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Research Output 2000 2019

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Article
2019

Background and enrollment characteristics of students with autism in higher education

Bakker, T., Krabbendam, L., Bhulai, S. & Begeer, S., 1 Nov 2019, In : Research in autism spectrum disorders. 67, p. 1-12 12 p., 101424.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
Autistic Disorder
Students
Education
Autism Spectrum Disorder
Information Systems

Optimizing barge utilization in hinterland container transportation

Zweers, B. G., Bhulai, S. & van der Mei, R. D., Apr 2019, In : Naval Research Logistics. 66, 3, p. 253-271 19 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
Barges
Integer Program
Container
Linear Program
Containers
2018

Ambulance dispatch center pilots proactive relocation policies to enhance effectiveness

Van Buuren, M., Jagtenberg, C., Van Barneveld, T., Van Der Mei, R. & Bhulai, S., May 2018, In : Interfaces. 48, 3, p. 235-246 12 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Ambulances
Relocation
Statistics
Emergency

A novel use of value iteration for deriving bounds for threshold and switching curve optimal policies

Ertiningsih, D., Bhulai, S. & Spieksma, F., Dec 2018, In : Naval Research Logistics. 65, 8, p. 638-659 22 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
Value Iteration
Optimal Policy
Queueing
Curve
Monotonic sequence

Control of a tandem queue with a startup cost for the second server

Hristov, A., Bhulai, S., van der Mei, R. D. & Bosman, J. W., 3 Jul 2018, In : Stochastic Models. 34, 3, p. 362-374 13 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Tandem Queues
Plant startup
Start-up
Servers
Server

Crime forecasting in small city blocks using a general additive spatio-temporal model

Mahfoud, M., Bhulai, S. & van der Mei, R. D., 30 Dec 2018, In : International Journal on Advances in Security. 11, 3&4, p. 214-222 9 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Crime

Demand-point constrained EMS vehicle allocation problems for regions with both urban and rural areas

van Buuren, M., van der Mei, R. & Bhulai, S., Sep 2018, In : Operations Research for Health Care. 18, p. 65-83 19 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Ambulances
Costs and Cost Analysis
Budgets
Health Care Costs
Netherlands

Dynamic coordination of the New York City taxi to optimize the revenue of the taxi service

Li, P. K. J., Bhulai, S. & van Essen, J. T., 2018, In : International Journal on Advances in Intelligent Systems. 11, 3&4, p. 156-167 12 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Carbon
Costs

Real-time ambulance relocation: Assessing real-time redeployment strategies for ambulance relocation

van Barneveld, T., Jagtenberg, C., Bhulai, S. & van der Mei, R., 1 Jun 2018, In : Socio-Economic Planning Sciences. 62, June, p. 129-142 14 p.

Research output: Contribution to JournalArticleAcademicpeer-review

move
relocation
Emergency
Response Time
medical services

Throughput and bottleneck analysis of tandem queues with nested sessions

Hristov, A., Bosman, J. W., Van Der Mei, R. D. & Bhulai, S., Jul 2018, In : Probability in the Engineering and Informational Sciences. 32, 3, p. 396-408 13 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Tandem Queues
Throughput
Servers
Server
Performance Measurement
2017

Compliance tables for an EMS system with two types of medical response units

van Barneveld, T. C., van der Mei, R. D. & Bhulai, S., 2017, In : Computers and Operations Research. 80, April, p. 68-81

Research output: Contribution to JournalArticleAcademicpeer-review

Ambulances
Emergency
Compliance
Tables
Relocation

EMS call center models with and without function differentiation: a comparison

van Buuren, M., Kommer, G. J., van der Mei, R. D. & Bhulai, S., 2017, In : Operations Research for Health Care. 12, March, p. 16-28

Research output: Contribution to JournalArticleAcademicpeer-review

Emergency Medical Services
Ambulances
Triage
Communication
Call Centers

Predicting candidate uptake on individual online vacancies and vacancy portfolios

de Ruijt, C. A. M., Bhulai, S., Gorissen, B. L., Rusman, H. & Willemsens, L., 2017, In : International Journal on Advances in Software. p. 132 142 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Vacancy
Shortage
Job seeker
Analytical techniques
Labour market
2016

Dynamic ambulance dispatching: is the closest-idle policy always optimal?

