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Cloud computing has become a popular computing paradigm in which virtualized and scalable resources are consolidated to provide services over Internet. However, the resource capability of a single cloud is generally limited, and some applications often require various cloud centers over Internet to deliver services together. Therefore, a Virtual Organization (VO) will be a promising approach to integrate...
In the area of device collaboration system, there are a large number of devices which needed to be collaborated with other devices, and the collaboration process is complex. It is significative to reduce the complexity of modeling a device collaboration process. In this paper, a device collaboration process model is proposed, which includes four basic structures. By use of device collaboration net,...
Aiming at the large-scale and dynamics of large-scale device collaboration system, the paper presents a QoS meta-model of large-scale device collaboration, which contains QoS of single device resource, compound QoS of multiple device resource and the constrain relation among QoS. A prototype system based on the QoS meta-model is designed and implemented. Finally, simulation experiments are done. It...
Information on the ratings of several features of items can be deployed to improve the quality of recommendations in recommender systems by incorporating them into similarity calculation between any two users or two items. However, the incremental information of these features has important impacts on recommender systems. For example, the complexity of similarity calculation is increased and more...
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