17,726 research outputs found
European exchange trading funds trading with locally weighted support vector regression
In this paper, two different Locally Weighted Support Vector Regression (wSVR) algorithms are generated and applied to the task of forecasting and trading five European Exchange Traded Funds. The trading application covers the recent European Monetary Union debt crisis. The performance of the proposed models is benchmarked against traditional Support Vector Regression (SVR) models. The Radial Basis Function, the Wavelet and the Mahalanobis kernel are explored and tested as SVR kernels. Finally, a novel statistical SVR input selection procedure is introduced based on a principal component analysis and the Hansen, Lunde, and Nason (2011) model confidence test. The results demonstrate the superiority of the wSVR models over the traditional SVRs and of the v-SVR over the ε-SVR algorithms. We note that the performance of all models varies and considerably deteriorates in the peak of the debt crisis. In terms of the kernels, our results do not confirm the belief that the Radial Basis Function is the optimum choice for financial series
Prediction of composite indicators using locally weighted quantile regression
The main goal of this paper is to improve the existing methods and tools used for
solving penalized quantile regression problems. We modified the quantile regression method by
implementing the extreme learning machine (ELM) algorithm and features of locally weighted
regression. Also, we used different penalty functions. A modified method was used for the onestep-
ahead prediction of the composite indicator (CI) of the Lithuanian economy. Our analysis
showed that the prediction error of the modified locally weighted quantile regression is smaller in
comparison to the other quantile regression
Prediction of composite indicators using locally weighted quantile regression
The main goal of this paper is to improve the existing methods and tools used for solving penalized quantile regression problems. We modified the quantile regression method by implementing the extreme learning machine (ELM) algorithm and features of locally weighted regression. Also, we used different penalty functions. A modified method was used for the one-step-ahead prediction of the composite indicator (CI) of the Lithuanian economy. Our analysis showed that the prediction error of the modified locally weighted quantile regression is smaller in comparison to the other quantile regression
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