数据依赖与异常数据分离-应用

摘要

数据在传递过程中,经常出现两类现象:一些被传递的数据在传递中发生部分数据元丢失;一些未知的数据元入侵到被传递的数据内.这两类现象使得被传递的数据出现"异常".利用一个新的数学模型,给出两类现象的理论研究与应用.这个新的数学模型是P-集合(packet sets),P-集合是由内P-集合XF(internal packet set XF)与外P-集合XF(outer packet set XF)构成的集合对;或者,(XF,XF)是P-集合.给出数据的(F)-依赖、F-依赖的概念与特性,提出数据的依赖定理,给出异常数据被分离的应用.数据依赖是P-集合诸多应用特性之一.P-集合是研究动态数据系统的一个新理论与新方法.%Two kinds of phenomenon often appear in data transference: some data elements are lost and some unknown data elements enter into original data. The data was changed into abnormal data due to such phenomena. By using a new mathematical model, theoretical research and application respect to two phenomena were given. This new model is called P-sets(packet sets). P-sets is a set pair which is composed by internal P-set XF (internal packet set XF) and outer P-set XF (outer packet set XF) ;or (XF ,XF )is called P-sets. In this paper, the concepts and characteristics of (F)-dependence and F-dependence were presented. The dependence theorem and the application of abnormal data separation were given.Data dependence is one of application characteristics and it is a new theory and method in dealing with dynamic data system.