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Web services bring more conveniences for users and developers. However, it makes user face the problem of service information explosion. The personalized service recommendation solves the problem. This paper proposes a method to predicting the system reliability which bases on user context information in mobile computing environment. The method construct user behavior model by formatting user location...
Context-Aware Recommender System aims to recommend items not only similar to those already rated with the highest score, but also that could combine the contextual information with the recommendation process. Existing context-aware Web services recommendation methods directly use context as a "filter" to discard services that may conflict with the current user's preference. However, the...
Additively to the emergence of wireless networking, high technology and reliability of mobile devices have enabled the widespread use of mobile computing. Currently, this last is in vogue and booming. Today, the combination of mobile networks with Web Services called "Mobile Web Service", opening a promising horizon for the economy. They offer (Mobile Web Service) new personalized services...
With the development of service-oriented computing environments, QoS-aware service selection has been a more and more important research issue. In service composition environments, QoS attributes of atomic services are always aggregated for computing the QoS of the composite services, which has been reported in many previous studies. However, there are situations that some QoS attributes cannot be...
Service based business applications are built through the interaction of Web services. The behaviours of these Web services can be described by service protocols representing acceptable sequences of message exchanges. In order to guarantee the correct interaction between Web services, one can check the compatibility of their service protocols. Recent research efforts address the impact of non-functional...
In web service based dynamic E-commerce applications, inclusion of context-aware features in the delivered services is an important approach to improve the efficiency of the dialogues between users and systems. In this paper, we explore a novel context-aware web service composition model for dynamic E-commerce applications, aims to effectively process and take advantage of contexts and facilitate...
Rich context available creates varied applications on mobile device and makes end-user possible to customize personalized context-aware application. Meanwhile, problems arise that how to realize the service composition and present the service easy for end-user programming. In this paper, we refer to the notion of service component, design and implement a Context-Source Service Composition Prototype...
Service computing aims to provide IT and computing resources to users in a way that it simply serves them. However, many issues remain in, such as portability, interoperability, and heterogeneity of diverse services, in addition to service modeling, creation, deployment, discovery, recommendation, composition, and delivery, in order to provide a service that best fits user needs and contexts at the...
The tourism services are vital for the economic health of both developed and developing countries. Although the tourism services in a mobile environment have a critical role in creating tourist satisfaction, they are neither a uniform group, nor able to give consistently high service quality. Indeed they have significantly different platforms and a variety of heterogeneous service providers which...
Data as a Service (DaaS) emerges as a new trend for exchanging data between independent data owners and data users so that data can be acquired on demand through standard protocols across heterogeneous platforms. It is usually a user-interactive and iterative process to compose the services into various data-driven business scenarios of data acquisition, analysis, and other processing activities....
One of the major challenges faced by the Web services platform is how to compose a more appropriate new value added web service according to the user's requirements and preferences, and adapt it at runtime. To this end, we suggest in this paper a QoS-oriented approach to build more efficient composite web services and personalize this composition on-the-fly by taking into account user context, requirements,...
The introduction of mobile clients and context-aware behaviors into Web Service compositions may generate faults and inconsistencies. We introduce an extension of a composition model where context-awareness is made explicit and a number of correctness properties are verifiable. In particular, our extended model enables the verification of properties commonly used to validate context dependent applications...
Current information service systems are built to serve all users, independent of the special needs of any individual user in different situations. Personalized information service aims at improving the retrieval process by taking into account the particular interests of individual users. However, not all user preferences are relevant in all situations, and they should be understood in context with...
Recent advances in wireless networks and mobile devices have brought about new scenes for the provision of services to end-users. Besides traditional services, new ones may be provided that transparently adjust and adapt to the user context. The user would have more choice and flexibility if, besides using the services, he could also compose his own services in an ad-hoc way. This paper presents iCas,...
Service orientation is an approach to developing software applications by means of service orchestration and choreography. In such applications, a service interacts with not only other services but also its embedding environment via contexts. However, it is still unclear about how to develop effective testing techniques for service orchestration and choreography, particularly in the presence of contexts...
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