2025

• Vitenskapelig foredrag
  Sørøy, Brede; Andersson, Carl Henrik; Gullhav, Anders Nordby. (2025) The dynamic integrated project and personnel scheduling problem. ICCL & EUROMar 2025 , Delft/Rotterdam 2025-09-07 - 2025-09-09
• Vitenskapelig foredrag
  Sørøy, Brede; Andersson, Carl Henrik; Gullhav, Anders Nordby. (2025) Several Dantzig-Wolfe reformulations for solving an integrated project and personnel scheduling problem. EURO 2025 , Leeds 2025-06-21 - 2025-06-24

2024

• Vitenskapelig foredrag
  Gullhav, Anders Nordby; Lahrichi, Nadia; Rousseau, Louis-Martin. (2024) Integrated shift and appointment template scheduling for a chemotherapy clinic. Annual Meeting of the EURO Working Group on Operational Research Applied to Health Services (ORAHS) 2024 , Torino 2024-07-14 - 2024-07-20
• Vitenskapelig foredrag
  Gullhav, Anders Nordby; Lahrichi, Nadia; Rousseau, Louis-Martin. (2024) Tactical shift and appointment scheduling for a chemotherapy clinic. NORS annual conference 2024 , Oslo 2024-11-26 - 2024-11-27
• Vitenskapelig foredrag
  Sørøy, Brede; Buan, Benjamin Sølvberg; Andersson, Carl Henrik; Gullhav, Anders Nordby. (2024) An integrated project and personnel scheduling problem using an adaptive large neighbourhood search procedure. PMS 2024 , Bern 2024-04-02 - 2024-04-05
• Vitenskapelig foredrag
  Sørøy, Brede; Andersson, Carl Henrik; Gullhav, Anders Nordby. (2024) Solving an integrated project and personnel scheduling problem using Dantzig–Wolfe decomposition. EURO 2024 , København 2024-06-30 - 2024-07-03
• Vitenskapelig foredrag
  Viana, Joe; Gullhav, Anders Nordby; Obstfelder, Aud Uhlen; Dreyer, Heidi Carin; Holmemo, Marte Daae-Qvale; Døhl, Øystein. (2024) Simulation Modelling for Integrated Health Care Planning. Norwegian Operations Research Society Annual Conference , Oslo 2024-11-26 - 2024-11-27
• Vitenskapelig foredrag
  Sørøy, Brede; Andersson, Carl Henrik; Gullhav, Anders Nordby. (2024) A Dantzig–Wolfe decomposition approach for solving an integrated project and personnel scheduling problem. OR 2024 , München 2024-09-03 - 2024-09-06
• Vitenskapelig foredrag
  Sørøy, Brede; Andersson, Carl Henrik; Gullhav, Anders Nordby. (2024) A Dantzig–Wolfe decomposition-based procedure to solve an integrated project and personnel scheduling problem. Annual conference of the Norwegian Operations Research Society , Oslo 2024-11-26 - 2024-11-27

2023

• Vitenskapelig foredrag
  Gullhav, Anders Nordby; Schiøtz, Mats I.; Tysse, Jostein H.; Hellemo, Lars. (2023) Advance Surgery Scheduling with downstream constraints and cancellations. Annual Meeting of the EURO Working Group on Operational Research Applied to Health Services (ORAHS) , Graz 2023-07-16 - 2023-07-21
• Vitenskapelig foredrag
  Bigharaz, Sara; Andersson, Carl Henrik; Gullhav, Anders Nordby. (2023) A tactical multi-appointment scheduling problem with the integrated resources in outpatient clinic and operating room. 49th Annual Meeting of the EURO Working Group on Operational Research Applied to Health Services 2023-07-16 - 2023-07-21
• Vitenskapelig foredrag
  Sørøy, Brede; Andersson, Carl Henrik; Gullhav, Anders Nordby. (2023) A Dantzig–Wolfe decomposition approach to solve an integrated project and personnel scheduling problem. 2023 INFORMS Annual Meeting , Phoenix 2023-10-15 - 2023-10-18
• Vitenskapelig foredrag
  Sørøy, Brede; Buan, Benjamin Sølvberg; Gullhav, Anders Nordby. (2023) An adaptive large neighbourhood search procedure for solving an integrated project and personnel scheduling problem. OR 2023 , Hamburg 2023-08-29 - 2023-09-01
• Vitenskapelig foredrag
  Gullhav, Anders Nordby; Andersson, Carl Henrik; Riise, Atle. (2023) Master and activity scheduling in surgical departments - Managing waiting lists across units ans specialties. Operational Research Applied To Health Services , Graz, Austria 2023-07-16 - 2023-07-21

