minFunc.zip

用提取的特征训练softmax分类器时所需要的matlab工具包

clear all

nInst = 250;
nVars = 10;
X = randn（nInstnVars）;
w = randn（nVars1）;
y = sign（X*w + randn（nInst1））;

wTest = randn（nVars1）;

fprintf（‘Testing gradient using forward-differencing...\n‘）;
order = 1;
derivativeCheck（@LogisticLosswTestorder1Xy）;

fprintf（‘Testing gradient using central-differencing...\n‘）;
derivativeCheck（@LogisticLosswTestorder2Xy）;

fprintf（‘Testing gradient using complex-step derivative...\n‘）;
derivativeCheck（@LogisticLosswTestorder3Xy）;

fprintf（‘\n\n\n‘）;
pause

fprintf（‘Testing Hessian using forward-differencing\n‘）;
order = 2;
derivativeCheck（@LogisticLosswTestorder1Xy）;

fprintf（‘Testing Hessian using central-differencing\n‘）;
order = 2;
derivativeCheck（@LogisticLosswTestorder2Xy）;

fprintf（‘Testing Hessian using complex-step derivative\n‘）;
order = 2;
derivativeCheck（@LogisticLosswTestorder3Xy）;

fprintf（‘\n\n\n‘）;
pause

fprintf（‘Testing gradient using fastDerivativeCheck...\n‘）;
order = 1;
fastDerivativeCheck（@LogisticLosswTestorder1Xy）;
fastDerivativeCheck（@LogisticLosswTestorder2Xy）;
fastDerivativeCheck（@LogisticLosswTestorder3Xy）;

fprintf（‘\n\n\n‘）;
pause

fprintf（‘Testing Hessian using fastDerivativeCheck...\n‘）;
order = 2;
fastDerivativeCheck（@LogisticLosswTestorder1Xy）;
fastDerivativeCheck（@LogisticLosswTestorder2Xy）;
fastDerivativeCheck（@LogisticLosswTestorder3Xy）;

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2013-03-21 02:14  minFunc-master\
     文件        1794  2013-03-21 02:14  minFunc-master\README.md
     目录           0  2013-03-21 02:14  minFunc-master\autoDif\
     文件        1319  2013-03-21 02:14  minFunc-master\autoDif\autoGrad.m
     文件        1184  2013-03-21 02:14  minFunc-master\autoDif\autoHess.m
     文件         371  2013-03-21 02:14  minFunc-master\autoDif\autoHv.m
     文件        1338  2013-03-21 02:14  minFunc-master\autoDif\autoTensor.m
     文件        1034  2013-03-21 02:14  minFunc-master\autoDif\derivativeCheck.m
     文件        1704  2013-03-21 02:14  minFunc-master\autoDif\fastDerivativeCheck.m
     文件        1392  2013-03-21 02:14  minFunc-master\example_derivativeCheck.m
     文件        2421  2013-03-21 02:14  minFunc-master\example_minFunc.m
     目录           0  2013-03-21 02:14  minFunc-master\logisticExample\
     文件         417  2013-03-21 02:14  minFunc-master\logisticExample\LogisticDiagPrecond.m
     文件         216  2013-03-21 02:14  minFunc-master\logisticExample\LogisticHv.m
     文件         709  2013-03-21 02:14  minFunc-master\logisticExample\LogisticLoss.m
     文件        2449  2013-03-21 02:14  minFunc-master\logisticExample\example_minFunc_LR.m
     文件         228  2013-03-21 02:14  minFunc-master\logisticExample\mylogsumexp.m
     文件         266  2013-03-21 02:14  minFunc-master\mexAll.m
     目录           0  2013-03-21 02:14  minFunc-master\minFunc\
     文件        4533  2013-03-21 02:14  minFunc-master\minFunc\ArmijoBacktrack.m
     文件       10590  2013-03-21 02:14  minFunc-master\minFunc\WolfeLineSearch.m
     目录           0  2013-03-21 02:14  minFunc-master\minFunc\compiled\
     文件        8264  2013-03-21 02:14  minFunc-master\minFunc\compiled\lbfgsAddC.mexa64
     文件        8624  2013-03-21 02:14  minFunc-master\minFunc\compiled\lbfgsAddC.mexmaci64
     文件        7168  2013-03-21 02:14  minFunc-master\minFunc\compiled\lbfgsAddC.mexw64
     文件        7707  2013-03-21 02:14  minFunc-master\minFunc\compiled\lbfgsC.mexa64
     文件        7733  2013-03-21 02:14  minFunc-master\minFunc\compiled\lbfgsC.mexglx
     文件        9500  2013-03-21 02:14  minFunc-master\minFunc\compiled\lbfgsC.mexmac
     文件       12660  2013-03-21 02:14  minFunc-master\minFunc\compiled\lbfgsC.mexmaci
     文件        8632  2013-03-21 02:14  minFunc-master\minFunc\compiled\lbfgsC.mexmaci64
     文件        7168  2013-03-21 02:14  minFunc-master\minFunc\compiled\lbfgsC.mexw32
............此处省略33个文件信息