Jagtenberg, C. J., Bhulai, S. & van der Mei, R. D., 2016, In : Health Care Management Science. p. 1-15

Research output: Contribution to JournalArticleAcademicpeer-review

Ambulances
Reaction Time
Benchmarking
Emergency Medical Services
Netherlands

How to improve a team's position in the FIFA ranking? - A simulation study

Lasek, J., Szlavik, Z., Gagolewski, M. & Bhulai, S., 2016, In : Journal of Applied Statistics. 43, 7, p. 1349-1368

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
Ranking
Simulation Study
Globe
Optimal Scheduling
Decision problem

The effect of ambulance relocations on the performance of ambulance service providers

van Barneveld, T. C., Bhulai, S. & van der Mei, R. D., 2016, In : European Journal of Operational Research. 252, 1, p. 257-269

Research output: Contribution to JournalArticleAcademicpeer-review

Ambulances
Relocation
Response Time
Configuration
Bottleneck Problem

Value function discovery in Markov Decision Processes with evolutionary algorithms

Onderwater, M., Bhulai, S. & van der Mei, R. D., 2016, In : IEEE Transactions on Systems, Man and Cybernetics: Systems. 46, 9, p. 1190-1201

Research output: Contribution to JournalArticleAcademicpeer-review

Evolutionary algorithms
2015

A dynamic ambulance management model for rural areas

van Barneveld, T. C., Bhulai, S. & van der Mei, R. D., 2015, In : Health Care Management Science. p. 1-22

Research output: Contribution to JournalArticleAcademicpeer-review

Ambulances
Guideline Adherence
Aptitude
Reaction Time

An efficient heuristic for real-time ambulance redeployment

Jagtenberg, C. J., Bhulai, S. & van der Mei, R. D., 2015, In : Operations Research for Health Care. 4, p. 27-35

Research output: Contribution to JournalArticleAcademicpeer-review

Ambulances
Benchmarking
Emergency Medical Services
Accidents
Heuristics

Cost-Efficient Allocation of Additional Resources for the Service Placement Problem in Next-Generation Internet

Ma, D., Onderwater, M., Wetzels, F., Hoekstra, G. J., van der Mei, R. D., Bhulai, S. & Zhuang, L., 2015, In : Mathematical Problems in Engineering. p. 517409-517409

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
Placement
Internet
Iterative Algorithm
Resources
Costs

Dynamic server assignment in an extended machine-repair model

Dorsman, J. L., Bhulai, S. & Vlasiou, M., 2015, In : IIE Transactions. 47, 4, p. 392-413

Research output: Contribution to JournalArticleAcademicpeer-review

Repair
Servers
Queueing theory
Queueing networks
Decision theory

Learning optimal policies in MDPs with value function discovery

Onderwater, M., Bhulai, S. & van der Mei, R. D., 2015, In : ACM Sigmetrics Performance Evaluation Review. 43, 2, p. 7-9

Research output: Contribution to JournalArticleAcademicpeer-review

On the control of queueing systems with aging state information

Onderwater, M., Bhulai, S. & van der Mei, R. D., 2015, In : Stochastic Models. 31, 4, p. 588-617

Research output: Contribution to JournalArticleAcademicpeer-review

Queueing System
Aging of materials
Controllers
Controller
Markov Decision Process

Optimal appointment scheduling in continuous time: the lag order approximation method

Vink, W., Kuiper, A., Kemper, B. & Bhulai, S., 2015, In : European Journal of Operational Research. 240, 1, p. 213-219

Research output: Contribution to JournalArticleAcademicpeer-review

Optimal Scheduling
Approximation Methods
Continuous Time
Scheduling
Schedule

Parametric replenishment policies for inventory systems with lost sales and fixed order cost

Bijvank, M., Bhulai, S. & Huh, W. T., 2015, In : European Journal of Operational Research. 241, 2, p. 381-390

