修正的多模判决分层数据库层间偏转可靠性估计  

Modified Multi Decision Hierarchical Database Layer Deflection Reliability Estimation

作　　者：杨晓庆[1] 

机构地区：[1]河南建筑职业技术学院信息工程系,郑州450007

出　　处：《科技通报》2015年第2期170-172,共3页Bulletin of Science and Technology

基　　金：河南省教育厅教育成果奖<信息安全产品配置与应用>之VPN篇--概念与原理二等奖(豫教[2014]14404号)

摘　　要：对于层次式的分层数据库访问中,需要对分层数据库的层间相位偏转进行可靠估计,提高数据结构的组织性能和精确数据挖掘能力。传统方法的相位偏转估计算法采用单模判决,数据库中海量信息流的分布式高维矢量特征不能得到有效应用,导致估计精度不高。提出一种修正的多模判决分层数据库层间偏转可靠性估计算法,构建分层数据库访问执行网络交互模型与信号模型,完成修正的多模判决控制,定义模判决多模算法代价函数,通过分层数据库分层间位移,构建层间偏转的反馈滤波器,完成分层数据库层间偏转可靠性估计。仿真实验表明,该算法能有效估计出分层数据库的层间偏转,收敛性比传统方法优越,估计精度可靠,保证了算法和系统运行的实时性。The hierarchical database access is researched, a hierarchical database layer phase deflection are reliable estimated to improve organizational performance and data structure mining ability. The traditional use single mode decision, in high dimensional vector, a mass of information flow in the database is not used effectively, which leading to the estimation accuracy is not high. This paper proposes a modified multi decision hierarchical database layer deflection reliability estimation algorithm, hierarchical database access of network interactive design and signal model is realized, complete the multimode decision correction control, define the mode decision algorithm cost function by multimode, hierarchical data base layer displacement, feedback filter is constructed for the interlayer deflection, the hierarchical database layer the deflection reliability estimation is completed. Simulation results show that, the algorithm can effectively estimate the hierarchical database layer deflection, convergence is superior to the traditional method, the estimation accuracy is reliable, it ensures the real-time of algorithm and system operation.

关 键 词：多模判决 数据库 相位偏转 参数估计 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]