山东大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (3): 81-87.doi: 10.6040/j.issn.1672-3961.0.2017.412
陈嘉杰,王金凤*
CHEN Jiajie, WANG Jinfeng*
摘要: 为了提高Choquet模糊积分模糊测度的搜索效率,提出改进的蚁群算法求解模型。根据特征数量构建Choquet模糊积分模型,搜索过程中对每只蚂蚁按状态转移概率进行全局搜索或局部搜索,迭代搜索最优解,并由Fisher判别进行分类。试验使用3组癌症基因数据集,利用R语言的Bioconductor工具箱进行数据预处理,并分析对比新模型和主流算法的分类效果。结果表明:在DLBCL数据集和Colon数据集中,基于蚁群算法的Choquet模糊积分得到最好的分类效果;在Prostate数据集中,虽然和基于遗传算法的Choquet模糊积分分类效果接近,但是蚁群算法仍然很快收敛,改进的蚁群算法可以作为求解模糊测度的快速方法。
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