2022

• Vitenskapelig foredrag
  Bigharaz, Sara; Andersson, Carl Henrik; Gullhav, Anders Nordby. (2022) A blueprint schedule for surgeons considering the integration of outpatient clinic and operating room scheduling. Annual Conference of the Norwegian Operations Research Society 2022-11-29 - 2022-11-30
• Vitenskapelig foredrag
  Bigharaz, Sara; Andersson, Carl Henrik; Gullhav, Anders Nordby. (2022) Designing a surgeon’s blueprint schedule for resource allocation to patient appointment series. 48th Annual Meeting of the EURO Working Group on Operational Research Applied to Health Services 2022-07-17 - 2022-07-22
• Vitenskapelig foredrag
  Sørøy, Brede; Buan, Benjamin Sølvberg; Gullhav, Anders Nordby. (2022) An Integrated Project and Personnel Scheduling Problem. EURO 2022 , Espoo 2022-07-03 - 2022-07-06
• Vitenskapelig foredrag
  Sørøy, Brede; Gullhav, Anders Nordby. (2022) Benefits of Solving the Project and Personnel Scheduling Problems Simultaneously. Annual conference of the Norwegian Operations Research Society , Trondheim 2022-11-29 - 2022-11-30
• Vitenskapelig foredrag
  Langfeldt, Sigurd Sigurdsson; Langholm, Magnus Hauge; Spangelo, Tomas Haugland; Andersson, Henrik; Gullhav, Anders Nordby. (2022) Neural Network Assisted Large Neighborhood Search for Personnel Rostering. Annual conference of the Norwegian Operations Research Society , Trondheim 2022-11-29 - 2022-11-30
• Vitenskapelig foredrag
  Gullhav, Anders Nordby; Langfeldt, Sigurd Sigurdsson; Langholm, Magnus Hauge; Spangelo, Tomas Haugland; Andersson, Henrik. (2022) Integrating Machine Learning in Metaheuristics - an example using a Neural Network Assisted Large Neighborhood Search for Personnel Rostering. COMPAMA Workshop - Learning for optimization , Trondheim 2022-11-28 - 2022-11-28

2021

• Vitenskapelig foredrag
  Sørøy, Brede; Buan, Benjamin Sølvberg; Gullhav, Anders Nordby. (2021) Integrated Project and Personnel Scheduling using Optimisation and Metaheuristic Methods – With Applications in the Construction Industry. Annual conference of the Norwegian Operations Research Society , Bergen 2021-11-17 - 2021-11-18

2020

• Vitenskapelig foredrag
  Gullhav, Anders Nordby; Hellemo, Lars. (2020) Combined outpatient and master surgery scheduling. e-ORAHS , University of Vienna 2020-07-26 - 2020-07-31
• Faglig foredrag
  Gullhav, Anders Nordby. (2020) Planlegging og styring i sykehus. Ledersamling, Psykisk Helsevern Sykehuset Innlandet , Sanderud 2020-02-13 - 2020-02-13
• Vitenskapelig foredrag
  Gullhav, Anders Nordby; Berdal, Tore B.; Nydal, Erlend M.; Andersson, Henrik; Nygreen, Bjørn. (2020) Emergency Department Layout Planning Using Simulation and Optimization. ORAHS 2020 , Digital 2020-07-26 - 2020-07-31

