Photo of Ruud Brekelmans
  • Warandelaan 2, Prisma Building, room P 2.209

    5037 AB Tilburg

    Netherlands

19972018
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Research Output 1997 2018

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Discussion paper
2017
439 Downloads (Pure)

Ranking of Unwarranted Variations in Healthcare Treatments

Moes, H., Brekelmans, R., Hamers, H. & Hasaart, F., 2 Feb 2017, Tilburg: CentER, Center for Economic Research, 20 p. (CentER Discussion Paper; vol. 2017-004).

Research output: Working paperDiscussion paperOther research output

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Health insurance
Industry
2015
659 Downloads (Pure)

Globalized Robust Optimization for Nonlinear Uncertain Inequalities

Ben-Tal, A., Brekelmans, R., den Hertog, D. & Vial, J. P., 15 Jun 2015, Tilburg: Department of Econometrics, 29 p. (CentER Discussion Paper; vol. 2015-031).

Research output: Working paperDiscussion paperOther research output

File
methodology
parameter
2014
429 Downloads (Pure)

Adjustable Robust Optimizations with Decision Rules Based on Inexact Revealed Data

de Ruiter, F. J. C. T., Ben-Tal, A., Brekelmans, R. C. M. & den Hertog, D., 2014, Tilburg: Operations research, 31 p. (CentER Discussion Paper; vol. 2014-003).

Research output: Working paperDiscussion paperOther research output

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Information management
Big data
2012
342 Downloads (Pure)

An Impulse Control Approach to Dike Height Optimization (Revised version of CentER DP 2011-097)

Chahim, M., Brekelmans, R. C. M., den Hertog, D. & Kort, P. M., 2012, Tilburg: Operations research, 24 p. (CentER Discussion Paper; vol. 2012-079).

Research output: Working paperDiscussion paperOther research output

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Levees
Maximum principle
Dynamic programming
2011

An Impulse Control Approach to Dike Height Optimization (Replaced by CentER DP 2012-079)

Chahim, M., Brekelmans, R. C. M., den Hertog, D. & Kort, P. M., 2011, Tilburg: Operations research, (CentER Discussion Paper; vol. 2011-097).

Research output: Working paperDiscussion paperOther research output

Levees
Maximum principle
Dynamic programming
2007
259 Downloads (Pure)

How to Determine the Order-up-to Level When Demand is Gamma Distributed with Unknown Parameters

Janssen, E., Strijbosch, L. W. G. & Brekelmans, R. C. M., 2007, Tilburg: Operations research, 18 p. (CentER Discussion Paper; vol. 2007-71).

Research output: Working paperDiscussion paperOther research output

File
simulation
services
parameter
demand
policy
2006
237 Downloads (Pure)

Assessing the Effects of using Demand Parameters Estimates in Inventory Control

Janssen, E., Strijbosch, L. W. G. & Brekelmans, R. C. M., 2006, Tilburg: Operations research, 19 p. (CentER Discussion Paper; vol. 2006-90).

Research output: Working paperDiscussion paperOther research output

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Inventory control
Underperformance
Simulation
Reorder point
Inventory model
311 Downloads (Pure)

Why Methods for Optimization Problems with Time-Consuming Function Evaluations and Integer Variables Should Use Global Approximation Models

Driessen, L., Brekelmans, R. C. M., Gerichhausen, M., Hamers, H. J. M. & den Hertog, D., 2006, Tilburg: Operations research, 19 p. (CentER Discussion Paper; vol. 2006-4).

Research output: Working paperDiscussion paperOther research output

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Evaluation Function
Optimization Problem
Integer
Approximation
Local Approximation
2003
282 Downloads (Pure)

Gradient Estimation Schemes for Noisy Functions

Brekelmans, R. C. M., Driessen, L., Hamers, H. J. M. & den Hertog, D., 2003, Tilburg: Operations research, 22 p. (CentER Discussion Paper; vol. 2003-12).

Research output: Working paperDiscussion paperOther research output

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Gradient Estimation
Gradient Estimate
Design of Experiments
Nonlinear Programming
Finite Difference Scheme
289 Downloads (Pure)

Gradient Estimation using Lagrange Interpolation Polynomials

Hamers, H. J. M., Brekelmans, R. C. M., Driessen, L. & den Hertog, D., 2003, Tilburg: Operations research, 18 p. (CentER Discussion Paper; vol. 2003-101).

Research output: Working paperDiscussion paperOther research output

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Gradient Estimation
Lagrange Interpolation
Polynomial
Mean Squared Error
Evaluation
2001
295 Downloads (Pure)

Constrained Optimization Involving Expensive Function Evaluations: A Sequential Approach

Brekelmans, R. C. M., Driessen, L., Hamers, H. J. M. & den Hertog, D., 2001, Tilburg: Operations research, 25 p. (CentER Discussion Paper; vol. 2001-87).

Research output: Working paperDiscussion paperOther research output

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Function evaluation
Constrained optimization
Derivatives
Geometry
Design of experiments
257 Downloads (Pure)

On D-Optimality Based Trust Regions for Black-Box Optimization Problems

Driessen, L., Brekelmans, R. C. M., Hamers, H. J. M. & den Hertog, D., 2001, Tilburg: Operations research, 16 p. (CentER Discussion Paper; vol. 2001-69).

Research output: Working paperDiscussion paperOther research output

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Derivatives
Geometry
Mathematical programming
Design of experiments
2000
242 Downloads (Pure)

Approximating the Finite-Time Ruin Probability under Interest Force

Brekelmans, R. C. M. & De Waegenaere, A. M. B., 2000, Tilburg: Operations research, 18 p. (CentER Discussion Paper; vol. 2000-111).

Research output: Working paperDiscussion paperOther research output

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Finite-time Ruin Probability
Probability of Ruin
Interval
Renewal Equation
Upper bound
1999
202 Downloads (Pure)

Cancelling of Insurance Contracts

Brekelmans, R. C. M. & De Waegenaere, A. M. B., 1999, Tilburg: Operations research, 24 p. (CentER Discussion Paper; vol. 1999-60).

Research output: Working paperDiscussion paperOther research output

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1997
223 Downloads (Pure)

Budget Setting Strategies for the Company's Divisions

Berg, M., Brekelmans, R. C. M. & De Waegenaere, A. M. B., 1997, Tilburg: Accounting, 14 p. (CentER Discussion Paper; vol. 1997-103).

Research output: Working paperDiscussion paperOther research output

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Uncertainty
Revenue
Numerical analysis
Modeling