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Unbiased GM-Markov model in deformation prediction
Pages: 82-84+88
Year: Issue:  9
Journal: Geotechnical Investigation & Surveying

Keyword:  grey prediction modelunbiased GM modelunbiased GM-Markov predictionstate divisionstate transition probability matrix;
Abstract: This paper proposes a new combination model to forecast the settlement deformation on the basis of the traditional unbiased GM prediction model and Markov model.In view of the traditional grey prediction model existing gray deviation and the limitation of the weak anti-interference ability,and the dynamic process of stochastic volatility,unbiased GM-Markov model is proposed for settlement prediction.Experimental results show that using the method of the combination,the precision of prediction results is improved significantly,and it is superior to the unbiased GM method.
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