求解逻辑回归问题的多层邻近拟牛顿算法.pdf

文档介绍：第 卷 第 期 桂 林 电 子 科 技 大 学 学 报
gressionproblems

XIAOBin,ZHOUZhijuan,HU Qingjie

(SchoolofMathematicsandComputingScience,GuilinUniversityofElectronicTechnology,Guilin541004,China)

Abstract
:Ai m ingatthel ogisticreg ressionproble m,basedo n theideao fm ulti-l evel optimizati onan dproxima lqua si-Newton
al gorithm ,amul ti-le velp roxi malquasi- Newtona lgor ithmis prop ose dtosolve thisproblem .The algorithm fir stcons tructs
acoars emo del ,and the nthe algo rithmexecute stheco arse stepsorp roxim al quasi-New tonstepsthro ughthecoarse con di-
dinord erto save the computations costs,thealgo rithm give sareason ablese cond-o rder app roximatio nt othe
objec tiv efuncti ona ndsolv esthesub- -
tivei nsolvingthel ogisticregr essionpro blems.
Keywords