CEC Faculty Articles

Title

On Optimal Evaluation of Preference Queries

Document Type

Article

Date

10-2006

Publication Title

2006 IEEE International Conference on Systems, Man, and Cybernetics

ISSN or ISBN

1062-922X

First Page

2665

Last Page

2671

Description

Preference queries, in general, retrieve most preferred tuple(s) in a given relation r(R) for a user-specified preference formula in either relational algebra or SQL. Due to the huge volume of data in today's databases and world-wide-web information systems and peculiar characteristics of preference formula defined in terms of r(R) x r(R), processing preference queries could be time-consuming, and some techniques for improving the process of evaluating preference queries are needed. This paper will address some semantic techniques and heuristics to improve the processing of preference queries. The technique will explore semantic relationship among a set of attributes in a preference formula and utilize this kind of semantic information to evaluate preference queries better.

DOI

10.1109/ICSMC.2006.385266

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