research (C), general" 2005/04/01-2007/03/31
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Past records of joint or funded research
イベントデータの利用技術に関する研究 2001-2001 Research commissioned by a company
WEBマイニングに関する研究 2001-2001 Funded commissioned research
イベントログデータの利用技術に関する研究 2002-2002 Research commissioned by a company
イベントログデータの利用に関する研究 2003-2003 Research commissioned by a company
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Memberships of academic societies
電子情報通信学会 1987-Present
情報処理学会 1985-Present
IEICE Technical Committee of Data Engineering 1987-Present
ACM SIGMOD Japan Chapter 1998-Present
ACM 1998-Present
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Committee or council involvement
DEIM(データ工学と情報マネジメントフォーラム)プログラム委員 DEIMプログラム編成委員 2013/03-2019/03
ACM SIGMOD Japan chapter vice chief editor 2011/06-2015/06
Trans. IEICE of Japan, D division, editors of special issues on data engineering, 2008-2009. 論文誌データ工学特集号編集幹事 2008/05-2010/02
情報処理学会 データベースシステム研究会論文誌TOD編集委員 2003/04-2011/03
ACM SIGMOD Japan Chapter SIGMOD日本支部書記・幹事 1999-2002
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Committee activity in the University
情報・ネットワーク工学専攻コンピュータサイエンス(CS)プログラム長 プログラム長 2019/04-2020/03
IS進路委員会・委員長 委員長 2015/12-2016/12
IS教務委員会・改組対応教務委員会 委員 2015/04-2016/03
IS教務委員会(改組対応教務委員含む) 委員長(IS側) 2014/04-2015/03
IS入試委員会 委員長 2013/04-2014/03
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