Research on a Data Infrastracture for Diverse Usage: Data Models, Database Languages, and Access Methods

Research Project

Project/Area Number	25540039
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Multi-year Fund
Research Field	Multimedia database
Research Institution	Kyushu University
Principal Investigator	Ikeda Daisuke 九州大学, システム情報科学研究科(研究院, 准教授 (00294992)
Project Period (FY)	2013-04-01 – 2016-03-31
Project Status	Completed (Fiscal Year 2015)
Budget Amount *help	¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000) Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000) Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000) Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Keywords	キーワード検索 / 関係データベース / 関係代数 / 文字列照合 / 一貫性 / 分散処理 / データ基盤 / データベース / 情報検索 / データモデル / アクセス方法
Outline of Final Research Achievements	Aiming to create core technologies for a data infrastructure on which multiple databases coexists, we will develop a theory of a data model and algorithms, and create a virtual prototype system based on the current database technologies to conduct the proof-of-concept for the proposed theory. We have proposed a simple theoretical system in which only a pattern matching is allowed for flat text files, and shown that the proposed system can simulate most of operations of the relational algebra. In this simulation, multiple queries are simultaneously processed without loosing data consistency. Moreover, we have proposed a method for processing queries on distributed data stores and presented it at an international conference.