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A purchaser's goal is to find the optimal routing and purchasing strategies that minimize the expected total travel and purchasing costs needed Links of London purchase one unit of each commodity. The purchaser reveals the actual commodity price at a seller upon arrival, and then either purchases the commodity at the offered price, or rejects the price and visits a next seller. In this paper, we propose an exact solution algorithm based on dynamic programming, an iterative approximate algorithm that yields bounds for the minimum total expected cost, and a greedy heuristic for fast solutions to largescale applications. Links of London Cowboy Boot Charm analyze the characteristics of the problem and test the computational performance of the proposed algorithms. The numerical results show that the approximate and heuristic algorithms yield nearoptimum strategies and very good estimates of the minimum total cost. PUBLICATION ABSTRACT This paper addresses an extension of the capacitated vehicle routing problem where customer demand is composed of twodimensional weighted items LCVRP. The objective consists in designing a set of trips minimizing the total transportation cost with a homogenous fleet of vehicles based on a depot node. Items in each vehicle trip must satisfy the twodimensional orthogonal packing constraints. A GRASPxELS algorithm is proposed to compute solutions of a simpler problem in which the loading constraints are transformed Links of London Ballet Shoes Charm resource constrained project scheduling problem RCPSP constraints. We denote this relaxed problem RCPSPCVRP. The optimization framework deals with RCPSPCVRP and lastly RCPSPCVRP solutions are transformed into LCVRP solutions by solving a dedicated packing problem. The effectiveness of our approach is demonstrated through computational experiments including both classical CVRP and LCVRP instances. Numerical experiments show that the GRASPxELS approach outperforms all previously published methods. PUBLICATION ABSTRACT Scheduling of quay cranes at container terminals is a field of growing interest in research and practice. In the literature, we find diverse models links of london sale quay crane scheduling that consider the service of container vessels at different levels of detail. Currently, however, there exists no basis to compare the quality of planning that is achieved from these models. There is also no platform available that allows comparing different solution procedures and investigating conditions where they perform well or poorly.