2019

• Faglig foredrag
  Gullhav, Anders Nordby; Rønneberg, Martine Helene; Ingrid, Ødegård; Andersson, Henrik; Nygreen, Bjørn. (2019) Multi-Appointment Scheduling at a Psychiatric Outpatient Clinic. ORAHS 2019 , Karlsruhe 2019-07-28 - 2019-08-02

2018

• Vitenskapelig foredrag
  Gullhav, Anders Nordby; Bovim, Thomas Reiten; Christiansen, Marielle; Hellemo, Lars; Range, Troels Martin. (2018) Master surgery scheduling under uncertainty: a stochastic modelling approach for dimensioning and allocating flexible capacity under a hybrid policy. ORAHS , Oslo 2018-07-29 - 2018-08-03
• Vitenskapelig foredrag
  Gullhav, Anders Nordby; Kvillum, Vilde N.; Vigerust, Anne Marit R.; Andersson, Henrik; Nygreen, Bjørn. (2018) A Matheuristic Approach to the Hospital Facility Layout Problem. International Symposium on Mathematical Programming , Bordeaux 2018-07-01 - 2018-07-06
• Faglig foredrag
  Gullhav, Anders Nordby; Christiansen, Marielle. (2018) Helselogistikk og pasientflyt – optimeringsbasert beslutningsstøtte ved St. Olavs hospital. Fredagsforelesning ved St. Olavs hospital , St. Olavs hospital 2018-05-04 - 2018-05-04

2017

• Vitenskapelig foredrag
  Nygreen, Bjørn; Gullhav, Anders N.; Christiansen, Marielle; Eilertsen, Anders Rogne; Selvaag, Hanna M.. (2017) Appointment Scheduling of MRI examinations. IFORS 2017 , Quebec City 2017-07-17 - 2017-07-21
• Vitenskapelig foredrag
  Gullhav, Anders N.; Christiansen, Marielle; Eilertsen, Anders Rogne; Nygreen, Bjørn; Selvaag, Hanna M.. (2017) Optimizing the Appointment Scheduling at MRI labs. Informs annual meeting 2017 , Houston 2017-10-21 - 2017-10-25
• Vitenskapelig foredrag
  Gullhav, Anders N.; Christiansen, Marielle; Eilertsen, Anders Rogne; Nygreen, Bjørn; Selvaag, Hanna M.. (2017) Decision Support for Appointment Scheduling of MRI Examinations. ORAHS 2017 , Bath 2017-07-30 - 2017-08-04
• Vitenskapelig foredrag
  Gullhav, Anders N.; Christiansen, Marielle; Eilertsen, Anders Rogne; Nygreen, Bjørn; Selvaag, Hanna M.. (2017) Appointment Scheduling at the MRI labs of a Norwegian hospital. Informs Healthcare , Rotterdam 2017-07-25 - 2017-07-28

2016

• Vitenskapelig foredrag
  Nygreen, Bjørn; Gullhav, Anders Nordby; Christiansen, Marielle. (2016) MRI Block Scheduling at a Norwegian Hospital. Gjesteforelesning , Edinburgh 2016-10-14 - 2016-10-14
• Vitenskapelig foredrag
  Nygreen, Bjørn; Gullhav, Anders Nordby. (2016) A Branch and Price Approach for Deployment of Multi-tier Software Services in Clouds. 2016 INFORMS Annual Meeting , Nashville 2016-11-13 - 2016-11-16
• Faglig foredrag
  Gullhav, Anders Nordby; Nygreen, Bjørn. (2016) A Branch and Price Approach for Deployment of Cloud Services. Column Generation 2016 , Buzios 2016-05-22 - 2016-05-25
• Faglig foredrag
  Gullhav, Anders Nordby; Christiansen, Marielle; Nygreen, Bjørn; Aarlott, Mats Mathisen; Medhus, Jon Erik. (2016) MRI Block Scheduling at a Norwegian Hospital. EURO 2016 , Poznan 2016-07-03 - 2016-07-06