Research output: Contribution to JournalArticleAcademicpeer-review

Lost Sales
Inventory Systems
Sales
Inventory control
Costs
2014

Modelling of Trends in Twitter Using Retweet Graph Dynamics

ten Thij, M. C., Ouboter, T., Worm, D. T. H., van den Berg, J. L., Bhulai, S. & Litvak, N., 2014, In : Lecture Notes in Computer Science. 2014, 8882, p. 132-147

Research output: Contribution to JournalArticleAcademicpeer-review

Dynamic Graphs
Graph in graph theory
Modeling
Connected Components
User Behavior

On structural properties of the value function for an unbounded jump Markov process with an application to a processor-sharing retrial queue

Bhulai, S., Brooms, A. C. & Spieksma, F. M., 2014, In : Queueing Systems. 76, 4, p. 425-446

Research output: Contribution to JournalArticleAcademicpeer-review

Markov Jump Processes
Retrial Queue
Processor Sharing
Value Function
Structural Properties
2013

A simple index rule for efficient traffic splitting over parallel wireless networks with partial information

Bosman, J. W., Hoekstra, G., van der Mei, R. D. & Bhulai, S., 2013, In : Performance Evaluation. 70, 10, p. 889-899

Research output: Contribution to JournalArticleAcademicpeer-review

Partial Information
Wireless Networks
Wireless networks
Traffic
Network performance

Markdown policies for optimizing revenue towards optimal pricing in retail

Meijer, R., Bhulai, S. & Pieffers, M., 2013, In : Journal of Business and Retail Management Research. 8, 1, p. 42-52

Research output: Contribution to JournalArticleAcademicpeer-review

Optimal pricing in retail: a Cox regression approach

Meijer, R. & Bhulai, S., 2013, In : International Journal of Retail and Distribution Management. 41, 4, p. 311-320

Research output: Contribution to JournalArticleAcademicpeer-review

Retail
Optimal pricing
Retailers
Design methodology
Dynamic pricing

Optimal resource allocation in survey designs

Calinescu, I. M., Bhulai, S. & Schouten, J. G., 2013, In : European Journal of Operational Research. 226, 1, p. 115-121

Research output: Contribution to JournalArticleAcademicpeer-review

Survey Design
Optimal Allocation
Resource Allocation
Resource allocation
Resources

Structural properties of the optimal resource allocation policy for single-queue systems

Yang, R., Bhulai, S. & van der Mei, R. D., 2013, In : Annals of Operations Research. 202, 1, p. 211-233

Research output: Contribution to JournalArticleAcademicpeer-review

Structural properties
Resource allocation
Queue
Resources
Optimization problem

The predictive power of ranking systems in association football

Lasek, J., Szlavik, Z. & Bhulai, S., 2013, In : International Journal of Applied Pattern Recognition. 1, 1, p. 26-46

Research output: Contribution to JournalArticleAcademicpeer-review

2012

Approximate Dynamic Programming techniques for skill-based routing in call centres

Roubos, D. & Bhulai, S., 2012, In : Probability in the Engineering and Informational Sciences. 26, 4, p. 581-591

Research output: Contribution to JournalArticleAcademicpeer-review

Approximate Dynamic Programming
Call Centres
Dynamic programming
Routing
Polynomial approximation

Dynamic traffic splitting to parallel networks with partial information: a Bayesian approach

Bhulai, S., Hoekstra, G., Bosman, J. W. & van der Mei, R. D., 2012, In : Performance Evaluation. 69, 1, p. 41-52

Research output: Contribution to JournalArticleAcademicpeer-review

Traffic Dynamics
Partial Information
Bayesian Approach
Wireless Networks
Wireless networks

Optimal balanced control for call centers

Bhulai, S., Yuan, T., Heidergott, B. F. & van der Laan, D. A., 2012, In : Annals of Operations Research. 201, 1, p. 39-62

