just-in-timelearning (JIT) is a kind of effective local modeling methods. The accuracy of JIT depends on the quality of the selected samples. How to choose the modeling sample is the key issue in the JIT algorithm. U...
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ISBN:
(纸本)9789881563910
just-in-timelearning (JIT) is a kind of effective local modeling methods. The accuracy of JIT depends on the quality of the selected samples. How to choose the modeling sample is the key issue in the JIT algorithm. Using the information entropy, an improved similarity index integrated the mutual information and the weighted samples is proposed in this paper. Firstly, the correlation degree between each input variable and output variable is estimated by using the mutual information algorithm, and the mutual information is set as weight factors to discount the corresponding variables. Then, the weighted input variables are used in the sample selection stage. At last, the traditional JIT algorithm is used for local modelling. The effectiveness of the improved similarity index algorithm is validated on a numerical example and Penicillin concentration soft sensor.
just-in-timelearning(JIT) is a kind of effective local modeling *** accuracy of JIT depends on the quality of the selected *** to choose the modeling sample is the key issue in the JIT *** the information entropy,an ...
详细信息
ISBN:
(纸本)9781509009107
just-in-timelearning(JIT) is a kind of effective local modeling *** accuracy of JIT depends on the quality of the selected *** to choose the modeling sample is the key issue in the JIT *** the information entropy,an improved similarity index integrated the mutual information and the weighted samples is proposed in this ***,the correlation degree between each input variable and output variable is estimated by using the mutual information algorithm,and the mutual information is set as weight factors to discount the corresponding ***,the weighted input variables are used in the sample selection *** last,the traditional JIT algorithm is used for local *** effectiveness of the improved similarity index algorithm is validated on a numerical example and Penicillin concentration soft sensor.
In order to accurately predict the fuel consumption of fixed aircraft model and in view of the non-linearity of fuel consumption data, which affected by various external factors, a forecast model of aircraft fuel cons...
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ISBN:
(数字)9781728176871
ISBN:
(纸本)9781728176871
In order to accurately predict the fuel consumption of fixed aircraft model and in view of the non-linearity of fuel consumption data, which affected by various external factors, a forecast model of aircraft fuel consumption based on just-in-timelearning and enhanced fitness adaptive differential evolution relevance vector machine (EFADE-RVM) is proposed. By introducing the just-in-time learning algorithm of 'similar input produce similar output' to select the relevant sample set, and using the enhanced adaptive differential evolution (DE) algorithm to improve the parameters of the relevance vector machine kernel function. Thus, an aircraft fuel consumption prediction model is established. The experimental results show that the improvement method gets better prediction performance.
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