Blar i SINTEF Open på forfatter "Hasle, Geir"
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Heuristic Strategies for Solving Large-Scale Vehicle Routing Problems
Hasle, Geir (Lecture, 2009) -
How to program efficient optimization algorithms on Graphics Processing Units - The Vehicle Routing Problem as a case study
Hasle, Geir; Schulz, Christian Ferdinand (Lecture, 2011)Modern PCs are parallel and heterogeneous, with a growing number of cores for task parallelism and ever more powerful data parallel accelerators. The glory days when you could go to the beach for two years, and your ... -
Industrial Aspects and Literature Survey: Combined Inventory Management and Routing
Andersson, Henrik; Hoff, Arild; Christiansen, Marielle; Hasle, Geir; Løkketangen, Arne (Research report, 2008)This paper describes industrial aspects of combined inventory management and routing, and gives a comprehensive literature review of the current state of the research. First there is a classification of types of supply ... -
Industrial Aspects and Literature Survey: Fleet Composition and Routing
Hoff, Arild; Andersson, Henrik; Christiansen, Marielle; Hasle, Geir; Løkketangen, Arne (Research report, 2008)The purpose of this paper is to describe industrial aspects of combined fleet composition and routing in maritime and road-based transportation, and to present the current status of research in the form of a comprehensive ... -
Industrial Vehicle Routing
Hasle, Geir (Lecture, 2008)Solving the Vehicle Routing Problem (VRP) is a key to efficiency in transportation and supply chain management. The VRP is a computationally hard problem that comes in many guises. The VRP literature contains thousands of ... -
International Workshop on Vehicle Routing in Practice (VIP’08) - Oppsummering
Hasle, Geir (Research report, 2008)Den internasjonale konferansen Vehicle Routing in Practice 2008 (VIP’08) ble gjennomført på en meget vellykket måte 12.-14. juni 2008 på Soria Moria konferansehotell i Oslo. Workshopen hadde 28 deltakere, hvorav 15 meget ... -
Key Performance Indicators in design for sustainable rural transport
Karahasanovic, Amela; Culén, Alma Leora; Skjetne, Jan Håvard; Hasle, Geir (Peer reviewed; Journal article, 2020)Rural areas are less attractive and sustainable for people and businesses alike, partially due to inadequate transport services. In this paper, we address transport-related challenges in rural Norway. The focal aspect of ... -
Neighborhood Evaluation on GPU for the DCVRP - Discrete optimization needs heterogeneous computing
Schulz, Christian Ferdinand; Hasle, Geir (Lecture, 2011)For many applications of vehicle routing, there is still a large gap between the requirements and the performance of today’s decision support systems. Although there has been a tremendous increase in the ability to solve ... -
Optimization-based decision support within healthcare and transportation
Hasle, Geir (Lecture, 2010) -
Parallel Local search for the CVRP on the GPU
Schulz, Christian Ferdinand; Hasle, Geir; Kloster, Oddvar; Riise, Atle; Smedsrud, Morten (Lecture, 2010)For many applications of optimized transportation management, there is still a large gap between the requirements and the performance of today’s decision support systems. Vehicle routing is no exception. Although there has ... -
Routing Applications in Newspaper Delivery
Hasle, Geir (Research report, 2012)The goal of this report is to give an up-to-date account of routing applications in the newspaper business. We describe the newspaper supply chain, and focus on the “last mile” distribution that has been advocated as an ... -
Solving Node Edge Arc Routing Problems in the Distribution of Media Products
Flatberg, Truls; Kloster, Oddvar; Nilssen, Eivind Jodaa; Smedsrud, Morten; Hasle, Geir (Lecture, 2009)There is a strong pressure on economy in the distribution of media products. Two important remedies are more efficient carrier routes and distribution of side products. Both call for effective and dynamic route design and ... -
Stuck between a rock and a hard place - The pleasures of practicing OR in a contract research organization
Hasle, Geir (Lecture, 2010)In this talk I will share some personal experiences and thoughts. My career has followed an old-fashioned scheme. The contract research organization SINTEF has been my employer for more than 30 years. My normal defence is ... -
“The Beach Law” does not hold any more - Discrete optimization needs heterogeneous computing
Hasle, Geir; Schulz, Christian Ferdinand; Hagen, Trond Runar (Lecture, 2011)Modern PCs are parallel and heterogeneous, with a growing number of cores for task parallelism and ever more powerful data parallel accelerators. The glory days when you could go to the beach for two years, and your ... -
The Node Edge Arc Routing Problem - applications and heuristics
Hasle, Geir; Flatberg, Truls; Kloster, Oddvar; Nilssen, Eivind Jodaa; Smedsrud, Morten (Lecture, 2009)In the VRP literature, the Arc Routing Problem is often advocated as an adequate model for routing applications such as newspaper delivery and garbage collection. We argue that a better model is the Node Edge Arc Routing ... -
Using Heterogeneous Computing for Solving Vehicle Routing Problems
Hasle, Geir; Kloster, Oddvar; Smedsrud, Morten (Lecture, 2010)In the talk, we briefly explain modern PC architectures and the general principles of heterogeneous computing. We illustrate how multi-core and GPU computing may be utilized for higher performance and more robust VRP ... -
Utslippsfrie byggeplasser. State of the art. Veileder for innovative anskaffelsesprosesser
Fufa, Selamawit Mamo; Mellegård, Sofie Elisabet; Wiik, Marianne Rose Kjendseth; Flyen, Cecilie; Hasle, Geir; Bach, Lukas; González, Pablo; Løe, Erlend Salberg; Idsøe, Flemming (SINTEF Fag;49, Research report, 2018)Forprosjektet om utslippsfrie byggeplasser har hovedfokus på fagfeltene samferdsel og transport og skal bidra til at Oslo kommune kan stille bedre krav til utslippsfrie byggeplasser gjennom innovative offentlige anskaffelser ... -
Vehicle Routing in Practice
Hasle, Geir (Lecture, 2010)Solving the Vehicle Routing Problem (VRP) is a key to efficiency in transportation and supply chain management. The VRP is a computationally hard problem that comes in many guises. The VRP literature contains thousands of ...