Browsing NTNU Open by Author "Stålhane, Magnus"
Now showing items 1-20 of 71
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2D-packing with an application to stowage in Roll-on Roll-off liner shipping
Hansen, Jone; Hukkelberg, Ivar; Fagerholt, Kjetil; Stålhane, Magnus; Rakke, Jørgen Glomvik (Journal article; Peer reviewed, 2016)Roll-on/Roll-off (RoRo) ships represent the primary source for transporting vehicles and other types of rolling material over long distances. In this paper we focus on operational decisions related to stowage of cargoes ... -
A Comparison of Single- and Multi-parameter Wave Criteria for Accessing Wind Turbines in Strategic Maintenance and Logistics Models for Offshore Wind Farms
Sperstad, Iver Bakken; Halvorsen-Weare, Elin Espeland; Hofmann, Matthias; Nonås, Lars Magne; Stålhane, Magnus; Wu, MingKang (Journal article; Peer reviewed, 2014)Different vessel types for transferring technicians for maintenance and inspection of offshore wind farms are often evaluated and compared by their limiting significant wave height for accessing the wind turbines. The ... -
A decomposition solution approach to the troops-to-tasks assignment in military peacekeeping operations
Chaudry, Nadia; Vermedal, Ingunn (Master thesis, 2018)Military peacekeeping operations are becoming increasingly complex, while at the same time facing stricter budgetary restrictions. It is therefore imperative, now more than ever, to have good operation plans that utilize ... -
A Decomposition-Based Matheuristic for the Two-Echelon Multi-Product Maritime Inventory Routing Problem
Chaudhary, Fattir Ahmed; Drangsland, Håkon Stubhaug; Fossum, Erlend Johnsen (Master thesis, 2022)Sjøfart som transportmetode har lenge vært ryggraden i verdensøkonomien, og transporterer i dag omtrent 80% av den globale handelen per volum. Ettersom dette er en langsom transportsmetode, er det nødvendig med omfattende ... -
A Heuristic Approach to the Two-Dimensional Roll-on Roll-off Liner Shipping Stowage Problem
Hansen, Jone; Hukkelberg, Ivar (Master thesis, 2016)Roll-on/Roll-off (RoRo) ships represent the primary source for transporting vehicles and other types of rolling material over long distances. In this master thesis, we focus on operational decisions related to stowage of ... -
A matheuristic for the inventory routing problem with divisible pickup and delivery
Aastveit, Einar; Staver, Tuva Toftdahl; Vadseth, Simen Tung (Master thesis, 2018)The management of reverse logistics has received growing attention in recent years due to new regulations, environmental aspects and an eagerness to obtain further operational benefits. Reverse logistics can be modeled as ... -
A metaheuristic solution method for optimizing vessel fleet size and mix for maintenance operations at offshore wind farms under uncertainty
Halvorsen-Weare, Elin Espeland; Norstad, Inge; Stålhane, Magnus; Nonås, Lars Magne (Journal article; Peer reviewed, 2017)Maintenance operations at offshore wind farms are challenging due to the offshore element; maintenance technicians and spare parts need to be transported from an onshore port or offshore station to the individual wind farm ... -
A Shortest Path Heuristic for Evaluating the Quality of Stowage Plans in Roll-On Roll-Off Liner Shipping
Hansen, Jone R.; Fagerholt, Kjetil; Stålhane, Magnus (Journal article; Peer reviewed, 2017)Roll-on Roll-off shipping companies transport rolling cargo, such as cars, trucks and large construction machines. When sailing, this type of cargo must be attached to the deck using chains, to prevent damaging the cargo. ... -
A Tabu Search Heuristic for Chartering Offshore Wind Farm Installation Vessels under Uncertainty
Voster, Miriam; Kjelby, Sara Marie (Master thesis, 2020)Etterspørselen etter nye energikilder vil øke de neste tiårene. Offshore vindkraft har potensiale til å dekke deler av denne etterspørselen. Kostnadene knyttet til offshore vindkraft er høye, og må reduseres for at offshore ... -
A variable neighbourhood search heuristic for disruption management in offshore oil and gas logistics
Stålhane, Magnus; Albjerk, Nils; Danielsen, Teodor; Krey, Stian; Fagerholt, Kjetil (Journal article; Peer reviewed, 2018)This paper studies operational planning and disruption management in offshore oil and gas logistics. A significant amount of time is currently spent on operational planning, and major costs are caused by disruptions to the ... -
