Results 21 to 30 of about 14,097 (243)
The study focuses on the strategic decisions including on the location and capacity of stations and the fleet size for designing the one-way station-based carsharing systems. Under demand uncertainty, we introduce a two-stage risk-averse stochastic model
Kai Zhang +3 more
doaj +1 more source
A Branch-and-Cut Algorithm for the Multilevel Generalized Assignment Problem
The multilevel generalized assignment problem (MGAP) consists of minimizing the assignment cost of a set of jobs to machines, each having associated therewith a capacity constraint.
Pasquale Avella +2 more
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The Coon amplitude is a q-deformed generalization of the Veneziano amplitude exhibiting a semi-infinite sequence of poles that converge on an accumulation point, from which a branch cut emerges. A number of recent papers have provided compelling evidence
Christian Baadsgaard Jepsen
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A branch‐and‐cut algorithm for the Team Orienteering Problem [PDF]
AbstractThe Team Orienteering Problem aims at maximizing the total amount of profit collected by a fleet of vehicles while not exceeding a predefined travel time limit on each vehicle. In the last years, several exact methods based on different mathematical formulations were proposed.
Bianchessi, Nicola +2 more
openaire +4 more sources
ObjectiveTo determine the optimal ultrasound (US) cut-off values for cranial and extracranial arteries intima media thickness (IMT) to discriminate between patients with and without giant cell arteritis (GCA).MethodsRetrospective observational study ...
Katerine López-Gloria +19 more
doaj +1 more source
A Branch-and-Cut-and-Price Algorithm for the Electric Vehicle Routing Problem with Multiple Technologies [PDF]
Este artículo es parte de Topical Collection on Decomposition at 70We provide an exact optimization algorithm for the electric vehicle routing problem with multiple recharge technologies.
Righini, Giovanni +4 more
core +1 more source
A Branch-and-Cut Algorithm for Submodular Interdiction Games
Many relevant applications from diverse areas such as marketing, wildlife conservation, and defending critical infrastructure can be modeled as interdiction games. In this work, we introduce interdiction games whose objective is a monotone and submodular set function.
Kübra Taninmis, Markus Sinnl
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Beech shearing/high-stumping to control understory interference
The research evaluated opportunities for cutting off small understory beech root suckers at 0.6-0.9 m above ground. By six years (pilot test) after cutting with lopping shears in a closed-canopy uneven-aged northern hardwood stand, 91% of high stumps ...
Ralph D. Nyland, Diane H. Kiernan
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Branch-and-Cut-and-Price algorithms for the preemptive RCPSP [PDF]
In this article, we address the preemptive Resource-Constrained Precedence Scheduling Problem. We propose two mixed integer formulations containing an exponential number of variables and inequalities. An antichain is a set of pairwise incomparable elements with respect to the precedence constraints.
Fouilhoux, Pierre +3 more
openaire +3 more sources
An exact algorithm for design of content delivery networks in MPLS environment
Content delivery network (CDN) is an efficient and inexpensive method to improve Internet service quality. In this paper we formulate an optimisation problem of replica location in a CDN using MPLS techniques.
Krzysztof Walkowiak
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