基于EM算法的线性拟合问题研究  

The Research of Linear Fit Using EM Algorithm

作　　者：王礼想[1] 

机构地区：[1]安庆师范学院,安徽安庆246001

出　　处：《廊坊师范学院学报（自然科学版）》2013年第4期21-23,共3页Journal of Langfang Normal University(Natural Science Edition)

基　　金：安庆师范学院校青年科研基金项目(KJ201108)

摘　　要：根据实验数据寻找函数关系近似表达式是许多工程经常遇到的问题,其中用直线拟合已知数据最为常见。文中给出的EM算法为线性拟合提出了一种新算法,特别解决了直线条数不确定线性拟合问题。Using the experimental data to find the function of variables is often encountered in many engineering problems. The most common known problem is the linear fit of data points. This paper presents a new algorithm for the linear fit on the base of EM algorithm which in particular solves the problem of uncertain linear fit.

关 键 词：EM算法 线性拟合 权重 最小二乘法 

分 类 号：O241.5[理学—计算数学]