Traditional Culture Encyclopedia - Weather inquiry - What is BP neural network?
What is BP neural network?
1. Extract samples from the training set and input the information into the network.
2. The actual output of the neural network is obtained by the forward layer-by-layer processing of the connections between nodes.
3. Calculate the error between the actual output and the expected output of the network.
4. The error is transmitted back to the previous layers layer by layer, and the error signal is loaded on the connection weight according to certain principles, so that the connection weight of the whole neural network is transformed to the direction of error reduction.
5. Repeat the above steps for each input-output sample pair in the training set until the error of the whole training sample set is reduced to meet the requirements.
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