How to improve the algorithm?

Deep Learning algorithms play a significant role in the field on image and speech recognition. Deep Learning is a part of the broad field of AI, inspired by the way neuron does the computation. Each node in the Deep Learning algorithm represents a neuron that receives a weighted sum of the input values from other neurons. Then, the neuron does a functional operation, applying a nonlinear function, such sigmoid, tan or relu to the weighted sum. It then sends the value produced by the nonlinear function to another neuron.