计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (9): 23-24.

• 博士论坛 • 上一篇    下一篇

基于预测能力的连续贝叶斯网络结构学习

董立岩 苑森淼 刘光远 李永丽   

  1. 吉林大学计算机科学与技术学院 吉林大学计算机科学与技术学院 吉林大学 通信工程学院 东北师范大学计算机学院
  • 收稿日期:2006-12-01 修回日期:1900-01-01 出版日期:2007-03-21 发布日期:2007-03-21
  • 通讯作者: 董立岩

Learning of Continuous Bayesian Networks Structure from Data Set

  • Received:2006-12-01 Revised:1900-01-01 Online:2007-03-21 Published:2007-03-21

摘要: 通过对连续随机变量之间预测能力及其计算方法的讨论,提出基于预测能力的连续贝叶斯网络结构学习方法。该方法包括两个步骤,每个步骤都伴随环路检验。首先建立初始贝叶斯网络结构,其次调整初始贝叶斯网络结构,包括增加丢失的弧、删除多余的弧及调整弧的方。同时使用模拟数据进行了对比实验。

关键词: 连续贝叶斯网络, 预测能力, 最小切割集

Abstract: In this paper, the definition of forecasting ability and its calculational method are presented between two continuous variables. A method of learning continuous Bayesian networks structure from data set based on forecasting ability is developed. This method is made up of two parts. Each part is combined with checking a cyclic route in a directed graph. firstly, an elementary Bayesian network structure is set up. Secondly, this elementary Bayesian network structure is regulated ,including to increase the losed arcs, to delete superfluous arcs and to regulate direction of arcs. The experiment is made by using simulant data and the experimental results are shown by the means of contrasting.

Key words: continuous Bayesian network, forecasting ability, minimum d-separating set