Coal ash fusion temperature forecasting method based on construction-pruning mixed optimizing RBF (Radial Basis Function) network
A technology of RBF network and prediction method, applied in the prediction field of coal ash melting point, can solve the problems of low precision, weak generalization ability, unreasonable model structure, etc.
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[0046] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.
[0047] figure 1 Shown is the construction-pruning hybrid optimization algorithm flowchart of the present invention, and the realization steps of CPHM are as follows:
[0048] 1). Select the first data center of the RBF network according to formula (2), and calculate the output weight.
[0049] E. 1 (x i )=max{Y T the s i , i=1, 2, ..., N} (2)
[0050] in, for x i is the response function vector of the new hidden node in the data center, Y=[y 1 ,y 2 ,...,y N ] T Output vector for the teacher of the neural network.
[0051] 2). In the rough adjustment stage, the minimum of formula (1) is taken as the standard, and the data center of the RBF network is selected until the stopping criterion (3) is met.
[0052] E = ...
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