R. Leus

Catholic University of Leuven (KUL)

Leuven, B-3000

Belgium

SCHOLARLY PAPERS

36

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3,769

TOTAL CITATIONS

47

Scholarly Papers (36)

1.

Managing Technology Risk in R&D Project Planning: Optimal Timing and Parallelization of R&D Activities

Number of pages: 34 Posted: 10 Jan 2006
London Business School, London Business School, London Business School and Catholic University of Leuven (KUL)
Downloads 507 (114,148)

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Project Management, Project scheduling, Risk industries, Pharmaceutical, R&D projects analysis of algorithms, Computational complexity, Exact algorithms programming, Integer, Branch-and-bound, Applications

2.

Project Portfolio Management: Capacity Allocation, Downsizing Decisions and Sequencing Rules

Number of pages: 22 Posted: 27 Mar 2009
KU Leuven - Faculty of Business and Economics (FEB), Catholic University of Leuven (KUL) and Catholic University of Leuven (KUL)
Downloads 235 (264,247)

Abstract:

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project portfolio management, downsizing, sequencing

3.

Resource-Constrained Project Scheduling for Timely Project Completion with Stochastic Activity Durations

Number of pages: 34 Posted: 01 Feb 2008
Francisco Ballestin and R. Leus
University of Navarra - Dpto. de Estadística e Investigación Operativa and Catholic University of Leuven (KUL)
Downloads 199 (309,247)
Citation 4

Abstract:

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GRASP, Project scheduling, Uncertainty

4.

Order Acceptance and Scheduling in a Single-Machine Environment: Exact and Heuristic Algorithms

Number of pages: 29 Posted: 14 Sep 2009
HEC-Management School, University of Liège, KU Leuven - Faculty of Business and Economics (FEB) and Catholic University of Leuven (KUL)
Downloads 176 (345,662)
Citation 2

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order acceptance, scheduling, single machine, branch-and-bound, heuristics, firm planned orders

5.

Dynamic Order Acceptance and Capacity Planning within a Multi-Project Environment

KBI Working Paper No. 0614
Number of pages: 34 Posted: 07 Mar 2007
KU Leuven - Faculty of Business and Economics (FEB), Catholic University of Leuven (KUL) and Catholic University of Leuven (KUL)
Downloads 170 (356,329)
Citation 2

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Capacity planning, multi-project, Order acceptance, Stochastic dynamic programming

6.

Robust Maximum Weighted Independent-Set Problems on Interval Graphs

Number of pages: 8 Posted: 06 Dec 2011
F. Talla Nobibon and R. Leus
HEC-Management School, University of Liège and Catholic University of Leuven (KUL)
Downloads 147 (402,549)

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combinatorial problems, computational complexity, interval graphs, independent set

7.

Extending the Production Dice Game

Number of pages: 16 Posted: 15 Apr 2010
KU Leuven, Research Center for Operations Management, Faculty of Economics and Business, UCLouvain, Catholic University of Leuven (KUL) - Department of Applied Economics and Catholic University of Leuven (KUL)
Downloads 130 (443,585)

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8.

Scheduling Markovian PERT Networks to Maximize the Net Present Value: New Results

Number of pages: 15 Posted: 13 Oct 2017
Ben Hermans and R. Leus
KU Leuven - Faculty of Business and Economics (FEB) and Catholic University of Leuven (KUL)
Downloads 127 (451,604)
Citation 1

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project scheduling, net present value, exponentially distributed activity durations, Markov decision process, monotone optimal policy

9.

Models for the Optimization of Promotion Campaigns: Exact and Heuristic Algorithms

Number of pages: 34 Posted: 27 Oct 2008
HEC-Management School, University of Liège, Catholic University of Leuven (KUL) and Catholic University of Leuven (KUL)
Downloads 124 (460,044)
Citation 1

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promotion campaign, minimum quantity commitment, integer program

10.

New Benchmark Results for the Stochastic Resource-Constrained Project Scheduling Problem

Number of pages: 37 Posted: 01 Feb 2016
KU Leuven - Faculty of Business and Economics (FEB), UCLouvain and Catholic University of Leuven (KUL)
Downloads 119 (474,904)
Citation 5

Abstract:

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project scheduling, uncertainty, stochastic activity durations, scheduling policies

11.

Efficient and Effective Solution Procedures for Order Acceptance and Capacity Planning

Number of pages: 25 Posted: 01 Feb 2008
KU Leuven - Faculty of Business and Economics (FEB), Catholic University of Leuven (KUL) and Catholic University of Leuven (KUL)
Downloads 116 (487,250)
Citation 1

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Approximate dynamic programming, Capacity planning, multi-project, Order acceptance, Simulation

12.

Robust Optimization for Resource-Constrained Project Scheduling with Uncertain Activity Durations

Number of pages: 30 Posted: 30 Jan 2011
French National Center for Scientific Research (CNRS). LAAS, Catholic University of Leuven (KUL) and HEC-Management School, University of Liège
Downloads 113 (493,632)
Citation 5

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project scheduling, RCPSP, uncertainty, robust optimization

13.

