这是俺一个同学用反向传播算法编写的数字识别软件，识别率还是不错的-students with a back-propagation algorithm figures prepared by the recognition software to identify the rate is still pretty good

用BP算法实现人脸识别,其中包含了c++，和记事本类型的源代码-use Back Propagation algorithm to realize face recognition

反向传播算法与利用卷积神经网络识别手写体(Back propagation algorithm and recognition of handwriting by using convolution neural network)