We consider the two-level uncapacitated facility location problem with singleassignment constraints (TUFLP-S), a problem that arises in industrial applications in freight transportation andâ€¦ (More)

We attempt to determine the best order and search algorithm to store n comparable data items in an array, A, of length n so we can, for any query value, x, quickly find the smallest value in A thatâ€¦ (More)

We consider the two-level uncapacitated facility location problem with single assignment constraints (TUFLP-S), an extension of the uncapacitated facility location problem. We present sixâ€¦ (More)

We consider a two-echelon location-distribution problem arising from an actual application in fast delivery service. This problem belongs to the class of adaptive logistics problems, as the locationsâ€¦ (More)

We develop a variant of the variable neighborhood search (VNS) metaheuristic called the multilayer VNS (MLVNS). It consists in partitioning the neighborhood structures into multiple layers. For eachâ€¦ (More)

We consider a location-distribution problem motivated by a case study for a multi-channel retailing company, which sells a wide variety of products via Internet, mail order catalogs, and stores.â€¦ (More)