Research Article
A Hybrid Forecasting Model Based on Empirical Mode Decomposition and the Cuckoo Search Algorithm: A Case Study for Power Load
| ) / Initialize , , , ,./ | | () WHILE is not a monotonic function DO | | () WHILE DO / Find all local maxima and minima of by cubic spline./ | | () / Produce the upper and lower envelopes expressed as and ./ | | () , , | | () END WHILE | | () , , | | () END WHILE | | () , | | () GENERATE | | () DO WHILE | | () / Generate a cuckoo egg by taking a Lévy flight from a random nest./ | | () FOR EACH DO/ Calculate the fitness value and select the candidate. / | | () | | () IF DO / Replace the worse location of the nest by the better one./ | | () | | () ELSE | | () rand = randn() | | () IF DO / Discard the worst solution by and produce a new solution./ | | () | | () ELSE | | () END IF; END FOR; END WHILE | | () /Initial weights and thresholds of WNN by obtaining the best individual. / | | () , / The process of training data normalization. / | | () / Adjust the weights and threshold of WNN according to the forecast error. / | | () DO WHILE | | () | | () FOR EACH DO | | () FOR EACH DO | | () / Calculate the outputs of the hidden layer. / | | () FOR EACH DO | | () / Calculate the outputs of the output layer. / | | () / Calculate the forecast error in the output layer. / | | () / Update the connection weights / | | () / Update the threshold./ | | () | | () END FOR; END WHILE | | () RETURN |
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