Blar i NTNU Open på forfatter "Stålhane, Magnus"
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Composing vessel fleets for maintenance at offshore wind farms by solving a dual-level stochastic programming problem using GRASP
Bolstad, Kamilla Hamre; Joshi, Manu; Hvattum, Lars Magnus; Stålhane, Magnus (Peer reviewed; Journal article, 2022)Background: Dual-level stochastic programming is a technique that allows modelling uncertainty at two different levels, even when the time granularity differs vastly between the levels. In this paper we study the problem ... -
Creating Robust and Cost-Efficient Line Plans for the Oslo Metro Using Combinatorial Benders' Decomposition
Harbo, Jette Ås; Line, Nora Louise Bråtveit; Valderhaug, Astrid Råd (Master thesis, 2020)I 2019 transporterte T-banen mer enn 119 millioner passasjerer i Oslo og Bærum kommune, og antall reisende er forventet å øke i årene som kommer. Mulighetene for kostnadsreduksjon og reduksjon i klimaavtrykk gjør det ... -
A decomposition solution approach to the troops-to-tasks assignment in military peacekeeping operations
Chaudry, Nadia; Vermedal, Ingunn; Fagerholt, Kjetil; Fauske, Maria Fleischer; Stålhane, Magnus (Peer reviewed; Journal article, 2019)This paper considers the Peacekeeping Troops-to-Tasks Problem (PTTP). The PTTP deals with assigning battlegroup resources to a set of tasks associated with a given peacekeeping mission. The tasks may be spread across several ... -
Determining the Optimal Vessel Fleet for Maintenance of Offshore Wind Farms
Vefsnmo, Hanne Merete (Master thesis, 2013)Today the offshore wind energy industry needs financial support to be profitable.For offshore wind farms to be more competitive against other energy sources, thecosts must be reduced, and this may be achieved by increasing ... -
Developing a Forecast-Based Optimization Model for Fantasy Premier League
Kristiansen, Bjørn Kåre; Gupta, Akash; Eilertsen, William (Master thesis, 2018)Fantasy Premier League is an online game where participants assemble imaginary teams consisting of real-life football players competing in the top tier of English football, the Premier League. Participants gain points ... -
Evaluating Association Football Player Performances Using Markov Models
Haave, Haakon Sveiverud; Høiland, Håkon (Master thesis, 2017)Historically, association football player performance evaluation has been based on subjective opinions and intuition, which is subject to cognitive bias. This thesis develops data driven player ratings, argued to tend ... -
Evaluating passing ability in association football
Håland, Else Marie; Wiig, Astrid Salte; Stålhane, Magnus; Hvattum, Lars Magnus (Journal article; Peer reviewed, 2019)In this paper, the passing ability of football players is determined by building three generalised additive mixed models that each explains a different aspect of a pass’ success: difficulty, risk and potential. The models ... -
Evaluating Passing Behaviour in Association Football
Håland, Else Marie; Wiig, Astrid Salte (Master thesis, 2018)Association football is the world's most popular sport, and there is a growing interest in the use of statistical methods to support decision-making within the sport to gain competitive advantages. In this thesis, the ... -
Evaluating the effectiveness of different network flow motifs in association football
Håland, Else Marie; Wiig, Astrid Salte; Hvattum, Lars Magnus; Stålhane, Magnus (Peer reviewed; Journal article, 2020)In association football, a network flow motif describes how distinct players from a team are involved in a passing sequence. The flow motif encodes whether the same players appear several times in a passing sequence, and ... -
Exact and heuristic solution approaches for a routing problem found within snow plowing operations
Johansen, Magnus; Gundersen, Anders Holmen; Kjær, Benjamin Steffen (Master thesis, 2017)We consider both exact and heuristic solution approaches, which are described, implemented, and evaluated. Most effort is given to a column generation method and a hybrid genetic algorithm with diversity management. -