Optimization of the Annual Planning of Targeted Offers in Direct Marketing

Number of pages: 18 Posted: 03 Dec 2011
Katholieke Universiteit Leuven - Faculty of Business and Economics (FBE), Catholic University of Leuven (KUL) and HEC-Management School, University of Liège
Downloads 105 (520,923)

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promotion campaigns; product bundling, multi-channel strategies, direct marketing, integer programming

14.

An Exact Algorithm for Parallel Machine Scheduling with Conflicts

Number of pages: 43 Posted: 03 Mar 2015
Daniel Kowalczyk and R. Leus
KU Leuven - Department of Applied Economics and Catholic University of Leuven (KUL)
Downloads 101 (535,308)
Citation 6

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Scheduling, Combinatorial optimization, Parallel machines, Coloring, Branch and price

15.

A Branch-and-Price Algorithm for Parallel Machine Scheduling Using ZDDs and Generic Branching

Number of pages: 38 Posted: 20 Dec 2016
Daniel Kowalczyk and R. Leus
KU Leuven - Department of Applied Economics and Catholic University of Leuven (KUL)
Downloads 98 (546,390)
Citation 3

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parallel machine scheduling, weighted completion times, branch and price, ZDD, stabilization

16.

Practical Solutions for a Dock Assignment Problem with Trailer Transportation

Number of pages: 26 Posted: 19 Dec 2011
Lotte Berghman and R. Leus
Catholic University of Leuven (KUL). Faculty of Business and Economics (FBE) and Catholic University of Leuven (KUL)
Downloads 93 (564,985)
Citation 1

Abstract:

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dock assignment, multicriteria scheduling, branch and bound, beam search, Lagrangian relaxation, tabu search

17.

A Novel Class of Scheduling Policies for the Stochastic Resource-Constrained Project Scheduling Problem

Number of pages: 25 Posted: 26 Mar 2009
Iran University of Science and Technology. Department of Industrial Engineering, Catholic University of Leuven (KUL) and Iran University of Science and Technology. Department of Industrial Engineering
Downloads 92 (568,795)
Citation 2

Abstract:

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project scheduling, uncertainty, stochastic activity durations, scheduling

18.

Self-Imposed Time Windows in Vehicle Routing Problems

Katholieke Universiteit of Leuven KBI Working Paper No. 1028
Number of pages: 28 Posted: 05 Dec 2010
Eindhoven University of Technology (TUE), Catholic University of Leuven (KUL), Eindhoven University of Technology (TUE) and Eindhoven University of Technology
Downloads 91 (572,607)
Citation 3

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routing, vehicle routing problem, vehicle scheduling, disruptions in travel times, tabu search, linear programming

19.

Exact Algorithms for Single-Machine Scheduling with Time Windows and Precedence Constraints

Number of pages: 26 Posted: 21 Jan 2014
KU Leuven - Department of Applied Economics, Catholic University of Leuven (KUL), Catholic University of Leuven (KUL) and FedEx Express Europe
Downloads 86 (592,762)
Citation 1

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single-machine scheduling, branch and bound, mixed-integer programming

20.

The Robust Machine Availability Problem

Number of pages: 35 Posted: 13 Oct 2017
KU Leuven - Faculty of Business and Economics (FEB), KU Leuven - Department of Applied Economics and Catholic University of Leuven (KUL)
Downloads 81 (614,061)

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parallel machine scheduling, machine availability, robust optimization, branch and price, ZDD

21.

Project Planning with Alternative Technologies in Uncertain Environments

Number of pages: 32 Posted: 21 Jan 2014
UCLouvain, Singapore Management University - Lee Kong Chian School of Business and Catholic University of Leuven (KUL)
Downloads 80 (618,469)
Citation 4

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22.

Optimal Solutions for a Dock Assignment Problem with Trailer Transportation

Katholieke Universiteit Department of Decision Sciences and Information Management Working Paper No. 1010
Number of pages: 29 Posted: 05 Jun 2010 Last Revised: 07 Jun 2010
Catholic University of Leuven (KUL). Faculty of Business and Economics (FBE), Catholic University of Leuven (KUL) and Catholic University of Leuven (KUL)
Downloads 79 (622,915)
Citation 2

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Dock Assignment, Parallel Machines, Flexible Flow Shop, Integer Programming, Symmetry

23.

An Investigation of Resource-Allocation Decisions by Means of Project Networks

KU Leuven Working Paper No. KBI 0626
Number of pages: 29 Posted: 08 Mar 2007
R. Leus
Catholic University of Leuven (KUL)
Downloads 79 (622,915)
Citation 1

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Complexity, Project scheduling, Resource allocation

24.

Project Scheduling with Modular Project Completion on a Bottleneck Resource

Number of pages: 33 Posted: 20 Dec 2011
Katholieke Universiteit Leuven - Faculty of Business and Economics (FBE), Katholieke Universiteit Leuven - Faculty of Business and Economics (FBE), HEC-Management School, University of Liège and Catholic University of Leuven (KUL)
Downloads 73 (650,100)
Citation 1

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scheduling, uncertainty, research and development, activity failures, modular precedence network

25.