A vessel pickup and delivery problem from the disruption management in offshore supply vessel operations
Albjerk, Nils; Danielsen, Teodor; Krey, Stian; Stålhane, Magnus; Fagerholt, Kjetil (Journal article; Peer reviewed, 2016)This paper considers a vessel pickup and delivery problem that arises in the case of disruptions in the supply vessel logistics in the offshore oil and gas industry. The problem can be modelled as a multi-vehicle pickup ... -
An adaptive large neighborhood search heuristic for the planar storage location problem: application to stowage planning for Roll-on Roll-off ships
Hansen, Jone Reinlund; Fagerholt, Kjetil; Stålhane, Magnus; Rakke, Jørgen Glomvik (Peer reviewed; Journal article, 2020)This paper considers a generalized version of the planar storage location problem arising in the stowage planning for Roll-on/Roll-off ships. A ship is set to sail along a predefined voyage where given cargoes are to be ... -
An effective heuristic for solving a combined cargo and inventory routing problem in tramp shipping
Hemmati, Ahmad; Stålhane, Magnus; Hvattum, Lars Magnus; Andersson, Henrik (Journal article; Peer reviewed, 2015)In this paper a vendor managed inventory (VMI) service in tramp shipping is considered. VMI takes advantage of introducing flexibility in delivery time and cargo quantities by transferring inventory management and ordering ... -
An Extended Model and a New Matheuristic for the Offshore Helicopter Routing Problem with Split Deliveries
Oppedal, Eivind; Thorstein, Kristian Løkka (Master thesis, 2020)Olje- og gassindustrien er den største industrien i Norge, og det er forventet at den forblir viktig i flere tiår fremover. Utvinningen av petroleum foregår på den norske kontinentalsokkelen, og offshore-installasjoner er ... -
Analyzing and Predicting Performances and Playing Styles of Football Players
Gundersen, Lars Hegg; Kim, Markus Malum; Strobel, Eliot Karlsen (Master thesis, 2022)Interessen rundt utnyttelse av dataanalyse som konkurransefortrinn i fotballen er økende, noe som gjenspeiles gjennom stadig flere publiserte artikler. Arbeidet i denne masteroppgaven er sentrert rundt modeller utviklet ... -
Analyzing passing networks in association football based on the difficulty, risk, and potential of passes
Wiig, Astrid Salte; Håland, Else Marie; Stålhane, Magnus; Hvattum, Lars Magnus (Journal article; Peer reviewed, 2019)This paper investigates the use of network analysis to identify key players on teams, and patterns of passing within teams, in association football. Networks are constructed based on passes made between players, ... -
Arc Routing with Precedence Constraints: An Application to Snow Plowing Operations
Gundersen, Anders Holmen; Johansen, Magnus; Kjær, Benjamin; Andersson, Henrik; Stålhane, Magnus (Journal article; Peer reviewed, 2017)In this paper we present an arc routing problem with precedence constraints, with a focus on its application to snow plowing operations in Norway. The problem studied considers the clearing of snow from a network of roads, ... -
A branch-and-cut embedded matheuristic for the inventory routing problem
Skålnes, Jørgen; Vadseth, Simen Tung; Andersson, Carl Henrik; Stålhane, Magnus (Peer reviewed; Journal article, 2023)This paper presents an improved version of the solution method that won the inventory routing problem track of the DIMACS Implementation Challenge. The solution method is a branch-and-cut embedded matheuristic where a ... -
A Branch-and-Price Algorithm for the Liner Shipping Network Design Problem
Thun, Kristian; Andersson, Henrik; Stålhane, Magnus (Peer reviewed; Journal article, 2020)Maritime transportation is the backbone of the global economy and one of its most important segments is liner shipping. To design a liner shipping network is notoriously difficult but also very important since an efficient ... -
Combining hybrid genetic search with ruin-and-recreate for solving the capacitated vehicle routing problem
Simensen, Martin; Hasle, Geir; Stålhane, Magnus (Peer reviewed; Journal article, 2022)The Capacitated Vehicle Routing Problem (CVRP) has been subject to intense research efforts for more than sixty years. Yet, significant algorithmic improvements are still being made. The most competitive heuristic solution ...