Estimating inputs from outputs in neural networks

If I have a neural networks of 8 inputs and 6 outputs. Is it possible after training to estimate inputs from outputs?

Answer 1

[Ameer Hamza]

You may try fsolve(). However, due to the complexity of a neural network, it is unlikely that it will be able to find a solution.

fsolve(@(x) net(x)-out_vec, rand(8,1)); % out_vec is 6x1 output vector

You may also try optimization based methods

fmincon(@(x) norm(net(x)-[1.5 -0.5]), rand(3,1)) % fmincon
ga(@(x) norm(net(x(:))-[1.5 -0.5]), 3) % genetic algorithm