Schedule

• A comparative study of branch-and-price algorithms for a vehicle routing problem with time windows and waiting time costs
  Stefano Michelini (HEC Liège - Management School of the University of Liège)
  Co-authors: Yasemin Arda, Hande Küçükaydin
  
• A model for container collection in a local recycle network
  Jens Van Engeland (KU Leuven Campus Brussel)
  Co-authors: Carolien Lavigne
  
• Improving the Last Mile Logistics in a City Area by Changing Time Windows
  Corrinne Luteyn (KU Leuven)
  Co-authors: Pieter Vansteenwegen
  
• A buffering-strategy-based solution method for the dynamic pickup and delivery problem with time windows
  Farzaneh Karami (KU Leuven)
  Co-authors: Wim Vancroonenburg, Greet Vanden Berghe
  

• Input data quality assessment in the context of emergency department simulations
  Lien Vanbrabant (Hasselt University)
  Co-authors: Niels Martin, Katrien Ramaekers, Kris Braekers
  
• Expanding the SIMEDIS simulator for studying the medical responce in disaster scenarios
  Selma Koghee (Royal Military Academy)
  Co-authors: F. Van Utterbeeck, M. Debacker, I. Hubloue, E. Dhondt
  
• Prioritization between boarding patients and patients currently waiting or under treatment in the emergency department
  Kim De Boeck (KU Leuven)
  Co-authors: Raïsa Carmen, Nico Vandaele
  
• Protecting operating room schedules against emergency surgeries: outlook on new stochastic optimization models
  Mathieu Vandenberghe (Ghent University)
  Co-authors: Stijn De Vuyst ; El-Houssaine Aghezzaf ; Herwig Bruneel
  

• Towards Algorithm Selection for the Generalised Assignment Problem
  Hans Degroote (KU Leuven Kulak)
  Co-authors: Patrick De Causmaecker; José Luis González Velarde
  
• Searching the Design Space of Adaptive Evolutionary Algorithms
  Ayman Srour (Ku leuven)
  Co-authors: Patrick De Causmaecker
  
• Analysis of algorithm components and parameters using surrogate modelling: some case studies
  Nguyen Dang (KU Leuven KULAK)
  Co-authors: Patrick De Causmaecker
  
• Automatic configuration of metaheuristics for the Q3AP
  Imène Ait Abderrahim (University of Oran 1 Ahmed Benbella, Algeria)
  Co-authors: Lakhdar Loukil, Thomas Stützle
  

• Exact solution methods for the bi-objective \{0, 1\}-quadratic knapsack problem
  Jean-philippe Hubinont (ULB)
  Co-authors: José Rui Figueira, Yves De Smet
  
• Analyzing objective interaction in lexicographic optimization
  Federico Mosquera (KU Leuven)
  Co-authors: Pieter Smet, Greet Vanden Berghe
  
• Military manpower planning through a career path approach
  Oussama Mazari Abdessameud (VUB)
  Co-authors: Filip Van Utterbeeck, Johan Van Kerckhoven, Marie-Anne Guerry
  
• Optimization of Emergency Service Center Locations Using an Iterative Solution Approach
  Mumtaz Karatas (National Defense University, Turkish Naval Academy)
  Co-authors: Ertan Yakici
  

• Vertical supply chain integration - Is routing more important than inventory management?
  Florian Arnold (University of Antwerp)
  Co-authors: Johan Springael, Kenneth Sörensen
  
• Stochastic solutions for the Inventory-Routing Problem with Transshipment
  Wouter Lefever (Ghent University)
  Co-authors: El-Houssaine Aghezzaf, Khaled Hadj-Hamou
  
• Solving an integrated order picking-vehicle routing problem with record-to-record travel
  Stef Moons (UHasselt - Hasselt University)
  Co-authors: Kris Braekers, Katrien Ramaekers, An Caris, Yasemin Arda
  
• The simultaneous vehicle routing and service network design problem in intermodal rail transportation
  Hilde Heggen (Universiteit Hasselt)
  Co-authors: An Caris, Kris Braekers
  

