有限秩多任务核的若干性质  

Several Properties of Finite Rank Multi-task Kernel

作　　者：刘建强[1] 

机构地区：[1]宁夏大学数学计算机学院,银川750021

出　　处：《长春大学学报》2015年第4期41-44,共4页Journal of Changchun University

基　　金：宁夏省自然基金项目(NZ12116)

摘　　要：多任务核的性质研究较少。应用多任务核的刻画定理,给出多任务核的若干性质,主要包括多任务核空间结构、沿对角线平移性质、多任务核的Kronecker乘积相关的几个性质,为多任务核学习实验中选择多任务核提供必要的方法和依据。There is less research on the properties of multi-task kernel. Some properties of multi-task kernel are given by applying the characterizing theorem,including the spatial structure,shifting along diagonal lines and several properties related to Kronecker product,which provides necessary methods and basis for selecting multi-task kernel in learning and experiments.

关 键 词：多任务核 KRONECKER乘积 半正定 

分 类 号：O177.92[理学—数学]