统计研究 ›› 2008, Vol. 25 ›› Issue (8): 74-78.

• 论文 • 上一篇    下一篇

模糊数据的回归模型结构分析

李竹渝 张成   

  1. 四川大学数学学院
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-08-15 发布日期:2008-08-15

Structure Analysis of Regression Model with Fuzzy Data

Li Zhuyu & Zhang Cheng   

  • Received:1900-01-01 Revised:1900-01-01 Online:2008-08-15 Published:2008-08-15

摘要: 本文在给出对称三角模糊数样本基础上,提出模糊数据回归分析模型的一般结构。在使用线性规划LP方法进行模糊回归系数估计时,根据模糊集合的择近原则,给出了利用样本平均贴近度评价模型拟合效果的一个准则。通过实例计算,比较了模糊样本回归模型未知参数估计的FLP方法和FLS 方法。

关键词: 模糊数据, 回归分析, 样本平均贴近度

Abstract: In this paper, we propose a fuzzy regression model, based on symmetric triangular fuzzy sample. In the process of estimating the regression parameters with linear programming (LP) method, we give a principle of evaluating the fitness of the model, using the sample average of the closeness. This principle is developed on the basis of the closeness principle of fuzzy sets. Through an example, we compare two methods of estimating the unknown parameters of the regression model with fuzzy sample, fuzzy LP method and fuzzy LS method.


 

Key words: Fuzzy data, Regression analysis, Sample average of the closeness