山东大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (1): 22-27.doi: 10.6040/j.issn.1672-3961.1.2016.060
魏波1,2,张文生1,李元香3,夏学文2,吕敬钦2
WEI Bo1,2, ZHANG Wensheng1, LI Yuanxiang3, XIA Xuewen2, LYU Jingqin2
摘要: 为了有效处理海量、高维、稀疏的大数据,提高对数据的分类效率,提出一种基于L1准则稀疏性原理的在线学习算法(a sparse online learning algorithm for selection feature, SFSOL)。运用在线机器学习算法框架,对高维流式数据的特征进行新颖的“取整”处理,加大数据特征稀疏性的同时增强了阀值范围内部分特征的值,极大地提高了对稀疏数据分类的效果。利用公开的数据集对SFSOL算法的性能进行分析,并将该算法与其它3种稀疏在线学习算法的性能进行比较,试验结果表明提出的SFSOL算法对高维稀疏数据分类的准确性更高。
中图分类号:
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