Dissolved oxygen concentration soft-measuring method based on group decision case reasoning
A dissolved oxygen concentration and group decision-making technology, applied in the field of water treatment, can solve problems such as slow training speed, inability to guarantee global optimality, and insufficient use of iterative optimization capabilities
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[0072] The invention obtains a soft measurement method of dissolved oxygen concentration, which applies the group decision-making thought to the case reasoning model, through determining characteristic variables, establishing a soft measurement case library, assigning weights, case retrieval, group decision-making case reuse and case Establish a soft sensor model based on data in storage and other links, and realize the measurement algorithm to achieve the purpose of estimating the dissolved oxygen concentration through the numerical changes of characteristic variables;
[0073]The experimental data comes from the water quality analysis report of a sewage treatment plant; the experimental samples consist of 69 groups of data, and all 69 groups of data samples are divided into ten parts. The number of samples in each part is: nine parts with 7 data and one part with 6 parts data), using the ten-fold cross-validation method to test the effect of the soft measurement method;
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