摘要
文章介绍了金融投资决策中的指标选择方法,提出了一种基于粗集数据分析系统RSDA(Rough Set Data Analysis)的指标子集选择算法。该算法利用信息论的熵函数,根据MDL原理构造评价函数,在全部属性集合中寻找最优属性子集。
In this paper we introduced a method of feature subset selection in portfolio investment decision system. We also give a feature subset selection algorithm based on RSDA(Rough Set Data Analysis) system. This algorithm uses the concept of entropy and MDLP to define the evaluation function of a feature subset and searches the best feature subset among all features using this function.
出处
《计算机工程》
EI
CAS
CSCD
北大核心
2000年第12期56-58,共3页
Computer Engineering
关键词
投资组合分析
指标选择
数据仓库
机器学习
Feature selection
Rough set
Minimum description length principle
Machine learning