Adaptive system for dam behavior modeling based on linear regression and genetic algorithms

Authors:
B. Stojanovic;M. Milivojevic;M. Ivanovic;N. Milivojevic;D. Divac
Affiliations:
Faculty of Science, University of Kragujevac, Radoja Domanovica 12, 34000 Kragujevac, Serbia;Technical and Business College, Trg Sv. Save 34, 31000 Uzice, Serbia;Faculty of Science, University of Kragujevac, Radoja Domanovica 12, 34000 Kragujevac, Serbia;"Jaroslav Cerni" Institute for the Development of Water Resources, 11000 Belgrade, Serbia;"Jaroslav Cerni" Institute for the Development of Water Resources, 11000 Belgrade, Serbia
Venue:
Advances in Engineering Software
Year:
2013

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Abstract

Most of the existing methods for dam behavior modeling require a persistent set of input parameters. In real-world applications, failures of the measuring equipment can lead to a situation in which a selected model becomes unusable because of the volatility of the independent variables set. This paper presents an adaptive system for dam behavior modeling that is based on a multiple linear regression (MLR) model and is optimized for given conditions using genetic algorithms (GA). Throughout an evolutionary process, the system performs real-time adjustment of regressors in the MLR model according to currently active sensors. The performance of the proposed system has been evaluated in a case study of modeling the Bocac dam (at the Vrbas River located in the Republic of Srpska), whereby an MLR model of the dam displacements has been optimized for periods when the sensors were malfunctioning. Results of the analysis have shown that, under real-world circumstances, the proposed methodology outperforms traditional regression approaches.