一种基于双边拍卖的复制优化策略

提出了基于连续双边拍卖协议的复制优化策略，解决数据网格中复制优化策略难以适应数据高度自治性和动态性的问题。首先给出了双边拍卖机制的实现模型，接着给出了分布式的连续双边拍卖协议算法和基于零智慧增强学习的投标策略，最后使用Optorsim对模型和复制优化策略进行仿真。实验结果表明，该复制优化策略与基于单边拍卖的优化策略相比，具有较低的任务运行时间和网络有效占用率,较好的存储和计算资源利用率。

Replica optimisation strategy based on continuous double auction

Data replication is a key issue and an optimization technique of achieving better access times to data and fault tolerance.A replication strategy based on a double auction mechanism was discussed to solve the problem that the replication strategy cannot be adapted to the high autonomy and dynamics of data.Firstly,a double auction model was described.Secondly, a continuous double auction protocol's implementation based on the distributed Continuous Double Auction Protocol(CDA) and Zero Intelligence Plus(ZIP) bid strategy were given.Finally,simulation with Optorsim was carried out to the replication strategy and model. The experiment results show that,compared with the one-side auction,the proposed model and strategy provide less operation time and higher network use rate, better Computing Elements(CE) and Storage Elements(SE) utilization ratio.