兼顾正确率和差异性的自适应集成算法及应用  

Application of adaptive ensemble algorithm based on correctness and diversity

作　　者：罗建宏[1,2] 陈德钊[1] 

机构地区：[1]浙江大学化学工程与生物工程学系,浙江杭州310027 [2]浙江理工大学管理科学与工程系,浙江杭州310018

出　　处：《浙江大学学报（工学版）》2011年第3期557-562,共6页Journal of Zhejiang University：Engineering Science

基　　金：国家自然科学基金资助项目(20276063)

摘　　要：针对如何从集成分类器中合理地筛选个体以提高集成学习的效果这一难题,提出了新的集成算法.该算法基于知识粒原理设计一种兼顾正确率和差异性的筛选指标,以便从训练的一批分类器中快速地选择个体组建成库;以自适应方式,针对每一类别生成特定的集成分类器,这些集成分类器间存在包容性,由此构建的集成分类器组将占用较少的计算资源,并将以自适应方式进行分类决策.对多种模式分类问题的试验结果表明:与其他集成方法相比,该集成算法更为高效,稳定性更好,具有较强的泛化性能.A new ensemble algorithm was proposed.to select individual classifier reasonably from ensemble classifier in order to improve the effect of ensemble learning.Designs a selective index giving consideration to correctness and diversity based on knowledge granular principle,in order to fast select some individuals from the trained classifiers to build ＇classifiers space＇.Then each specific ensemble classifier is generated for each class by adaptive strategy,and these ensemble classifiers are inclusive,so the group of ensemble classifiers would cost little computation resource.Then make classification decision by adaptive strategy.Experiments conducted on some typical classification problems demonstrate that compared to the other ensemble methods,this algorithm is higher efficient,more stable and has stronger generalization performance.

关 键 词：集成分类器 集成学习 知识粒 正确率 差异性 自适应集成算法 

分 类 号：TP181[自动化与计算机技术—控制理论与控制工程]