Modeling method and device for user behavior analysis and prediction based on BP neural network
A technology of BP neural network and modeling method, which is applied in e-commerce, big data analysis, and computer network fields. It can solve problems such as inaccurate prediction and slow convergence speed, so as to improve competitiveness, improve convergence speed and prediction accuracy, The effect of improving forecast accuracy and reliability
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[0025] In order to make the technical means, creative features, goals and effects of the present invention easy to understand, the present invention will be further described in conjunction with specific embodiments and accompanying drawings.
[0026] The specific algorithm flow of the hidden layer of BP neural network is as follows: figure 1, by pre-inputting some existing statistical parameters, let the model learn by itself, after inputting each parameter into the model through the input layer, first initialize the connection weight and threshold of each neuron in the hidden layer, and start to enter the learning mode. At this point, each neuron in each hidden layer computes a net input and output, and the output of the hidden layer then becomes the input to the output layer. After the output layer gets the input, it calculates the net input and output of each neuron. Next, both the hidden layer and the output layer compare their output with the set threshold and calculate...
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