:(Neural Network)

ʽ:SolveNN(x,f1,w1,f2,w2,,fn,wn)

x:洢Ҫ
f1:ַ洢ĵ1㴫ݺ,ĬΪ"1/(1+exp(x))",ע⴫ݺıƱΪx
w1:1Ȩϵ

fn:ַ洢ĵn㴫ݺ,ĬΪ"1/(1+exp(x))",ע⴫ݺıƱΪx
wn:nȨϵ

˵:

1ϷضӦֵ

2һxΪm*nľʾm,ÿn,е1Ȩϵw1nһ

3Ȩز϶ʱ,nȨϵwnһȨϵw(n-1)һ

4ܲΪ2

ע:Ȩϵ,֪Ȩϵֵ

:
x =
[ 1.00000000000000    2.00000000000000
  3.00000000000000    4.00000000000000 ]
w1 =
[ 1.00000000000000    2.00000000000000    0.30000000000000
  2.00000000000000    1.00000000000000    0.50000000000000 ]
w2 =
[ 1.00000000000000
  2.00000000000000
  1.00000000000000 ]

y=SolveNN(x,"4/(1+exp(x))",w1,"1/(2+sin(x))",w2)//ԭʼxԼ1Ȩϵw1Լ2Ȩϵw2,ҵ1ĴݺΪ4/(1+exp(x)),2ĴݺΪ1/(2+sin(x)),ô,ִбسõ½
y =
[ 0.35015025734618
  0.45299599351114 ]