一种基于本体KNN的分布式缓存数据交换策略

Distributed Caching Strategy for Data Exchange Program Based on Ontology and KNN Algorithm

以国家开放大学教务管理系统为例,以减少数据资源获取的时间开销以及提高数据质量作为目标,提出了一种基于本体KNN的分布式缓存数据交换策略,用于解决分布式系统在不同节点之间进行数据交换时产生的性能优化问题。仿真实验结果表明,该策略具有较为出色的优化访问性能,可以实现数据交换过程的进一步优化,进而提升系统的整体性能,具有一定的实用价值。

This paper gave an example of the management system of Open University of China,and proposed a distributed cache strategy for data exchange program based on ontology and KNN algorithm to solve the optimization problems in access time,cost and resources quality when distributed system exchanges data between the different nodes.The correctness and effectiveness of the presented strategy is demonstrated by a simulation application designed in the paper,and results show that the strategy can improve the efficiency of data exchanging in distributed system.