The rising number of available web services with the same functionality hampers the web service discovery process and complicates clients while searching for a web service that best meets their requirements. That is why the web service description and discovery need to concern not only functional but also non-functional (QoS) properties of web services. This paper contributes to that challenge ...

Description of constraints and capabilities of Web services is crucial to enable flexible service discovery, interaction and management. Constraints and capabilities are at the heart of representing policies that govern the behavior of Web services. Because policies regulate the behavior of different parties they are effective if and only if they are unambiguously understood by all the parties ...

Although Semantic Web service discovery has been extensively studied in the literature ([7], [12], [15] and [10]), we are far from achieving an effective, complete and automated discovery process. Using the incidence calculus [4], a truth-functional probabilistic calculus, and a lightweight brokering mechanism [17], the article explores the suitability of integrating probabilistic reasoning in ...

Bringing semantics to Web Services description and matching remarkably improves the recall and precision ratios of Service discovery. Though there are many effective semantic based Web Services matchmakers, they have poor time efficiency for consuming time in the semantic reasoning step. To shorten service matching time, this paper presents a fast matchmaker for OWL-S services, called XServices...

Main challenges to the current semantic web service technologies are exponential continuous growth in the number of services on the Internet, syntax based discovery, lack of common agreed upon semantic service standards and heterogeneity of ontologies. In this paper, a service discovery approach independent of semantic service description models is proposed to solve the challenges of the curren...

This paper describes an ontology-based service discovery front-end interface for GloServ. GloServ is a service discovery engine, which is an ontology-based distributed service discovery system that allows sophisticated querying of services. The working implementation of the front-end interface demonstrates how GloServ can be used for different types of web service discovery. The front-end gener...

Many tasks within semantic web service discovery can be formalized as reasoning problems related to the partial ordering of subactivity occurrences in a complex activity. We show how the first-order ontology of the Process Specification Language (PSL) can be used to represent both the queries and the process descriptions that constitute the underlying theory for the reasoning problems. We also ...

In this paper we describe an approach to design an adaptive system as a Semantic Web Service. We focus on how adaptive systems can provide adaptive services through web service technologies. In particular, we concentrate on adding semantic information to enrich the service discovery phase. We present a recommender system, UbiquiTO-S, which exploits the technology of Web Services (WS) and Semant...

Even though service discovery is one of the vital steps in Web service invocation, service requests are usually expressed by rather simple means. While syntax-based service descriptions are usually addressed using keyword-based queries, Semantic Web Services are queried using “perfect” service descriptions. Hence, a service requester is not able to control the outcome of the discovery process i...

The Semantic Web Service Challenge is one of the major initiative dedicated to work on Semantic Web Service (SWS) discovery and selection. It represents an effective manner for evaluating the functionality of SWS technologies. In this paper, we provide a new SWS-Challenge scenario proposal with new interesting problems to be solved on the basis of an analysis of a real world shipment scenario i...