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For the task scheduling problem in the heterogeneous grid environment, a security benefit function is constructed by considering the task scheduling demand for confidentiality, integrity and authenticity. Then, according to the history behavior of grid resource nodes, node's credibility dynamic evaluation method is proposed by using the weighted function. Based on these, a new grid task security scheduling...
For solving tasks scheduling problem under heterogeneous grid environment, a new constrained multiobjective grid tasks scheduling model is proposed. Firstly, a security benefit function is constructed under considering the inherent security of grid nodes; secondly, a node's reputation dynamic evaluation model is constructed based on the behavior of grid nodes. In order to solve the model, the multi-objective...
For a class of real-time scheduling problems with the time constraints, both the time constraints and the security performance are considered in this paper. Firstly, a security-efficiency function is proposed, and a new security-driven task scheduling model is constructed based on the function. Secondly, a new selection operator is proposed, where some individuals not satisfying time constraints but...
In this paper, data hiding on 3D meshes is investigated based on dither modulation. We present two algorithms to embed the data imperceptibly into polygonal meshes by modulating the distance from the mesh surface to mesh centroid and the one from a vertex to the centroid of its traversed neighbors, respectively. In these two algorithms, the embedded data are invariant to rotation, uniformly scaling...
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