• Local evaluation techniques in bus line planning
  Evert Vermeir (KU Leuven)
  Co-authors: Pieter Vansteenwegen
  
• Integrating dial-a-ride services and public transport
  Yves Molenbruch (Hasselt University)
  Co-authors: Kris Braekers
  
• Benchmarks for the prisoner transportation problem
  Jan Christiaens (KU Leuven)
  Co-authors: Tony Wauters, Greet Vanden Berghe
  
• Optimizing city-wide vehicle allocation for car sharing
  Toni Wickert (KU Leuven)
  Co-authors: Federico Mosquera, Pieter Smet, Emmanouil Thanos
  

• On computing the distances to stability for matrices
  Punit Sharma (University of Mons)
  Co-authors: Nicolas Gillis
  
• Low-Rank Matrix Approximation in the Infinity Norm
  Nicolas Gillis (University of Mons)
  Co-authors: Yaroslav Shitov
  
• Benchmarking some iterative linear systems solvers for deformable 3D images registration
  Justin Buhendwa Nyenyezi (Université de Namur)
  
• Spectral Unmixing with Multiple Dictionaries
  Jérémy Cohen (UMONS/FNRS)
  Co-authors: Nicolas Gillis
  

• The maximum covering cycle problem
  Wim Vancroonenburg (KU Leuven - FWO)
  Co-authors: Andrea Grosso, Fabio Salassa
  
• Linear and quadratic reformulation techniques for nonlinear 0-1 optimization problems
  Elisabeth Rodriguez Heck (HEC Liège - Management School of the University of Liège)
  Co-authors: Yves Crama
  
• Unit Commitment under Market Equilibrium Constraints
  Jérôme De Boeck (Université Libre de Bruxelles)
  Co-authors: Luce Brotcorne, Fabio D'Andreagiovanni, Bernard Fortz
  

• A decade of academic research on warehouse order picking: trends and challenges
  Babiche Aerts (University of Antwerp)
  Co-authors: T. Cornelissens, K. Sorensen
  
• Iterated local search algorithm for solving operational workload imbalances in order picking
  Sarah Vanheusden (Hasselt University, research group logistics)
  
• Scheduling container transportation with capacitated vehicles through conflict-free trajectories: A local search approach
  Emmanouil Thanos (KU Leuven)
  Co-authors: Tony Wauters, Greet Vanden Berghe
  

• The Robust Machine Availability Problem
  Guopeng Song (KU Leuven)
  Co-authors: Daniel Kowalczyk, Roel Leus
  
• Optimizing line feeding under consideration of variable space constraints
  Nico André Schmid (Ghent University)
  Co-authors: Veronique Limère
  
• Scheduling Markovian PERT networks to maximize the net present value: New results
  Ben Hermans (KULeuven)
  Co-authors: Roel Leus
  

• Log-determinant Non-Negative Matrix Factorization via Successive Trace Approximation
  Man Shun Ang (Universite de Mons)
  Co-authors: Nicolas Gillis
  Abstract:
  Non-negative matrix factorization (NMF) is the problem of approximating a nonnegative matrix X as the product of two smaller nonnegative matrices W and H so that X = WH. In this talk, we consider a regularized variant of NMF, with a log-determinant (logdet) term on the Gramian of the matrix W. This term acts as a volume regularizer: the minimization problem aims at finding a solution matrix W with low fitting error and such that the convex hull spanned by the columns of W has minimum volume. The logdet of the Gramian of W makes the columns of W interact in the optimization problem, making such logdet regularized NMF problem difficult to solve. We propose a method called successive trace approximation (STA). Based on a logdet-trace inequality, STA replaces the logdet regularizer by a parametric trace functional that decouples the columns on W. This allows us to transform the problem into a vector-wise non-negative quadratic program that can be solved effectively with dedicated methods. We show on synthetic and real data sets that STA outperforms state-of-the-art algorithms.
  
