The number of hours of assembly and maintenance required on-orbit to construct and service space-based platforms has highlighted the important role that space robotics must play. Tasks that robots will perform on a future space platform will include assembly, repair, maintenance, and service. While a number of these anticipated tasks may be accomplished by xed-base, single end-e ector manipulat...

Workstations typically depend on remote servers accessed over a network for such services as mail, printing, storing files, booting, and time. The availability of these remote services has a major impact on the usability of the workstation. Availability can be increased by replicating the servers. In the Echo distributed file system at DEC SRC, two different replication techniques are employed,...

Service Level Objectives (SLOs) describe the desired behavior of a service. They present agreed-upon target behaviors (e.g. capacity, performance, availability, cost) that the clients of a service can expect, and that the service provider can manage against. Both clients and service providers need a way to monitor how a service is doing against its SLOs, and display the result of that monitorin...

Improving dynamic feature of service composition is a vital and challenging stage in web service application. With the increasing of service number, it is hard to balance the flexibility and verification very well in dynamic and complex environment. The previous methods compare two services by their own features. These methods are useful and concise to find substitutes for unavailable services,...

Recent advances in middleware technologies propose semantics-aware tuplespaces as an instrument for coping with the requirements of scalability, heterogeneity and dynamism arising in highly distributed environments such as the Web or the emerging Semantic Web. In particular, Semantic Web services have inherited the Web service communication model, which is based on synchronous message exchange,...

This paper addresses adult lifelong learners, i.e., persons interested in learning or compelled to learn during their working life but not able to, or not interested in participating in formal learning. These learners are motivated and self-aware enough to self-direct their learning, are presumed to be novices with respect to the needed knowledge and have a limited technological uptake. This pa...

This thesis will address how to enable Triple Space Computing as a communication paradigm for Semantic Web Services. Currently, Semantic Web Services are following a message based communication paradigm. Triple Space Computing is envisioned as communication and coordination paradigm for Semantic Web Services which is an extension of tuple space computing to support RDF and then use it for commu...

Nowadays high fuzzy utility based pattern mining is an emerging topic in data mining. It refers to discover all patterns having a high utility meeting a user-specified minimum high utility threshold. It comprises extracting patterns which are highly accessed in mobile web service sequences. Different from the traditional fuzzy approach, high fuzzy utility mining considers not only counts of mob...