2015

• Vitenskapelig foredrag
  Gullhav, Anders N.; Nygreen, Bjørn. (2015) Deployment of Multi-tier Software Services in Clouds – a Branch-and-Price Approach. EURO 2015 , Glasgow 2015-07-12 - 2015-07-15

2014

• Vitenskapelig foredrag
  Nygreen, Bjørn; Gullhav, Anders N.. (2014) A Branch-and-Price Approach for Deployment of Multi-tier Cloud Services. Annual Informs meeting 2014 , San Francisco 2014-11-09 - 2014-11-12
• Vitenskapelig foredrag
  Gullhav, Anders N.; Nygreen, Bjørn. (2014) A Column Generation Approach for Modelling Deployment of Multi-tier Cloud Services. IFORS 2014 , Barcelona 2014-07-13 -
• Vitenskapelig foredrag
  Gullhav, Anders N.; Nygreen, Bjørn. (2014) Solving a Multi-tier Cloud Service Deployment Problem Using Branch-and-Price. Optimization Days 2014 , Montreal 2014-05-05 - 2014-05-07
• Vitenskapelig foredrag
  Nygreen, Bjørn; Gullhav, Anders N.. (2014) Service Deployment in Cloud Data Centres - Problem specification and solution methods. ERGO- Seminar , Edinburgh 2014-06-30 - 2014-06-30
• Vitenskapelig foredrag
  Nygreen, Bjørn; Gullhav, Anders N.. (2014) A Branch-and-Price Approach for Energy-efficient Deployment of Multi-tier Services in Cloud Data Centres. APMOD (Applied Mathematical Optimization and Modelling)2014 , Coventry 2014-04-09 - 2014-04-11

2013

• Vitenskapelig foredrag
  Gullhav, Anders N.; Nygreen, Bjørn. (2013) IP Column Generation for a Service Deployment Problem. Informs Annual Meeting 2013 , Minneapolis 2013-10-06 - 2013-10-09
• Vitenskapelig foredrag
  Gullhav, Anders N.; Nygreen, Bjørn; Heegaard, Poul Einar. (2013) Approximating the Response Time Distribution of Fault-­tolerant Multi­-tier Cloud Services. 2013 IEEE/ACM 6th International Conference on Utility and Cloud Computing (UCC) , Dresden 2013-12-09 - 2013-12-12
• Vitenskapelig foredrag
  Nygreen, Bjørn; Gullhav, Anders N.. (2013) A Branch-and-Price Approach for a Cloud Service Deployment Problem. Nordic Optimisation Symphosium 6 , Chalmers, Gøteborg 2013-10-24 -

2012

• Vitenskapelig foredrag
  Gullhav, Anders N.; Nygreen, Bjørn. (2012) Deployment of Multi-tier Services in Cloud Data Centers confined by Quality of Service (QoS) Requirements. 5th Nordic Optimization Symposium , Trondheim 2012-06-07 - 2012-06-09
• Vitenskapelig foredrag
  Nygreen, Bjørn; Gullhav, Anders N.. (2012) Deployment of Multi-tier ICT Services in Cloud Data Centres. OR54 (Annual British OR Conference) , Edinburgh 2012-09-04 - 2012-09-06
• Vitenskapelig foredrag
  Gullhav, Anders N.; Nygreen, Bjørn. (2012) Service deployment in cloud data centers regarding quality of service requirements. International symposium on mathematical programming (ISMP) , Berlin 2012-08-19 - 2012-08-23

2011

• Vitenskapelig foredrag
  Gullhav, Anders N.; Nygreen, Bjørn; Heegaard, Poul Einar. (2011) Service Deployment Decisions in Cloud Data Centers Based on Service Level Agreements (SLA). Informas 2011 Annual Meeting , Charlotte, NC 2011-11-13 - 2011-11-16