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There are many different index structures for servicerepositories, such as sequential index, inverted index and multilevelindices that includes three deployments. Different servicesets maybe have different characteristics that may affect performancefrom different aspects. What characteristic could affectretrieval performance? How to select an optimal storage structurefor a given service set? To address...
The location problem faced to route-like demand attracted more and more attention accompanying the rapid development of railway construction. In most location literatures, facility location problems meeting spot-demand are fully involved, while its counterpart is rarely mentioned. Even if referring to route-like demand, most literatures disperse it into spot-demand. This paper considers a facility...
A real-time simulating method based on smoothed particle Hydrodynamics (SPH) for water and underwater body interaction is proposed in this paper. The force analysis and state update models are established for underwater body and water particles, and a collision detecting method between particles and obstacles is also proposed. The water surface is extracted from water particles based on Marching Cubes...
The growth and popularity of Web services make personalized recommendation as one of the most important research issues in service computing, which can help service users find the optimal Web services from large functionally equivalent service candidates according to the Quality-of-Service (QoS). Although significant works have been done on improving prediction accuracy by employing collaborative...
Alongside the healthy development of the Cloud-based technologies across various application deployments, their associated energy consumptions incurred by the excess usage of Information and Communication Technology (ICT) resources, is one of the serious concerns demanding effective solutions with immediate effect. Effective auto scaling of the Cloud resources in accordance to the incoming user demand...
When computing integral curves and integral surfaces for large-scale unsteady flow fields, a major bottleneck is the widening gap between data access demands and the available bandwidth (both I/O and in-memory). In this work, we explore a novel advection-based scheme to manage flow field data for both efficiency and scalability. The key is to first partition flow field into blocklets (e.g. cells or...
Peer-to-Peer (P2P) networking is beneficial when removing a centralized server. On the other hand, new mechanisms are required to compensate for the central authority, especially for network security and dependability. In this paper, we propose a new fuzzy reputation (Fuzzy-Rep) model to improve security and dependability of P2P e-commerce. The model employs fuzzy logic inference rules to assess transactions...
Many users often perform searches in unfamiliar domains and these search experiences are often unsatisfactory since the users are lack of domain-specific knowledge. In this paper, we present a concept based retrieval method to deal with domain-specific searches. Three groups of domain-specific concepts are extracted from the online resource. The following experiments on three domain-specific test...
Network enabled capability (NEC) is the U.K. Ministry of Defencepsilas response to the quickly changing conflict environment in which its forces must operate. In NEC, systems need to be integrated in context, to assist in human activity and provide dependable inter-operation. In order to provide reliable and sustainable military capability, fast paced changes must be conducted without halting the...
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