function?net?=?cnnapplygrads（net?opts）
????for?l?=?2?:?numel（net.layers）
????????if?strcmp（net.layers{l}.type?‘c‘）
????????????for?j?=?1?:?numel（net.layers{l}.a）
????????????????for?ii?=?1?:?numel（net.layers{l?-?1}.a）
????????????????????%?這里沒什么好說的，就是普通的權值更新的公式：W_new?=?W_old?-?alpha?*?de/dW（誤差對權值導數）?
????????????????????net.layers{l}.k{ii}{j}?=?net.layers{l}.k{ii}{j}?-?opts.alpha?*?net.layers{l}.dk{ii}{j};
????????????????end
????????????????net.layers{l}.b{j}?=?net.layers{l}.b{j}?-?opts.alpha?*?net.layers{l}.db{j};
????????????end
????????end
????end

????net.ffW?=?net.ffW?-?opts.alpha?*?net.dffW;
????net.ffb?=?net.ffb?-?opts.alpha?*?net.dffb;
end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????690??2015-01-12?10:20??CNN\cnnapplygrads.m

?????文件???????3643??2015-01-12?10:20??CNN\cnnbp.m

?????文件???????3440??2015-01-12?10:19??CNN\cnnff.m

?????文件???????3430??2014-05-11?20:46??CNN\cnnnumgradcheck.m

?????文件???????5966??2015-01-12?10:19??CNN\cnnsetup.m

?????文件????????322??2015-01-12?10:20??CNN\cnntest.m

?????文件???????1711??2015-01-12?10:20??CNN\cnntrain.m

?????文件???????1958??2014-05-11?20:46??CNN\expand.m

?????文件?????????80??2014-05-11?20:46??CNN\flipall.m

?????文件???14735220??2014-05-11?20:46??CNN\mnist_uint8.mat

?????文件?????????48??2014-05-11?20:46??CNN\sigm.m

?????文件???????1269??2015-04-24?10:48??CNN\test_example_CNN.m

?????目錄??????????0??2015-04-23?10:27??CNN

-----------?---------??----------?-----??----

?????????????14757777????????????????????13