• Audio Source Separation Using Nonnegative Matrix Factorization
  Valentin Leplat (UMons)
  Co-authors: Nicolas Gillis, Xavier Siebert
  
• Orthogonal Joint Sparse NMF for 3D-Microarray Data Analysis
  Flavia Esposito (Università degli Studi di Bari Aldo Moro, Italy)
  Co-authors: Nicolas Gillis, Nicoletta Del Buono
  

• Intermodal Rail-Road Terminal Operations
  Michiel Van Lancker (KU Leuven)
  Co-authors: Greet Vanden Berghe, Tony Wauters
  
• Reducing Picker Blocking in a Real-life Narrow-Aisle Spare Parts Warehouse
  Teun Van Gils (Hasselt University)
  Co-authors: Katrien Ramaekers & An Caris
  

• An analysis on the destroy and repair process in large neighbourhood search applied on the vehicle routing problem with time windows
  Jeroen Corstjens (Hasselt University)
  Co-authors: An Caris, Benoît Depaire
  
• Multi-tool hole drilling with sequence dependent drilling times
  Reginald Dewil (Katholieke Universiteit Leuven)
  Co-authors: Ilker Küçükoglu, Corrinne Luteyn, Dirk Cattrysse
  

• Giving Priority Access to Freight Vehicles at Signalized Intersections
  Joris Walraevens (Ghent University)
  Co-authors: Tom Maertens, Sabine Wittevrongel
  
• Creating a dynamic impact zone for conflict prevention in real-time railway traffic management
  Sofie Van Thielen (KU Leuven)
  Co-authors: Pieter Vansteenwegen
  

• The inventory/capacity trade-off with respect to the quality processes in a Guaranteed Service Vaccine Supply Chain
  Stef Lemmens (KU Leuven)
  Co-authors: Catherine Decouttere, Nico Vandaele, Mauro Bernuzzi, Amir Reichman
  
• Optimization tool for the drug manufacturing in the pharmaceutical industry
  Charlotte Tannier (N-SIDE)
  Co-authors: Benoit David, Sebastien Coppe
  

• Staff Scheduling at a Medical Emergency Service: a case study at Instituto Nacional de Emergência Médica
  Hendrik Vermuyten (KU Leuven, Campus Brussels)
  Co-authors: Joana Namorado Rosa; Inês Marques; Jeroen Beliën; Ana Barbosa-Póvoa
  
• Home chemotherapy: optimizing the production and administration of drugs.
  Véronique François (HEC Liège - Management School of the University of Liège)
  Co-authors: Yasemin Arda, Diego Cattaruzza, Maxime Ogier
  
• An analysis of short term objectives for dynamic patient admission scheduling
  Yi-hang Zhu (KU Leuven)
  Co-authors: Túlio A. M. Toffolo, Wim Vancroonenburg, Greet Vanden Berghe
  
• Robust Kidney Exchange Programs
  Bart Smeulders (HEC Liège - Management School of the University of Liège)
  Co-authors: Yves Crama, Frits C.R. Spieksma
  

• Considering complex routes in the Express Shipment Service Network Design problem
  José Miguel Quesada PÉrez (Université catholique de Louvain)
  Co-authors: Jean-Charles Lange, Jean-Sébastien Tancrez
  
• Assessing Collaboration In Supply Chain
  Thomas Hacardiaux (Université catholique de Louvain)
  Co-authors: Jean-Sébastien Tancrez
  
• Planning of feeding station installment and battery sizing for an electric urban bus network
  Virginie Lurkin (École polytechnique fédérale de Lausanne)
  Co-authors: A. Zanarini, S.S. Azadeh, Y. Maknoon, M. Bierlaire
  
• A matheuristic for the problem of pre-positioning relief supplies
  Renata Turkes (University of Antwerp)
  Co-authors: Kenneth Sörensen, Daniel Palhazi Cuervo
  

• Easily Building Complex Neighbourhoods With the Cross-Product Combinator
  Fabian Germeau (CETIC)
  Co-authors: Yoann Guyot, Gustavo Ospina, Renaud De Landtsheer, Christophe Ponsard
  
• Generic Support for Global Routing Constraint in Constraint-Based Local Search Frameworks
  Renaud De Landtsheer (CETIC)
  Co-authors: Quentin Meurisse
  
