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In order to naturally incorporate the information provided by Web services into the data integration systems, we propose a novel model, uniform query, to uniformly describe the data query/view and the semantic of information-providing Web services. With the proper matching algorithm we have implemented a prototype in which Web services act as normal data sources (e.g. RDF datasets), and data queries...
Inspired by the success of Web service technologies for the development and deployment of IT services, the telecommunications R&D community starts adapting and developing similar service delivery platforms, making use of existing basic services as building blocks to orchestrate new value-added complex services in a rapid and flexible way to catch the fast and dynamic changing market. In this paper,...
Web services have led a revolution of Internet technology architecture by their platform-independence, language- independence and other characters. But traditional Web service architecture is based on "Client/Server" model, where server is always providing service reactively. Software agents are now increasingly used in commercial applications to solve complex engineering problems, for their...
In this study, a new interacting multiple model unscented particle filter (IMMUPF) for tracking ground maneuvering targets is presented. A bank of unscented particle filters is used in the interacting multiple model (IMM) framework for updating the state of moving target. Two groups of multiple model filters: IMM-based filters and particle-based multiple model filters, are compared for their capability...
Traditional web service orchestration is always implemented by business process work flow or I/O matching. But this method will invoke some problems including too many composite results, inefficiency, and most important the composition is static for service orchestration is based on service concerns, but not taking account of service status. Based on Aspect-Oriented analysis, service concerns are...
With the wide application of Web services, its performance has caused the extensive concern and becomes one of the key factors of determining whether it is widely applied further. Based on the idea of differentiating Web services, the paper presents a SLA-based Web services performance guarantee model to improve Web services runtime environment, and expatiates on the key techniques of realizing the...
A new method for maneuvering target tracking using "current" statistical model is presented. When tracked target maneuver occurs, "current" statistical model can detect the maneuver immediately and estimate the maneuver value accurately, and then the tracking filter will be compensated correctly and duly by estimated maneuver value. Based on this model, an interacting multiple...
Goal Web services description languages and service discovery algorithms are two keys to deal with the service discovery problem. Based on the analysis of the current Web services description languages, the paper designs a goal Web services description ontology which can depict the functional features, the performance features and the semantic features of Web services. On the principle of enhancing...
With the development of Web service, it is critical to compose existing Web services dynamically based on the need of users. This paper analyzes semantic association between services and proposes a dynamic Web service composition approach based on dynamic semantic association between services (DSAC). DSAC discovers the dynamic semantic of services when they are executing, integrates IO interface-match...
A new method combining the protocol conversion methodology and the Petri nets theory is proposed to study application layer protocol conversion. According to the procedure proposed by the protocol conversion methodology, the click-to-dial (CTD) service in the Internet intelligent network (IIN) model is analyzed. From the modeling experiences of CTD service with Petri nets, universal coupling criteria...
China has fully embraced the remarkable growth and unprecedented penetration of mobile services, and has become the world's largest mobile cellular market. TD-SCDMA was proposed by the China Wireless Technology Standard (CWTS) Group in 1998, approved as one of the 3G standards by ITU in May 2000, and joined 3GPP in March 2001. This has been a major effort by China to advance its mobile communication...
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