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Relational languages and data models for continuous queries on sequences and data streams
Yan-Nei Law, Haixun Wang, Carlo Zaniolo
Article No.: 8
Most data stream management systems are based on extensions of the relational data model and query languages, but rigorous analyses of the problems and limitations of this approach, and how to overcome them, are still wanting. In this article, we...
Despite the ubiquity of physical obstacles (e.g., buildings, hills, and blindages, etc.) in the real world, most of spatial queries ignore the obstacles. In this article, we study a novel form of continuous nearest-neighbor queries in the presence...
Design and analysis of a ranking approach to private location-based services
Man Lung Yiu, Christian S. Jensen, Jesper Møller, Hua Lu
Article No.: 10
Users of mobile services wish to retrieve nearby points of interest without disclosing their locations to the services. This article addresses the challenge of optimizing the query performance while satisfying given location privacy and query...
An inverse of a schema mapping M is intended to undo what M does, thus providing a way to perform reverse data exchange. In recent years, three different formalizations of this concept have been introduced and studied, namely the...
Asymptotically efficient algorithms for skyline probabilities of uncertain data
Mikhail J. Atallah, Yinian Qi, Hao Yuan
Article No.: 12
Skyline computation is widely used in multicriteria decision making. As research in uncertain databases draws increasing attention, skyline queries with uncertain data have also been studied. Some earlier work focused on probabilistic skylines...
A relational approach to functional decomposition of logic circuits
Tony T. Lee, Tong Ye
Article No.: 13
Functional decomposition of Boolean functions has a profound influence on all quality aspects of cost-effectively implementing modern digital systems and data-mining. The relational databases are multivalued tables, which include any truth tables...
Data exchange deals with translating data structured in some source format into data structured in some target format, given a specification of the relationship between the source and the target and possibly constraints on the target; and...