Journal ArticleDOI
Federated database systems for managing distributed, heterogeneous, and autonomous databases
Amit P. Sheth,James A. Larson +1 more
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In this paper, the authors define a reference architecture for distributed database management systems from system and schema viewpoints and show how various FDBS architectures can be developed, and define a methodology for developing one of the popular architectures of an FDBS.Abstract:
A federated database system (FDBS) is a collection of cooperating database systems that are autonomous and possibly heterogeneous. In this paper, we define a reference architecture for distributed database management systems from system and schema viewpoints and show how various FDBS architectures can be developed. We then define a methodology for developing one of the popular architectures of an FDBS. Finally, we discuss critical issues related to developing and operating an FDBS.read more
Citations
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Journal ArticleDOI
SEMINT: a tool for identifying attribute correspondences in heterogeneous databases using neural networks
Wen-Syan Li,Chris Clifton +1 more
TL;DR: Theoretical background and implementation details of SEMINT are provided and experimental results from large and complex real databases are presented.
Proceedings ArticleDOI
Query caching and optimization in distributed mediator systems
TL;DR: A cost-based optimization technique that caches statistics of actual calls to the sources and consequently estimates the cost of the possible execution plans based on the statistics cache is proposed.
Proceedings ArticleDOI
Managing semantic heterogeneity in databases: a theoretical prospective
TL;DR: This tutorial describes fundamental problems raised by semantic heterogeneity and surveys theoretical frameworks that can provide solutions for them.
Journal ArticleDOI
Context interchange: new features and formalisms for the intelligent integration of information
TL;DR: It is shown that queries formulated on shared views, export schema, and shared “ontologies” can be mediated in the same way using the Context Interchange framework.
Journal ArticleDOI
Query reformulation for dynamic information integration
TL;DR: This paper describes the query reformulation process in SIMS and the operators used in it, and provides precise definitions of the reformulation operators and the rationale behind choosing the specific ones SIMS uses.
References
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Book
The entity-relationship model: toward a unified view of data
TL;DR: A data model, called the entity-relationship model, is proposed that incorporates some of the important semantic information about the real world and can be used as a basis for unification of different views of data: the network model, the relational model, and the entity set model.
Book
Fundamentals of Database Systems
TL;DR: Fundamentals of Database Systems combines clear explanations of theory and design, broad coverage of models and real systems, and excellent examples with up-to-date introductions to modern database technologies.
Book
An Introduction to Database Systems
TL;DR: Readers of this book will gain a strong working knowledge of the overall structure, concepts, and objectives of database systems and will become familiar with the theoretical principles underlying the construction of such systems.
Book
Principles of Distributed Database Systems
M. Tamer zsu,Patrick Valduriez +1 more
TL;DR: This third edition of a classic textbook can be used to teach at the senior undergraduate and graduate levels and concentrates on fundamental theories as well as techniques and algorithms in distributed data management.
Journal ArticleDOI
A comparative analysis of methodologies for database schema integration
TL;DR: The aim of the paper is to provide first a unifying framework for the problem of schema integration, then a comparative review of the work done thus far in this area, providing a basis for identifying strengths and weaknesses of individual methodologies, as well as general guidelines for future improvements and extensions.