An exact solution method for a rich helicopter flight scheduling problem arising in offshore oil and gas logistics
Nafstad, Gaute Messel; Haugseth, Amund; Høyland, Vebjørn; Stålhane, Magnus (Peer reviewed; Journal article, 2020)This paper studies the problem of creating an optimal flight schedule for a heterogeneous fleet of helicopters tasked with transporting personnel to, from, and between offshore installations. The problem can be modelled ... -
Fleet Deployment & Disruption Management in RoRo Liner Shipping
Olsen, Henrik Andre; Nokhart, Håkon Stavn; Fischer, Andreas Sola (Master thesis, 2015)This master thesis consists of two parts. In Part I, the maritime fleet deployment problem for a major Roll-on Roll-off shipping case company is studied. The objective of the fleet deployment problem is to assign vessels ... -
Global Optimisation of Multi-Plant Manganese Alloy Production
Digernes, Martin Naterstad; Rudi, Lars; Andersson, Henrik; Stålhane, Magnus; Wasbø, Stein O.; Knudsen, Brage Rugstad (Journal article; Peer reviewed, 2017)This paper studies the problem of multi-plant manganese alloy production. The problem consists of finding the optimal furnace feed of ores, fluxes, coke, and slag that yields output products which meet customer specifications, ... -
Heuristic Methods for a Periodic Multi-Trip Vehicle Routing Problem with Time Windows in the Food Distribution Industry
Bakken, Fride Elise; Glimsdal, Brynjar; Tvinnereim, Lars Kåre (Master thesis, 2020)Det periodiske multi-trip vehicle routing problemet med tidsvinduer (PMTVRPTW), inkompatible varer, og en heterogen kjøretøysflåte oppstår når ASKO, det ledende selskapet for dagligvaredistribusjon i Norge, planlegger ... -
Heuristically Solving Large-Scale Location Routing Problems with Stochastic Customer Presence for Online Grocery Delivery
Gulaker, David; Indbjo, Johannes Log; Sørensen, Mathias Waage (Master thesis, 2023)Denne oppgaven presenterer en studie av heuristiske optimeringsmetoder for å løse et stort og komplekst "location-routing"-problem (LRP) med stokastisk kundetilstedeværelse, i samarbeid med det norske nettbaserte ... -
Heuristics for a Dual-Level Stochastic Fleet Size and Mix Problem for Maintenance Operations at Offshore Wind Farms
Joshi, Manu; Bolstad, Kamilla Hamre (Master thesis, 2016)Due to high costs, the offshore wind industry is currently not economically viable on its own. For offshore wind to be a profitable future energy source, it is therefore necessary to find methods for reducing costs. ... -
An improved formulation for the inventory routing problem with time-varying demands
Skålnes, Jørgen; Andersson, Henrik; Desaulniers, Guy; Stålhane, Magnus (Journal article; Peer reviewed, 2022)The Inventory Routing Problem (IRP) is a broad class of complex routing problems where the quanti- ties of delivered products must also be determined. In this paper, we consider the classic IRP where a single supplier must ... -
In-game Betting and the FA English Premier League: The Contribution of Prediction Models
Andersen, Robin; Hassel, Vegard (Master thesis, 2019)Den samlede verdien på markedet for live-betting på kamper i FA English Premier League øker raskt. For å kunne tjene penger i et slikt marked trenger man, som i alle finansielle markeder, pålitelig informasjon on fremtidige ... -
In-game Betting and the FA English Premier League: The Contribution of Prediction Models
Andersen, Robin; Hassel, Vegard (Master thesis, 2019)Den samlede verdien på markedet for live-betting på kamper i FA English Premier League øker raskt. For å kunne tjene penger i et slikt marked trenger man, som i alle finansielle markeder, pålitelig informasjon on fremtidige ... -
In-game betting and the Kelly criterion
Andersen, Robin; Hassel, Vegard; Hvattum, Lars Magnus; Stålhane, Magnus (Peer reviewed; Journal article, 2020)When a bet with a positive expected return is available, the Kelly criterion can be used to determine the fraction of wealth to wager so as to maximize the expected logarithmic return on investment. Several variants of the ...