Evaluating genes without expression trees construction

Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (14): 80-84.

• 理论研究 • Previous Articles Next Articles

Evaluating genes without expression trees construction

LI Chuan¹,TANG Chang-jie¹,CHEN Yu¹,DAI Shu-cheng¹,QIU Jiang-tao¹,LUO Qian¹,ZHU Jun²

1.School of Computer,Sichuan University，Chengdu 610065，China
2.Birth Defects Supervising Centre，Chengdu 610065，China

Received:2008-01-18 Revised:2008-03-25 Online:2008-05-11 Published:2008-05-11
Contact: LI Chuan

基因的无树评估

李川¹,唐常杰¹,陈瑜¹,代术成¹,邱江涛¹,罗谦¹,朱军²

1.四川大学计算机学院，成都 610065
2.中国出生缺陷监测中心,成都 610065

通讯作者: 李川

Abstract

Abstract: Traditional ET(Expression Tree)-based GEP has a major performance defect:Repetitive ET traverses and calculations.This paper proposes a novel model called Scale-Based GEP to solve the problemVariable matrix is used to avoid repetitive calculations and traversing in ET-based gene evaluation.Experiments show that Scalebased evaluation outperforms ET-based method 3~5 times constantly.

Key words: data mining, gene expression programming, Scale-based gene expression

摘要： 传统基于表达式树ET的基因评估从性能角度讲主要缺点是：重复遍历表达式树和进行大量重复计算。提出基于Scale的基因评估。变量矩阵用来避免基因评估中的重复计算。实验表明，在绝大多数数据分布下和参数选择情况下：基于Scale的基因评估较基于 ET 的基因评估快 3~5 倍。

关键词: 数据挖掘, 基因表达式编程, 基于Scale的基因表达

LI Chuan¹,TANG Chang-jie¹,CHEN Yu¹,DAI Shu-cheng¹,QIU Jiang-tao¹,LUO Qian¹,ZHU Jun². Evaluating genes without expression trees construction[J]. Computer Engineering and Applications, 2008, 44(14): 80-84.

李川¹,唐常杰¹,陈瑜¹,代术成¹,邱江涛¹,罗谦¹,朱军². 基因的无树评估[J]. 计算机工程与应用, 2008, 44(14): 80-84.

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Evaluating genes without expression trees construction

基因的无树评估

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