Journal ArticleDOI
Stacking outbound barge containers in an automated deep-sea terminal
Amir Gharehgozli,Nima Zaerpour +1 more
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TLDR
The results show that the proposed stacking heuristic can provide solutions with a gap of less than 10% with the lower bound for real-sized instances with high utilization and can reduce the total retrieval time up to 30% compared to often-used in practice stacking policy.About:
This article is published in European Journal of Operational Research.The article was published on 2018-06-16. It has received 36 citations till now. The article focuses on the topics: Container (type theory).read more
Citations
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Exploiting Knowledge About Future Demands for Real-Time Vehicle Dispatching
TL;DR: In this article, a probabilistic knowledge about future request arrivals is used to better manage the fleet of vehicles in a real-time setting, where dummy customers (representing forecasted requests) are introduced in vehicle routes to provide a good coverage of the territory.
Journal ArticleDOI
A comprehensive review of quay crane scheduling, yard operations and integrations thereof in container terminals
TL;DR: This comprehensive literature review study aims to combine the literature on both yard and quayside operations, carefully examining independently studied problems as well as integrated ones, and managerial insights and future research directions are identified.
Journal ArticleDOI
Robot scheduling for pod retrieval in a robotic mobile fulfillment system
Amir Gharehgozli,Nima Zaerpour +1 more
TL;DR: This work model the operational problem of scheduling a mobile robot fulfilling a set of customer orders from a pick station as a generalized asymmetric traveling salesman problem, and develops an adaptive large neighborhood search heuristic to efficiently solve real size instances.
Journal ArticleDOI
Optimal dry port configuration for container terminals: A non-linear model for sustainable decision making
TL;DR: A mathematical model based on a computational algorithm for non-linear programming is able to provide the number of containers to be stocked in port and/or in dry port, ensuring an effective strategy dependent on ‘road’ and ‘non-road' material handling equipment adopted, on the number and size of containers, as well as on the distance from port to dry port.
Posted Content
The parallel stack loading problem to minimize blockages
Nils Boysen,Simon Emde +1 more
TL;DR: This paper treats an elementary optimization problem, which arises whenever an inbound stream of items is to be intermediately stored in a given number of parallel stacks, so that blockages during their later retrieval are avoided.
References
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Journal ArticleDOI
Optimization by Simulated Annealing
TL;DR: There is a deep and useful connection between statistical mechanics and multivariate or combinatorial optimization (finding the minimum of a given function depending on many parameters), and a detailed analogy with annealing in solids provides a framework for optimization of very large and complex systems.
Book
Computers and Intractability: A Guide to the Theory of NP-Completeness
TL;DR: The second edition of a quarterly column as discussed by the authors provides a continuing update to the list of problems (NP-complete and harder) presented by M. R. Garey and myself in our book "Computers and Intractability: A Guide to the Theory of NP-Completeness,” W. H. Freeman & Co., San Francisco, 1979.
Journal ArticleDOI
Equation of state calculations by fast computing machines
TL;DR: In this article, a modified Monte Carlo integration over configuration space is used to investigate the properties of a two-dimensional rigid-sphere system with a set of interacting individual molecules, and the results are compared to free volume equations of state and a four-term virial coefficient expansion.