A comparitive analysis and time series forecasting of monthly stream flow data using hybrid model

In this study,new hybrid model is developed by integrating two models,the discrete wavelet transform and least square support vector machine (wlssvm) model. the hybrid model is then used to measure for monthly stream flow forecasting for two major rivers in pakistan. the monthly stream flow forecasting results are obtained by applying this model individually to forecast the rivers flow data of the indus river and neelum rivers. the root mean square error (rmse),mean absolute error (mae) and the correlation (r) statistics are used for evaluating the accuracy of the wlssvm,the proposed model. the results are compared with the results obtained through lssvm. the outcome of such comparison shows that wlssvm model is more accurate and efficient than lssvm. © 2015 penerbit utm press. all rights reserved.