This paper deals with a cost sensitive extension of the standard Support Vector Machine (SVM) using an ordered weighted sum deviations misclassified individuals respect to their corresponding supporting hyperplanes. In contrast previous heuristic approaches, exact method that applies average operator in classical SVM model is proposed. Specifically, when weights are sorted non-decreasing order,...

The purpose of this study is to compare the 3 forecasting methods Linear Regression, Exponential Smoothing and Weighted Moving Average based on smallest error value or close zero. From results study, Regression method was obtained as correct with a predicted 502 students, MAD 27.83, MSE 1152.1 MAPE 8.1%. Tracking Signal moves between 1 -1, movement within control limits tracking signal standard...

We argue against the use of generally weighted moving average (GWMA) control charts. Our primary reasons are following: (1) There is no recursive formula for GWMA chart statistic, so all previous data must be stored and used in calculation each statistic. (2) The Markovian property does not apply to statistics, computer simulation determine limits statistical performance. (3) An appropriately d...

Average prices are popularly used in the literature on price modeling. Calculating daily or weekly as an average over hourly half-hourly trading periods assumes same weight ignoring demand traded volumes during those periods. Analyzing weighted is important if producers may affect by decreasing them low-demand and increasing high-demand within a day. The prediction of this manipulation might ha...