Current trends in distributed computing and e-business processing suggest that many applications are evolving towards Service Oriented Computing (SOC) with technologies such as Web services. Services are autonomous platform-independent computational elements, and we observe an increasing need for core SOC technologies for dynamic discovery, selection, and composition of services. However, such ...

With the increase in the number of available web services, searching for appropriate web services fulfilling the service discoverer’s functional requirements has become as major challenge. Web services standards, in their present format support only keyword based search and many services which can fulfill the user’s requirements are not retrieved. Basic requirement for efficient service discove...

Additional problems of software testing arise when applications under test are developed in the component-based approach. Component misuse is one of them. The component misuse problem occurs when a component is used in a way that differs from the component producer's expectation. This paper explores the cause of the component misuse problem and proposes a technique to discover, specify, and ver...

XCS is a learning classifier system that uses genetic algorithms to evolve a population of classifiers online. When applied to classification problems described by continuous attributes, XCS has demonstrated to be able to evolve classification models—represented as a set of independent interval-based rules—that are, at least, as accurate as those created by some of the most competitive machine ...

We propose a novel topic discovery algorithm for unlabeled images based on the bag-of-words (BoW) framework. We first extract a dictionary of visual words and subsequently for each image compute a visual word occurrence histogram. We view these histograms as rows of a large matrix from which we extract sparse principal components (PCs). Each PC identifies a sparse combination of visual words wh...

In CBSE, current approaches based on software component are in short of flexibility because of lacking semantic. In this paper, we introduce an extended semantic discovery of software components in which non functional properties of components are considered. We also introduce an ontology supported automatic component composition method to realize the integration of the adequate component compo...

Structure-based virtual screening is one of the most important and common computational methods for the identification of predicted hit at the beginning of drug discovery. Pocket recognition and definition is frequently a prerequisite of structure-based virtual screening, reducing the search space of the predicted protein-ligand complex. In this paper, we present an optimal ligand shape descrip...

let $pounds$ be the category of locally compact abelian groups and $a,cin pounds$. in this paper, we define component extensions of $a$ by $c$ and show that the set of all component extensions of $a$ by $c$ forms a subgroup of $ext(c,a)$ whenever $a$ is a connected group. we establish conditions under which the component extensions split and determine lca groups which are component projective. ...