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In recent years, the number of services and applications on the World Wide Web has increased exponentially. Consequently, a plethora of services providing similar functionalities are now available, which often poses a challenge for the users in terms of quality-based selection of their required services. Interaction with unknown services raises the issue of trust. Moreover, the service deliverables...
The exponential growth of information on the Web has prompted the introduction of new technologies such as Semantic Web and Common Sense knowledge bases. While there are different models available to present information, RDF, as the cornerstone of Semantic Web technologies, has a dominant place for formats suitable both for human interactions and machine understanding. In this paper we present ConceptRDF,...
Online shopping generates billions of dollars in revenues, including both the physical goods and online services. Product images and associated descriptions are the two main sources of information used by the shoppers to gain knowledge about a product. However, these two pieces of information may not always present the true picture of the product. Images could be deceiving, and descriptions could...
The exponential growth of information has prompted the introduction of new technologies such as Semantic Web and Common Sense knowledge bases. To connect the different knowledge presentations together is a primary requirement, and ontologies are central we need for this transformation. In this paper we introduce ConceptOnto which is an ontology based on the ConceptNet knowledge base with extension...
This paper investigates the problem of rating propagation in composite systems. We propose a method for reputation distribution among component services in Web service composition environments. The main idea lies in providing component services with the appropriate amount of share received for the overall rating. The amount should be proportional to the contribution and performance of the component...
With the extensive adaptation of Web service based applications in dynamic businesses applications including on demand computing, highly configurable virtual solutions and cloud computing based systems demand automated tools for composing and managing these services in composite systems. The use of standard protocols for publishing, discovery, invocation, process definition and SLA definition etc...
Web services composition enables the business to dynamically and seamlessly integrate business applications on the web. The performance of an overall composition is a function of its individual component services. Hence, both functional and nonfunctional properties of Web services are important when negotiating component service for a system. Automated negotiation helps speed up this process and often...
Web services are a popular choice for component oriented systems that support dynamic compositions. Automated negotiation among Web services provides an effective way for the services to bargain for their optimal customizations and allows the discovery of overlooked potential solutions. Unique and dynamic Quality of Service (QoS) requirements of service consumers pose challenges for effective approaches...
The volume of information available on the World Wide Web and the rate of its growth requires new techniques to handle and organize this data. Ontologies are becoming the pivotal methodology to represent domain-specific conceptual knowledge and hence help in providing solutions for Question Answering (QA) systems. This paper introduces an approach for enhancing the capabilities of QA systems using...
Web services are a popular choice for component oriented systems. Web services not only provide a platform independent architecture but also support dynamic compositions to facilitate on the fly creation of composite solutions. Automated negotiation among Web services provides an effective way for the services to bargain for their optimal customizations and allows the discovery of overlooked potential...
In this paper, we propose a technique for service-oriented architectures (SOA) to dynamically evaluate the performance of Web services based on their previous history, and user requirements. The likelihood of fault occurrence is then used to create recovery plans. The ‘best’ recovery plan is then chosen to be either executed immediately, or saved for a later execution. We assess the overall system...
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