A Time-Frame Based Trust Model for Grids

摘要

A Grid is a virtual resource framework which provides the ability to access, utilize, and manage a variety of heterogeneous resources among multiple domains. However, selecting appropriate resources within such a distributed Grid environment is a complex and difficult task. In recent years, trust models have been proposed, but most of them do not deal with the temporal issue of trust. In this paper, we aim to extend the trust model with a novel data structure called Time-Frame which can store temporal information regard-ing to the trust involved. With the Time-Frame structure, we can evaluate the resources accurately by means of the available temporal information.