Precedence Theorems and Dynamic Programming for the Single-Machine Weighted Tardiness Problem

KBI_1715
Number of pages: 21 Posted: 13 Nov 2017
KU Leuven - Faculty of Business and Economics (FEB), UCLouvain and Catholic University of Leuven (KUL)
Downloads 60 (717,174)

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single-machine scheduling; precedence constraints; weighted tardiness; precedence theorems; dynamic programming

26.

Coloring Graphs While Avoiding Monochromatic Cycles

Number of pages: 29 Posted: 28 Sep 2010
HEC-Management School, University of Liège, affiliation not provided to SSRN, Catholic University of Leuven (KUL) and Catholic University of Leuven (KUL)
Downloads 56 (740,545)
Citation 1

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directed graph, undirected graph; bipartite graph, acyclic graph, phase transition, NP-complete

27.

New Results on the Coordination of Transportation and Batching Scheduling

Number of pages: 14 Posted: 31 Aug 2014
Hongli Zhu, R. Leus and Hong Zhou
Beihang University (BUAA) - School of Economic and Management Science, Catholic University of Leuven (KUL) and Beihang University (BUAA) - School of Economic and Management Science
Downloads 54 (752,996)

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Scheduling, Transportation, Batching, NP-hardness, Strong NP-hardness

28.

Resource Loading with Time Windows

Number of pages: 28 Posted: 25 Jan 2014
FedEx Express Europe, Catholic University of Leuven (KUL), Tsinghua University - Department of Mathematical Sciences and Tsinghua University - Department of Mathematical Sciences
Downloads 53 (759,405)

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Resource loading; Dynamic programming; NP-complete; Preemption; Approximation algorithms

29.

Complexity Results and Exact Algorithms for Robust Knapsack Problems

Number of pages: 26 Posted: 03 Dec 2011
F. Talla Nobibon and R. Leus
HEC-Management School, University of Liège and Catholic University of Leuven (KUL)
Downloads 48 (792,471)
Citation 1

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knapsack problem, robustness, scenario-relaxation algorithm, NP-hard, approximation

30.

A Combination of Flow Shop Scheduling and the Shortest Path Problem

Number of pages: 20 Posted: 22 Jan 2014
Tsinghua University - Department of Mathematical Sciences, Tsinghua University - Department of Mathematical Sciences, FedEx Express Europe and Catholic University of Leuven (KUL)
Downloads 47 (799,590)

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approximation algorithm, combination of optimization problems, flow shop scheduling, shortest path

31.

A Fast Greedy Heuristic for Scheduling Modular Projects

KU Leuven Faculty of Business and Economics KBI 1227
Number of pages: 21 Posted: 05 Apr 2013
Utrecht University - School of EconomicsKU Leuven - Faculty of Business and Economics (FBE), Katholieke Universiteit Leuven - Faculty of Business and Economics (FBE), HEC-Management School, University of Liège and Catholic University of Leuven (KUL)
Downloads 46 (806,862)

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scheduling, greedy heuristics, modular projects

32.

Sequential Testing of k-out-of-n Systems with Imperfect Tests

Number of pages: 36 Posted: 27 Mar 2015
Katholieke Universiteit Leuven - Faculty of Business and Economics (FBE), Katholieke Universiteit Leuven - Faculty of Business and Economics (FBE), HEC-Management School, University of Liège and Catholic University of Leuven (KUL)
Downloads 41 (844,095)

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sequential testing, k-out-of-n systems, imperfect tests, sequencing and scheduling

33.

Sequential Diagnosis of K-Out-Of-N Systems with Imperfect Tests

Number of pages: 30 Posted: 22 Jan 2014
Katholieke Universiteit Leuven - Faculty of Business and Economics (FBE), FedEx Express Europe and Catholic University of Leuven (KUL)
Downloads 38 (868,394)

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system diagnosis, k-out-of-n systems, imperfect tests, sequencing and scheduling

34.

Complexity Analysis of the Discrete Sequential Search Problem with Group Activities

Number of pages: 13 Posted: 22 Jan 2014
Katholieke Universiteit Leuven - Faculty of Business and Economics (FBE), FedEx Express Europe and Catholic University of Leuven (KUL)
Downloads 38 (868,394)

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discrete sequential search, group activities, NP-hard, single-machine scheduling, bipartite precedence constraints

35.

Sequential Testing Policies for Complex Systems Under Precedence Constraints

Number of pages: 18 Posted: 30 Jun 2012
Wenchao Wei, Kris Coolen and R. Leus
Katholieke Universiteit Leuven - Faculty of Business and Economics (FBE), Katholieke Universiteit Leuven - Faculty of Business and Economics (FBE) and Catholic University of Leuven (KUL)
Downloads 36 (885,622)

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sequential testing, precedence constraints, branch and bound, dynamic programming

36.

A Note on 'Discrete Sequential Search with Group Activities'

Number of pages: 16 Posted: 09 Feb 2012
HEC-Management School, University of Liège, Katholieke Universiteit Leuven - Faculty of Business and Economics (FBE) and Catholic University of Leuven (KUL)
Downloads 31 (930,867)

Abstract:

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