List of Articles Column generation Open Access Article Abstract Page Full-Text 1 - A New Algorithm of the Variational Inequality Problems with Application on the Asymmetric Traffic Equilibrium Problem Morad Payvand Sadigheh Jahdi Hamid Reza maleki sarvestani Open Access Article Abstract Page Full-Text 2 - Solving portfolio selection problem using Dantzig-Wolfe algorithm Javad Behnamian Mohammad Moshrefi Open Access Article Abstract Page Full-Text 3 - Parallel computation framework for optimizing trailer routes in bulk transportation Ugandhar Delli Ashesh Kumar Sinha