Browsing by Publisher "Vilnius Gediminas Technical University"
Now showing items 1-5 of 5
-
A comparison study of forecasting financial fuzzy time series by artificial neural networks
(Vilnius Gediminas Technical University, 2010)Forecasting financial time series is an important area for various investors and business practices. Fuzzy time series models which have been successfully applied to handle nonlinear problems have become popular in recent ... -
Comparison study of P-spline and univariate additive model (CUBIC smoothing spline) in time-series prediction
(Vilnius Gediminas Technical University, 2010)Smoothing splines used in many nonparametric problems to make a good approximation for smoothed functions in recent years. It is discussed two nonparametric techniques called P-spline and univariate additive model (cubic ... -
Forecasting with the aid of hybrid models, combining neural networks and nonparametric regression models in time series
(Vilnius Gediminas Technical University, 2010)The goal of this article is to introduce the hybrid models that combine nonparametric regression and artificial neural networks. Smoothing spline, regression spline and additive regression models are considered as the ... -
Information technology usage impacts on construction projects' success
(Vilnius Gediminas Technical University, 2010)Information technology (IT) plays an important role for improving business processes and has significant effects on project time, cost and quality in the construction industry. Effective use of IT may increase construction ... -
Optimality conditions via generalized radial epiderivatives in nonconvex set-valued optimization
(Vilnius Gediminas Technical University, 2010)In this paper, the generalized radial epiderivative for set-valued maps is introduced and its relationship to the radial epiderivative is investigated. Existence conditions for generalized radial epiderivatives are established ...