Created
November 11, 2018 07:51
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| def backward_prop(x, y, w1, w2, bias1, bias2, z1,a1,z2,a2): | |
| da2 = a2 * (1-a2) | |
| dz2 = (a2-y) | |
| dw2 = np.multiply(a1.T, dz2) | |
| db2 = dz2 | |
| da1 = a1 * (1-a1) | |
| dz1 = np.dot(w2.T, dz2) * da1 | |
| dw1 = dz1 * x.T | |
| db1 = dz1 | |
| return da1,da2,dz1,dz2,dw1,dw2,db1,db2 |
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