神经网络实验群.doc牲名实验目的理解反向传播网络的结构和原理,学握反向传播算法对祌经元的训练过程,了解反向传播公式。通过构建BP网络实例,熟悉前馈网络的原理及结构。拓朴W•299(Input1output)数据1O/(\/(\/(\/1\\1/\)/1O\)/\)/oO•屬OU|U(w«OfReads•(inputlinput2output(and)Output(or)output(nor))(00001)(01010)(10010)(11110)练误训练111次::(inputlinput2input3ouput)(0000)(0010)(0100)(0111)(1000)(1011)(1101)(1111)训练150次:=inputl&input2Output(and)=inputl&input2Output(or)=inputl||input2Output(nor)=(〜input1)&(〜input2)Output=(inputl&input2)||(inputl&input3)||(input2&input3)pXi数观训练111次结果:测()结()果训练150次结果:()()()训练150: (000 0) (0 0 10) (0 1 0 0) (0 1 11) (1 0 0 0) (1 0 11) (1 1 0 1) (1 1 1()1)=inputl&input2Output(and)=inputl&input2Output(or)二input1input2Output(nor)=(〜input1)&(〜input2)Output^(inputl&input2)(inputl&input3) (&input3)
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