摘要
本文提出一种自整定权值的融合方法.该方法使用混淆矩阵来衡量分类器性能,并根据分类器输出情况自适应地为各分类器赋予权值,可靠的决策结果获得较大的权值,从而提高决策模板的可信度.对易于被错误分类的样本,在利用其与决策模板的相似性信息的同时,结合它周围的训练样本信息做出判断.通过与DT方法在KDD’99入侵检测数据集和UCI数据库中的8个数据集上的实验对比,表明本文方法具有更好的分类性能.
A fusion method with self-adjusting weights is proposed, which measures the classifier performance by the confusion matrix,and self-adaptively assigns weights to classifiers based on their outputs. Bigger weights are assigned to reliable outputs so that the decision templates are more credible. For a sample which is prone to be misclassified,besides the similarity between it and the decision templates, the information of the training samples around it are included to make a decision. Experiments were done on the KDD＇ 99 intrusion detection dataset and 8 datasets from the database UCI to compare the proposed method with the DT method. The experimental results show the presented method has a better classification oerformance.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2009年第11期2604-2608,F0003,共6页
Acta Electronica Sinica
基金
国家自然科学基金(No.60675006)
"十一五"国家科技支撑计划(No.2006BAI03A09)
河南省教育厅自然科学研究计划(No.2008A520010)
关键词
多分类器系统
决策融合
混淆矩阵
决策模板
multiple classifier systems
decision fusion
confusion matrix
decision template
