Abstract. We present a semantic-based version of UDDI registry, specifically devised for pervasive environments, able to cope with automated mobile service discovery and composition and compliant with Semantic Web technologies. The framework exploits non-standard inference services within OWL-S. The approach also deals with effect duplication and non-exact matches, computing an approximate cove...

In this paper we present a model for User Model (UM) interoperability among feature-based adaptive applications on the Web. In order to enhance the interaction capabilities of such systems, we propose to exploit Web standards for interoperability, i.e. Web Services technologies and Semantic Web languages, together with negotiation techniques based on dialogue. Our model is based on a Service Or...

While Web Services already provide distributed operation execution, the registration and discovery with UDDI is still based on a centralized repository. In this paper we propose a distributed XML repository, based on a Peer-to-Peer infrastructure called pXRepository for Web Service discovery. In pXRepository, the service descriptions are managed in a completely decentralized way. Moreover, sinc...

The SIMDAT Pharma Grid is an industry-oriented, semantics enabled Grid environment whose purpose, among others, is to intelligently assist Biologists in conducting in-silico experiments through automating discovery, selection, composition, and invocation process of bioinformatics data services and analysis services. In the first system architecture design and prototype implementation, we apply ...

Recently, Web services have generated great interests in both vendors and researchers. Web services, based on existing Internet protocols and open standards, can provide a flexible solution to the problem of application integration. With the help of WSDL, SOAP, and UDDI, Web services are becoming popular in Web applications. However, the current Web services architectures are confronted with a ...

Many large semantic systems can be described as Semantic Grids of Semantic Grids with large amounts of relatively static services and associated semantic information combined with multiple dynamic regions (sessions or subgrids) where the semantic information is changing rapidly. We design a hybrid Information Service supporting both the scalability of large amounts of relatively slowly varying ...

Existing registry technologies such as UDDI can be enhanced to support capabilities for semantic reasoning and inquiry, which subsequently increases its usability range. The Grimoires registry was developed to provide such support through the use of metadata attachments to registry entities. The use of such attachments provides a way for allowing service operators to specify security assertions...

We argue that data webs employing specialized path services, network protocols, and data protocols can be an effective platform to analyze and access millions of distributed Gigabyte (and larger) size data sets. We have built a prototype of such a data web today and demonstrated that it can effectively access, analyze and mine distributed Gigabyte size data sets even over thousands of miles by ...

Current e-commerce systems require substantial human intervention in almost all phases of a business transaction. Software agent technology can be used to alleviate the problem and try to automate the business process as much as possible. This paper intends to combine the autonomous behavior of software agents and the interoperability of Web Services across heterogeneous and self-interested env...

This paper discusses the predicaments surrounding web service description, advertising and discovery. It provides an overview of the various technologies involved and advocates how current state-of-the-art standards such as UDDI and WSDL can be enhanced by means of concepts from the semantic web vision such as RDF, RDF Schema and DAML+OIL. Moreover, it is shown how semantic metadata specificati...