• Formalize neighbourhoods for local search using predicate logic
  Tu San Pham (KU Leuven)
  Co-authors: Jo Devriendt, Patrick De Causmaecker
  
• What is the impact of a solution representation on metaheuristic performance?
  Pieter Leyman (KU Leuven KULAK)
  Co-authors: Patrick De Causmaecker
  

• Dynamic programming algorithms for energy constrained lot sizing problems
  Ayse Akbalik (LCOMS, Université de Lorraine)
  Co-authors: Christophe RAPINE, Guillaume GOISQUE
  
• Minimizing makespan on a single machine with release date and inventory constraints
  Morteza Davari (KU Leuven)
  Co-authors: Mohammad Ranjbar, Roel Leus, Patrick De Causmaecker
  
• Stocking and Expediting in Two-Echelon Spare Parts Inventory Systems under System Availability Constraints
  Melvin Drent (University of Luxembourg)
  Co-authors: Joachim Arts
  

• Drone delivery from trucks: Drone scheduling for given truck routes
  Dirk Briskorn (University of Wuppertal)
  Co-authors: Nils Boysen, Stefan Fedtke, Stefan Schwerdfege
  
• Addressing Uncertainty in Meter Reading for Utility Companies using RFID Technology: Simulation Experiments
  Christof Defryn (Maastricht University)
  Co-authors: Debdatta Sinha Roy, Bruce Golden
  
• A UAV Location and Routing Problem with Synchronization Constraints
  Ertan Yakici (National Defense University, Turkish Naval Academy)
  Co-authors: Mumtaz Karatas, Oktay Yilmaz
  

• Extensions of PROMETHEE to multicriteria clustering: recent developments
  Jean Rosenfeld (Université libre de Bruxelles)
  Co-authors: Van Assche Dimitri, De Smet Yves
  
• More Robust and Scalable Sparse Subspace Clustering Based on Multi-Layered Graphs and Randomized Hierarchical Clustering
  Maryam Abdolali (Amirkabir University of Technology (Tehran Polytechnic) )
  Co-authors: Nicolas Gillis
  
• Design and implementation of a modular distributed and parallel clustering algorithm
  Landelin Delcoucq (University of Mons)
  

• On facility location problems and penalty-based aggregation
  Raúl Pérez Fernández (Ghent University)
  Co-authors: Bernard De Baets
  
• Improving the quality of the assessment of food samples by combining absolute and relative information
  Bernard De Baets (Universiteit Gent)
  Co-authors: Raúl Pérez-Fernández, Marc Sader
  
• Coordination and threshold problems in combinatorial auctions
  Bart Vangerven (Bergische Universität Wuppertal)
  Co-authors: Dries R. Goossens, Frits C.R. Spieksma
  

• Scheduling time-relaxed double round-robin tournaments with availability constraints
  David Van Bulck (Ghent University)
  Co-authors: Dries Goossens
  
• Combined proactive and reactive strategies for round robin football scheduling
  Xia-jie Yi (Ghent University)
  Co-authors: Dries Goossens
  
• A constructive matheuristic strategy for the Traveling Umpire Problem
  Reshma Chirayil Chandrasekharan (KU Leuven)
  Co-authors: Tulio A. M. Toffolo, Tony Wauters
  

• Maximum likelihood estimation of discrete and continuous parameters: an MILP formulation
  Anna Fernández Antolín (TRANSP-OR, EPFL)
  Co-authors: Virginie Lurkin, Michel Bierlaire
  
• Integrating advanced discrete choice models in mixed integer linear optimization
  Meritxell Pacheco Paneque (TRANSP-OR EPFL)
  Co-authors: Shadi Sharif Azadeh, Michel Bierlaire, Bernard Gendron
  

• A density-based decision tree for one-class classification
  Sarah Itani (University of Mons)
  Co-authors: Fabian Lecron & Philippe Fortemps
  
• Comparison of active learning classification strategies
  Xavier Siebert (Faculté Polytechnique de Mons)
  Co-authors: Nouara Bellahdid, Moncef Abbas
  
• Risk bounds on statistical learning
  Boris Ndjia Njike (Université de Mons)
  Co-authors: Xavier Siebert