Database System Extended Abstract Alvaro A.A. Fernandes, Maria L. Barja, Norman W. Paton, M. Howard Williams, Andrew Dinn, Imara P. Diaz, Alia I. Abdelmoty Department of Computing and Electrical Engineering, Heriot-Watt University Riccarton, Edinburgh EH14 4AS, Scotland, UK e-mail: @cee.hw.ac.uk

Aims. We propose the application of multiresolution transforms, such as wavelets (WT) and curvelets (CT), to the reconstruction of images of extended objects that have been acquired with adaptive optics (AO) systems. Such multichannel approaches normally make use of probabilistic tools in order to distinguish significant structures from noise and reconstruction residuals. Therefore, we also tes...

Inevitably, reading is one of the requirements to be undergone. To improve the performance and quality, someone needs to have something new every day. It will suggest you to have more inspirations, then. However, the needs of inspirations will make you searching for some sources. Even from the other people experience, internet, and many books. Books and internet are the recommended media to hel...

Reuse of software designs, experience and components is essential to making substantial improvements in software productivity, development cost, and quality. However, the many facets of reuse are still rarely used in the various phases of the software development lifecycle because of a lack of adequate theories, processes, and tools to support consistent application of reuse concepts. There is ...

Coordination viewed as the notion of \managing dependencies among activities" 8] is the key concept for modelling concurrent systems. In this paper, we investigate coordination from the viewpoint of programmers and programming language designers with respect to object{oriented programming. Finally, we evaluate existing object{oriented coordination models.

In this paper, we state a new way for measuring symmetry of three-dimensional graphic object. The idea is based on the representation of three-dimensional objects by their Extended Gaussian Image (EGI). The EGI is constructed by mapping each surface normal of any object to the Gaussian sphere. The Gaussian sphere is presented by icosahedrons and 60 rotations are applied. An experimental evaluat...

Tlie knowledge imperfections should be considered when modeling complex problems. A solution is to develop a model that reduces the complexity and another option is to represent the imperfections: uncertainty, vagueness and incompleteness in the knowledge base. This paper proposes to extend the classical object oriented architecture in order to allow modeling of problems with intrinsic imperfec...

Haskell has a sophisticated mechanism for overloading identifiers with multiple definitions at distinct types. Object-oriented programming has a similar notion of overriding and overloading for methods names. Unfortunately, it is not possible to encode object-oriented overloading directly using Haskell overloading. This deficiency becomes particularly tiresome when Haskell programs wish to call...

The object relational data model [1,2,3] takes advantage of Codd's relational calculus power [5] and the object concept characteristics [6,7,11]. In fact, two major approaches have been adopted to satisfy the designers and users of the advanced databases. A revolutionary approach [3,7,13,15] which integrates the object characteristics into the new data models and where the specification of data...