Estimation of Discharge Using LS-SVM and Model Trees
Journal of Water Resources and Ocean Science
Volume 5, Issue 6, December 2016, Pages: 78-86
Received: Aug. 28, 2016; Accepted: Oct. 13, 2016; Published: Nov. 7, 2016
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V. G. Sayagavi, Civil Engineering Research Center, Datta Meghe College of Engineering, , Navi Mumbai, India
Shrikant Charhate, Department of Civil Engineering, Pillai HOC College of Engineering & Technology, Rasayani, India
Rajendra Magar, Department of Civil Engineering, AIKTC School of Engineering & Technology, New Panvel, India
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In planning and management of any water resource systems prediction or estimation of runoff over the catchment is considered as a crucial factor. Many researchers over the past two decades addressed these problems by traditional methods as well as with some new techniques. This paper is describable and is focused on the capability of some data driven techniques such as Least Square Support Vector Machines (LS-SVM) and Model Trees with M5 algorithm. These methods were used to estimate runoff of various stations in the catchment area in Upper Krishna basin, Maharashtra State, India, and discussed here two stations namely Shigaon and Gudhe. The specialty of these catchment areas is Shigaon has large area and Gudhe has small area. This was done to see the model performance in both conditions. Additionally metrological data was used in the process to see the performance of models. The quantitative analysis was carried out to check the performance of the accuracy by considering standard statistical performance evaluation metrics and the scatter plots are drawn for evaluating qualitative performances of the developed models. The effect of the various metrological parameters as an input parameter for the rainfall was also investigated.The performance of both the tools was judged with various performance measures and it is found that the results are quite encouraging. LS-SVM models performed better since it has captured all the higher peak discharges for both catchments, indicating LS-SVM is best suited for large sized catchments and MT tool is best suited for the smaller sized catchments. However LS-SVM performance is better as compared to MT as modeling approaches are examined, using the long-term observations of yearly river flow discharges.
Hydrological Processes, Runoff, Least Square Support Vector Machines, Model Trees
To cite this article
V. G. Sayagavi, Shrikant Charhate, Rajendra Magar, Estimation of Discharge Using LS-SVM and Model Trees, Journal of Water Resources and Ocean Science. Vol. 5, No. 6, 2016, pp. 78-86. doi: 10.11648/j.wros.20160506.11
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