当前位置>主页 > 期刊在线 > 信息技术 >

信息技术

基于L2正则化的逻辑回归求解设计
黄雄鹏
(贵州师范大学国际教育学院,贵州 贵阳 550001)
摘要点击次数:74    

摘  要:本文通过对L2正则化逻辑回归进行分析,使用随机梯度下降(SGD)和限制内存拟牛顿法(L-BFGS)来求解回归参数使得条件对数似然函数最大。在手写数字图像数据集USPS-N和HTML网页数据集上的两分类结果表明,随机梯度下降求解方法在两数据集上有较高的测试错误率。因此,在设计L2正则化逻辑回归求解方法时,可使用限制内存拟牛顿法作为缺省求解方法。


关键词:逻辑回归,随机梯度下降法,限制内存拟牛顿法


作者介绍:

黄雄鹏(1994-),男,侗族,贵州余庆人。研究方向:计算机科学与技术。


中图分类号:TP302.2     文献标识码:A 文章编号:2096-4706(2018)03-0000-03

Design of Logical RegressionSolving Based on L2 Regularization

HUANG Xiongpeng

(School of InternationalEducation,Guizhou Normal University,Guiyang  550001,China)

AbstractBy analyzing the L2 regularized logistic regression,this paperuses random gradient descent (SGD) and limited memory quasi Newton method (L-BFGS) to solve the regression parameter to make the maximum of theconditional log likelihood function. The two classification results on thehandwritten digital image data set USPS-N and the HTML web data set show thatthe random gradient descent method has a higher test error rate on the two dataset. Therefore,when designing L2 regularized logisticregression method,the restricted memory quasi Newtonmethod can be used as the default solution.

Keywordslogical regression;stochasticgradient descent method;restricted memory quasi Newtonmethod


参考文献:

[1] JANOCH A,KARAYEV S,YangqingJia,et al.A category-level 3-d object dataset: putting the kinect to work[C],2011-06-15,S.l.:s.n.,2011:1168-1174.

[2] PEDRO HTC,COIMBRA CFM. Assessment of forecasting techniques for solar power production with noexogenous inputs [J].Solar Energy,2012,86(7):2017-2028.

[3] Ding N,VishwanathanSVN.t-Logistic regression [C].Advances in Neural Information Processing Systems,2010: 514-522.

[4] Schmidt M.minFunc:unconstrained differentiable multivariate optimization in Matlab[J].Software available at http://www.cs.ubc.ca/~schmidtm/Software/minFunc.html,2005.