Research Paper Scheduling
Modeling and Scheduling University Course Timetabling Problems

B. Naderi

Volume 5, 1(4) , November 2016, Pages 1-15

  This paper considers the problem of university course timetabling. In this problem, there are a set of courses, lecturers and classrooms. The objective is to assign schedule courses so as to maximize the total preference of lecturer-course, lecturer-day and course-day. The paper first formulates the ...  Read More

Research Paper Inventory, logistics, and transportation
Solving a Bi-Objective Transportation Vehicle Routing Problem for Waste Collection by a New Hybrid Algorithm

H. Farrokhi-Asl; R. Tavakkoli-Moghaddam

Volume 5, 1(4) , November 2016, Pages 16-42

  This paper is an extension of the well-known vehicle routing problem (VRP) consisting of two stages. The first and second stages deal with the vehicle routing and transportation problems, respectively. Waste collection is one of the applications of the considered problem in a real world situation. A ...  Read More

Research Paper Data Envelopment Analysis, DEA
The Methods of Ranking based Super Efficiency

M. Nayebi; F Hosseinzadeh Lotfi

Volume 5, 1(4) , November 2016, Pages 43-66

  The science of Data Envelopment Analysis (DEA) evaluates the effectiveness of decision making units. But, one of the problems of Data Envelopment Analysis (DEA) is that, if the number of units with the same efficiency equal to one was more than one, then we couldn’t select the best between them. ...  Read More