Earticle

초록

영어

In order to realize the idea of pay-as-you-go (PAYG) data management which dataspace emphasizes, the very loosely structured data model is usually used to describe the massive, heterogeneous and dynamic data in dataspace. However, the present study mainly concentrates on the applications of the data model, and the query theory research is less. The query algebra is a theoretical foundation for query and its optimization in a PAYG fashion, so that how to establish a complete algebra based on the characteristics of loosely structured data model is an important problem need to be solved. In this paper, a formal definition of very loosely structured data model is given, then the query model and query algebra based on the model are proposed, which support to not only the operations such as set operators, selection, projection and join, but also association query in dataspace.

목차

Abstract
 1. Introduction and Motivation
 2. Related Work
 3. Data Model
 4. Query Model and Query Algebra
 5. Association Query
 6. Conclusions and Future Work
 Acknowledgements
 References

키워드

저자

• Ying Pan [ College of Computer and Information Engineering, Guangxi Teachers Education University, Nanning 530023 ]
• Changan Yuan [ College of Computer and Information Engineering, Guangxi Teachers Education University, Nanning 530023 ]
• Zhengqi Li [ College of Computer and Information Engineering, Guangxi Teachers Education University, Nanning 530023 ]
• Wenjing Li [ College of Computer and Information Engineering, Guangxi Teachers Education University, Nanning 530023 ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Database Theory and Application

• 간기

  격월간

• pISSN

  2005-4270

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605