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Jens Lysgaard

Researcher at Aarhus University

Publications -  29
Citations -  2089

Jens Lysgaard is an academic researcher from Aarhus University. The author has contributed to research in topics: Vehicle routing problem & Column generation. The author has an hindex of 14, co-authored 28 publications receiving 1897 citations.

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A new branch-and-cut algorithm for the capacitated vehicle routing problem

TL;DR: A new branch-and-cut algorithm for the capacitated vehicle routing problem (CVRP) that uses a variety of cutting planes, including capacity, framed capacity, generalized capacity, strengthened comb, multistar, partialMultistar, extended hypotour inequalities, and classical Gomory mixed-integer cuts is presented.
Journal ArticleDOI

Robust Branch-and-Cut-and-Price for the Capacitated Vehicle Routing Problem

TL;DR: This paper presents an algorithm that combines both approaches: it works over the intersection of two polytopes, one associated with a traditional Lagrangean relaxation over q-routes, the other defined by bound, degree and capacity constraints.
Journal ArticleDOI

A branch-and-price algorithm for the capacitated vehicle routing problem with stochastic demands

TL;DR: The CVRPSD can be formulated as a set partitioning problem and it is shown that the associated column generation subproblem can be solved using a dynamic programming scheme.
Book ChapterDOI

Robust Branch-and-Cut-and-Price for the Capacitated Vehicle Routing Problem

TL;DR: This paper presents an algorithm that combines both approaches: it works over the intersection of two polytopes, one associated with a traditional Lagrangean relaxation over q-routes, the other defined by bound, degree and capacity constraints.
Journal ArticleDOI

The offshore wind farm array cable layout problem: a planar open vehicle routing problem

TL;DR: This work optimize cable layouts for real-world OWFs by a hop-indexed integer programming formulation, and develops a heuristic for computing layouts based on the Clarke and Wright savings heuristic to solve the vehicle routing problem in an offshore wind farm.