Yiyong Xiao

Learn More
Keywords: Multilevel lot-sizing (MLLS) problem Material requirements planning (MRP) system Variable neighborhood search (VRP) algorithm Meta-heuristics a b s t r a c t In this paper, an effective approach based on the variable neighborhood search (VNS) algorithm is presented to solve the uncapacitated multilevel lot-sizing (MLLS) problems with component(More)
This paper builds a mixed integer linear programming (MILP) model to mathematically characterize the problem of aggregate production planning (APP) with capacity expansion in a manufacturing system including multiple activity centers. We use the heuristic based on capacity shifting with linear relaxation to solve the model. Two linear relaxations, i.e., a(More)