Now showing items 11-20 of 51
A new scheme for efficient and direct shape optimization of complex structures represented by polygonal meshes
(John Wiley & Sons, Ltd., 2003-12-14)
In this paper, a new shape optimization approach is proposed to provide an efficient optimization solution of complex structures represented by polygonal meshes. Our approach consists of three main steps: (1) surface ...
Optimizing complex queries based on similarities of subqueries
(Springer-Verlag, 2005-09)
As database technology is applied to more and more application domains, user queries are becoming increasingly complex (e.g. involving a large number of joins and a complex query structure). Query optimizers in existing ...
An object-oriented approach to Computer Integrated Systems
(Kluwer Academic Publishers; Springer Science+Business Media, 1996-08)
In recent years computers have been incorporated into large scale systems such as nuclear plant, flight control, and manufacturing systems. Such Computer Integrated Systems (CIS) normally consist of heterogeneous subsystems. ...
The Algebraic Framework for Object-Oriented Systems
(Kluwer Academic Publishers; Springer Science+Business Media, 1998-09)
Category Theory is introduced as the mathematical model for object-oriented systems which are distributed, heterogeneous, real-time, embedded, and open-ended. Each object can be represented as an algebra. A collection of ...
Cost Estimation for Queries Experiencing Multiple Contention States in Dynamic Multidatabase Environments
(Springer-Verlag London Limited, 2003-02)
Accurate query cost estimation is crucial to query optimization in a multidatabase system. Several estimation techniques for a static environment have been suggested in the literature. To develop a cost model for a dynamic ...