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.The brain computer interface, or the brain machine interface, is a hardware and software communication system that allows humans to control the external devices or interact with the surrounding by using their electric activity of the brains The main challenge of developing this BCI system is the difficulty of increasing the accuracy of the algorithm, because the BCI system can not easily distinguish what people intend to do.
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