Research output: Contribution to JournalArticleAcademicpeer-review

Call centres
Mixed strategy
Control strategy
Optimal control
Assignment

Optimal job splitting in parallel processor sharing queues

Hoekstra, G., van der Mei, R. D. & Bhulai, S., 2012, In : Stochastic Models. 28, 1, p. 144-166

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
Processor Sharing
Parallel Processors
Multipath
Queue
Enhancement

Optimal patient and personnel scheduling policies for care-at-home service facilities

Out, P. M., Bhulai, S. & van Meersbergen, M., 2012, In : European Journal of Operational Research. 219, 3, p. 557-563

Research output: Contribution to JournalArticleAcademicpeer-review

Scheduling Policy
Scheduling
Personnel
Heuristics
Reservation

Parameter-dependent convergence bounds and complexity measure for a class of conceptual hydrological models

Pande, S., Bastidas, L. A., Bhulai, S. & McKee, M., 2012, In : Journal of Hydroinformatics. 14, 2, p. 443-463

Research output: Contribution to JournalArticleAcademicpeer-review

parameter
connectivity
rate
2011

Optimal resource allocation for multi-queue systems with a shared server pool

Yang, R., Bhulai, S. & van der Mei, R. D., 2011, In : Queueing Systems. 68, 2, p. 133-163 31 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
Optimal Allocation
Resource Allocation
Resource allocation
Queue
Servers

Optimal resource allocation for time-reservation systems

Yang, R., Bhulai, S., van der Mei, R. D. & Seinstra, F. J., 2011, In : Performance Evaluation. 68, 5, p. 414-428

Research output: Contribution to JournalArticleAcademicpeer-review

Reservation systems
Reservation
Optimal Allocation
Resource Allocation
Resource allocation

Optimal resource allocation in synchronized multi-tier Internet services

Verhoef, C. G., Bhulai, S. & van der Mei, R. D., 2011, In : Performance Evaluation. 68, 11, p. 1072-1084

Research output: Contribution to JournalArticleAcademicpeer-review

Optimal Allocation
Resource Allocation
Resource allocation
Synchronization
Internet
2010
Approximate Dynamic Programming
Call Centres
Retrials
Time-varying Systems
Queueing System
2009

Dynamic routing policies for multi-skill call centers

Bhulai, S., 2009, In : Probability in the Engineering and Informational Sciences. 23, 1, p. 101-119 19 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
Call Centres
Dynamic Routing
Scenarios
Routing
Minimise

Dynamic thread assignment in web server performance optimization

van der Weij, W., Bhulai, S. & van der Mei, R. D., 2009, In : Performance Evaluation. 66, 6, p. 301-310 10 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Performance Optimization
Web Server
World Wide Web
Thread
Assignment

Gamma frailty model for linkage analysis with application to interval-censored migraine data

Jonker, M. A., Bhulai, S., Boomsma, D. I., Ligthart, R. S. L., Posthuma, D. & van der Vaart, A. W., 2009, In : Biostatistics. 10, 1, p. 187-200

Research output: Contribution to JournalArticleAcademicpeer-review

File
Linkage Analysis
Interval-censored Data
Frailty Model
Heritability
Gene

Session-level load balancing for high-dimensional systems

Roubos, D. & Bhulai, S., 2009, In : IEEE Transactions on Automatic Control. 54, 8, p. 2018-2023

Research output: Contribution to JournalArticleAcademicpeer-review

Resource allocation
Dynamic programming
Servers
Experiments
2008

A method for approximating the variance of the sojourn times in star-shaped queueing networks

van der Mei, R. D., de Wilde, A. R. & Bhulai, S., 2008, In : Stochastic Models. 24, 3, p. 487-501

Research output: Contribution to JournalArticleAcademicpeer-review

Queueing networks
Sojourn Time
Queueing Networks
Stars
Star

A simple staffing method for multi-skill call centers

Pot, S. A., Bhulai, S. & Koole, G. M., 2008, In : Manufacturing and Service Operations Management. 10, 3, p. 421-428

Research output: Contribution to JournalArticleAcademicpeer-review

Call centres
Staffing
Management decisions
Scenarios
Capacity management