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Numerous reports have indicated the severity of fake reviews (i.e., spam) posted to various e-Commerce or opinion sharing Web sites. Nevertheless, very few studies have been conducted to examine the trustworthiness of online consumer reviews because of the lack of an effective computational methodology. Unlike other kinds of Web spam, untruthful reviews could just look like other legitimate reviews...
Recently, the trend of Cloud Computing has become a significant impact for IT departments and forms many innovative services by virtualization. Virtual systems have been used and identified on services of different fields nowadays. IT hardware manufacturers such as HP, IBM, Dell, etc..., put a large amount of investments on enterprise server products to support the virtualization environment. Service...
Cloud computing often uses a multi-tenant architecture where tenants share application and system software. Request prioritization presents a challenge in this architecture. Tenant may have individual (local) prioritization requirements, and these requirements can be different for different tenants. The shared application must use a global priority scheme for requests from all the tenants. This paper...
Automatic service composition is an important problem in service computing. Existing works on service composition assume different representation models with various expressiveness for component services as well as for the composition logic. This has made understanding these composition approaches and their applications difficult. This paper presents a novel language-based formal framework that acts...
In C2C e-commerce environment it is possible and indeed quite common to deal with unknown sellers, whose reliability are unknown. Reputation system is a popular technique currently used for providing a global quality score of sellers to consumers. However, such global information is far enough for clients to choose the most qualified products. In the real word, we always ask our trusted friends for...
Service-Oriented Architecture (SOA) provides a flexible architecture for service composition. Service composition can be integrated by atomic Web services developed independently by their providers. With increasing number of alternative services that implement similar functionality but provide different non-functional (QoS) characteristics, service composition becomes a service selection problem....
With ever-growing applications of diverse requirements over Internet, traditional inclusion of all applications into the application layer becomes difficult and impractical. Open Network Application Service/Reference Model (ONAS/RM) proposed by SC-Netcom Lab suggests a service-oriented Network Application Service Interface (NASI) be explicitly defined to clearly set the boundary between real applications...
Workflow management systems are widely adopted for implementing business processes. Archival workflow is a precise representation of the archival process, reflecting the formal coordination mechanisms between archival activities and manual processes with respect to the specific requirements of the local governing body. Understanding key performance indicators of archival processes is considered as...
Since cloud computing is a fast-developing business area, many companies seek a more adaptable business model responding to the changing market environment. We propose a value net based cloud computing model after the in-depth study on service delivery and value creation process in cloud computing as well as the current research findings of the value net theory and business model. Furthermore, the...
In the retail service, knowledge management with point of sales (POS) data mining is integral to maintaining and improving productivity. The present paper describes a method of computational customer behavior modeling based on real datasets, and we demonstrate some knowledge extractions from the model. The model is constructed by Bayesian network based on a large-scale POS dataset that incorporates...
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