publication date 2016-06

• Prioritizing Projects Using Hybrid Methods of Six Sigma, TRIZ and Gray ANP
• A hybrid metaheuristic algorithm for solving a rollon–rolloff waste collection vehicle routing problem considering waste separation and recycling center
• A Two-stage DEA Model Considering Shared Inputs, Free Intermediate Measures and Undesirable Outputs
• Efficient DMUs improvement based on input expenses reduction using data envelopment analysis
• An efficient Imperialistic Competitive Algorithm for the closed-loop supply chains considering pricing for product, and fleet of heterogeneous vehicles
• The place of AHP method among Multi Criteria Decision Making methods in forest management