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Currently, people round the world daily use the Internet to access various services, such as, email and online shopping. However, the behavior-based tracking attacks have posed a considerable threat to users' privacy. Relying on characteristic patterns within the Internet activities, this attack can link a user's multiple sessions which are composed of a period of user's traffic. Once a user's personally...
The pre-computation of data cubes is critical to improve the response time of On-Line Analytical Processing (OLAP) system. However, as the size of data grows, the time it takes to construct data cubes becomes a significant performance bottleneck. Therefore, we need the parallel pre-computation approach to further improve the performance of OLAP. Current parallel approaches can be grouped into two...
A fundamental problem that confronts SOA-based CSCW applications is the efficient and timely QoS information obtainment of component services. However, this issue has largely been overlooked. This paper presents a P2P based publish/subscribe service to disseminate new revised QoS information reliably and efficiently. Specialized rendezvous points and a replica mechanism are introduced to reduce the...
The widely use of anonymous communication systems, which aim at protecting the privacy of Internet users, has posed significant challenges to the capability of tracing cyber crimes. To address the problems of anonymous abuse, Yu et al. recently developed a new class of flow marking technique for invisible traceback based on direct sequence spread spectrum (DSSS), utilizing a pseudo-noise (PN) code...
Traditional network is surprisingly fragile and difficult to manage. Yet the current solution of substantial manual configuration makes traditional network management expensive and error-prone. To solve this problem, a network control programmable platform is constructed by in this paper. The platform is consisted of a namespace, a network control primitive library, network event library, a network-wide...
Replica value determination plays an important role in the problem of replication in data grid, since only replicating high value replicas can improve the replication efficiency. However, replica value determination methods applied now do not perform well, because they cannot well adapt to the changes of file access patterns. We address this problem by introducing a new replica value determination...
As it is very difficult for learners to find the most proper contents according to their preferences from massive resources in U-Learning environment, the resource recommendation mechanism as a core component must be introduced. On the other hand, traditional recommendation mechanisms have been widely studied in e-business and personalized service fields in which most of them only take into account...
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