On-line fault diagnosis method for sewage treatment based on weighted extreme learning machine based on kernel function
An extreme learning machine and fault diagnosis technology, applied in neural learning methods, electrical digital data processing, special data processing applications, etc., can solve problems such as increased operating costs, difficulty in fault diagnosis of sewage biochemical treatment, and secondary environmental pollution
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[0090] The present invention will be further described below in conjunction with specific examples.
[0091] The weighted extreme learning machine sewage treatment online fault diagnosis method based on kernel function of the present invention comprises the following steps:
[0092] 1) Eliminate the data with incomplete attributes in the sewage data, and then normalize the data to determine the historical data set x old and update the test set x new ;
[0093] 2) Select the kernel function and weighting scheme, and determine the model parameters according to the optimal model;
[0094] 3) According to the selected weighting scheme, the historical data set x old Each sample of is given a weight, and the weight matrix W is obtained;
[0095] 4) Train the model and calculate the kernel matrix Ω according to the kernel function ELM ;
[0096] 5) Update the test set x from new Add k new samples to the model for testing, save the classification test results, add them to the h...
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