World's Best Scientists 2026 revealed!

D-Index & Metrics

Mathematics

D-Index
40
Citations
8843
World Ranking
2012
National Ranking
26

Engineering and Technology

D-Index
43
Citations
9146
World Ranking
6055
National Ranking
117

Overview

What is he best known for?

The fields of study he is best known for:

  • Statistics
  • Computer network
  • Artificial intelligence

His scientific interests lie mostly in Queueing theory, Mathematical optimization, Computer network, Dynamic programming and Distributed computing. His Queueing theory research incorporates themes from Dimensioning, Markov chain, Operations management and Operations research. Ger Koole interconnects Appointment scheduling and Local search, Local search procedure in the investigation of issues within Operations research.

The Mathematical optimization study combines topics in areas such as Real-time computing, Dynamic priority scheduling, Fair-share scheduling, Queue and Server. His Optimized Link State Routing Protocol, Mobility model and Mobile ad hoc network study in the realm of Computer network connects with subjects such as Relay. His research integrates issues of Node, Shared resource and Bellman equation in his study of Dynamic programming.

His most cited work include:

  • Commissioned Paper: Telephone Call Centers: Tutorial, Review, and Research Prospects (1096 citations)
  • The message delay in mobile ad hoc networks (577 citations)
  • Queueing models of call centers: An introduction (283 citations)

What are the main themes of his work throughout his whole career to date?

Ger Koole mainly investigates Mathematical optimization, Operations research, Queueing theory, Queue and Dynamic programming. His studies deal with areas such as Stochastic process, Real-time computing, Markov process and Job shop scheduling as well as Mathematical optimization. Ger Koole has researched Operations research in several fields, including Revenue management, Staffing, Scheduling and Reservation.

His work carried out in the field of Queueing theory brings together such families of science as Server and Markov chain. Queue is a subfield of Computer network that Ger Koole explores. His work carried out in the field of Dynamic programming brings together such families of science as Shared resource, Stochastic control and Bellman equation.

He most often published in these fields:

  • Mathematical optimization (30.72%)
  • Operations research (22.88%)
  • Queueing theory (22.22%)

What were the highlights of his more recent work (between 2014-2021)?

  • Operations research (22.88%)
  • Scheduling (12.42%)
  • Revenue (5.23%)

In recent papers he was focusing on the following fields of study:

The scientist’s investigation covers issues in Operations research, Scheduling, Revenue, Staffing and Revenue management. His work deals with themes such as Reservation, Markov decision process, Real-time computing, Queue and Call management, which intersect with Operations research. Markov decision process is often connected to Mathematical optimization in his work.

In his study, Total cost, Service system, Poisson process and Contact center is strongly linked to Multi channel, which falls under the umbrella field of Scheduling. His research integrates issues of Cover, Estimation and Operations management in his study of Staffing. As part of his studies on Service, Ger Koole often connects relevant subjects like Queueing theory.

Between 2014 and 2021, his most popular works were:

  • Costs and effects of Internet cognitive behavioral treatment blended with face-to-face treatment: Results from a naturalistic study (57 citations)
  • Revenue management under customer choice behaviour with cancellations and overbooking (29 citations)
  • Simulation-based optimization of staffing levels in an emergency department (22 citations)

In his most recent research, the most cited papers focused on:

  • Statistics
  • Computer network
  • Algorithm

Ger Koole spends much of his time researching Operations research, Markov decision process, Reservation, Dynamic programming and Mathematical optimization. His studies deal with areas such as Key, Resource allocation and Flexibility as well as Operations research. The concepts of his Reservation study are interwoven with issues in Economies of scale, Control, Real-time computing, Scheduling and Call management.

The Scheduling study combines topics in areas such as Call control, Multi channel, Callback, Poisson process and Service system. Ger Koole interconnects Queueing theory, Layered queueing network, Markov process and Curse of dimensionality in the investigation of issues within Dynamic programming. His research in Mathematical optimization is mostly focused on Heuristics.

Best Publications

  • Commissioned Paper: Telephone Call Centers: Tutorial, Review, and Research Prospects

    Noah Gans;Ger Koole;Avishai Mandelbaum

  • The message delay in mobile ad hoc networks

    Robin Groenevelt;Philippe Nain;Ger Koole

  • Queueing models of call centers: An introduction

    Ger Koole;Avishai Mandelbaum

  • Optimal outpatient appointment scheduling

    Guido C. Kaandorp;Ger Koole

  • Marked point processes as limits of Markovian arrival streams

    Søren Asmussen;Ger Koole

  • Managing uncertainty in call centres using Poisson mixtures

    Geurt Jongbloed;Ger Koole

  • Modeling the emergency cardiac in-patient flow: an application of queuing theory.

    Arnoud M. de Bruin;A. C. van Rossum;M. C. Visser;G. M. Koole

  • Dimensioning hospital wards using the Erlang loss model

    A. M. de Bruin;A. M. de Bruin;R. Bekker;L. van Zanten;G. M. Koole

  • Structural results for the control of queueing systems using event-based dynamic programming

    Ger Koole

  • On optimal call admission control in resource-sharing system

    E. Altman;T. Jimenez;G. Koole

  • Sample-Path Analysis of Queueing Systems

    G.M. Koole;M. El-Taha;S. Stidham

  • A queueing model for call blending in call centers

    S. Bhulai;G. Koole

  • Simple Methods for Shift Scheduling in Multiskill Call Centers

    Sandjai Bhulai;Ger Koole;Auke Pot

  • Performance analysis and optimization in customer contact centers

    G. Koole

  • Monotonicity in Markov Reward and Decision Chains: Theory and Applications

    Ger Koole

  • Message delay in MANET

    Robin Groenevelt;Philippe Nain;Ger Koole

  • Costs and effects of Internet cognitive behavioral treatment blended with face-to-face treatment: Results from a naturalistic study

    Robin M.F. Kenter;Peter M. van de Ven;Pim Cuijpers;Ger Koole

  • On the Optimality of the Generalized Shortest Queue Policy

    Arie Hordijk;Ger Koole

  • Resource allocation in grid computing

    Ger Koole;Rhonda Righter

  • Queueing-theoretic solution methods for models of parallel and distributed systems

    O.J. Boxma;G.M. Koole;Zhen Liu

  • Managing uncertainty in call centers using Poisson mixtures.

    G. Jongbloed;G.M. Koole

Frequent Co-Authors

Eitan Altman
Eitan Altman French Institute for Research in Computer Science and Automation - INRIA
Philippe Nain
Philippe Nain French Institute for Research in Computer Science and Automation - INRIA
Arie Hordijk
Arie Hordijk Leiden University
Pierre L'Ecuyer
Pierre L'Ecuyer University of Montreal
Yves Dallery
Yves Dallery CentraleSupélec
Marcel G. W. Dijkgraaf
Marcel G. W. Dijkgraaf University of Amsterdam
Bert Zwart
Bert Zwart Eindhoven University of Technology
Don Towsley
Don Towsley University of Massachusetts Amherst
Avishai Mandelbaum
Avishai Mandelbaum Technion – Israel Institute of Technology
Vivek S. Borkar
Vivek S. Borkar Indian Institute of Technology Bombay

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