Ivana Ljubic
Professeur, Département Systèmes d'Information, Sciences de la Décision et Statistiques (IDS)

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Présentation Thèmes de Recherche Publications Autres Activités

Habilitation in Operations Research, University of Vienna

PhD in Computer Science, Vienna University of Technology


Ivana Ljubic teaches Optimal Decision Making, Operations Research (OR) and Business Mathematics in ESSEC MSc, PhD and Advanced Master programs. Prior to joining ESSEC in 2015, she was appointed at the University of Vienna. She also worked as Visiting Scholar/Professor at the Robert H. Smith School of Business at the University of Maryland, TU Dortmund, TU Berlin, Dauphine University.  

She has carried out consulting studies and industrial contracts for leading telecommunication providers in France and Austria. After completing her PhD in computer science, she also worked for 2 years as Financial Analyst for a Siemens spin-off (fin4cast), focusing on portfolio optimization.

Research interests of Ivana Ljubic include combinatorial optimization, optimization under uncertainty, bilevel optimization. She uses tools and methods of mixed integer (non-) linear programming, meta-heuristics and their successful combinations for solving optimization problems with applications in network design, telecommunications, transportation, logistics, routing and bioinformatics. She has published more than 40 articles in leading OR journals, including Operations Research, Management Science, Mathematical Programming, INFORMS JOC, European Journal of Operational Research

She is member of the Editorial Advisory Board for the journal Computers & Operations Research and Associate Editor for the journal Omega. She also served as guest-editor of journals: European Journal of Operational Research and Annals of Operations Research.
She currently serves as vice-president of the INFORMS Telecommunication Section. From 2010-2016 she was member of council of the INFORMS Telecommunication Section and from 2006 to 2008 she was member of the executive board of the Austrian OR Society (OEGOR).

She has received numerous research grants, including those from the French Ministry of Foreign Affairs (PHC program), Austrian Academy of Sciences (OEAW), Austrian Research Fund (FWF) and European Commission (ERA-NET).


See my full publication list including preprints. 

See my Google Scholar Profile.

Complete list of scientific activities.


Thèmes de Recherche

Network Design

Combinatorial Optimization

Optimization under Uncertainty

Biobjective Optimization

Mixed Integer (Non-linear) Programming





Design of Telecommunication Networks

Smart Cities

Facility Location

Design of Data and Distribution Networks


Social Networks

Projets en Cours

e4-share (Models for Ecological, Economical, Efficient, Electric Car-Sharing), with Uni Wien, ULB and Uni Bolog.

Network Optimization in Bioinformatics and Systems Biology, with Uni Wien (funded by FWF)

Multi-Criteria Optimization of FTTx Network, with Uni Wien, ZIB Berlin (funded by FWF, DFG)





Publications académiques
  "A new general-purpose algorithm for mixed-integer bilevel linear programs" (I. Ljubic, M. Fischetti, M. Monaci, M. Sinnl), Operations Research, Numéro 6
  "On the use of intersection cuts for bilevel optimization" (I. Ljubic, M. Fischetti, M. Monaci), mathematical programming Series A & B, Numéro 
  "An Effective Dynamic Programming Algorithm for the Minimum-Cost Maximal Knapsack Packing Problem" (I. Ljubic, F. Furini, M. Sinnl), European Journal of Operational Research, oct. 2017, Vol. 262, Numéro 2, p. 438‑448
  "An Algorithmic Framework for the Exact Solution of Tree-Star Problems" (I. Ljubic, M. Leitner, J. Gonzales, M. Sinnl), European Journal of Operational Research, juin 2017, Vol. 261, Numéro 1, p. 54‑66
  "Feature Cluster: Recent Advances in Exact Methods for Multi-Objective Optimisation" (I. Ljubic, M. Ehrgott, S. Parragh), European Journal of Operational Research, juin 2017, Vol. 260, Numéro 3, p. 805‑806
  "Solving Minimum-Cost Shared Arborescence Problems" (I. Ljubic, E. Alvarez‑Miranda, M. Luipersbeck, M. Sinnl), European Journal of Operational Research, juin 2017, Vol. 258, Numéro 3, p. 887‑901
  "Stochastic Survivable Network Design Problems: Theory and Practice" (I. Ljubic, P. Mutzel, B. Zey), European Journal of Operational Research, juin 2017, Vol. 256, Numéro 2, p. 333‑348
  " Redesigning Benders Decomposition for Large Scale Facility Location" (I. Ljubic, M. Fischetti, M. Sinnl), Management Science, Numéro 7
  "A Node-Based ILP Formulation for the Node-Weighted Dominating Steiner Problem" (I. Ljubic, A. Bley, O. Maurer), Networks , janv. 2017, Vol. 69, Numéro 1, p. 33‑51
  "Thinning out Steiner trees: a node-based model for uniform edge costs" (M. Fischetti, M. Leitner, I. Ljubic, M. Luipersbeck, M. Monaci, M. Resch, D. Salvagnin, M. Sinnl), Mathematical Programming Computation
  "The connected facility location polytope" (M. Leitner, I. Ljubic, JJ. Salazar‑Gonzales, M. Sinnl), Discrete Applied Mathematics, Numéro tba
  "Benders decomposition without separability: a computational study for capacitated facility location problems" (I. Ljubic, M. Fischetti, M. Sinnl), European Journal of Operational Research, Numéro 3
  "ILP heuristics and a new exact method for bi-objective 0/1 ILPs: Application to FTTx-network design" (M. Leitner, I. Ljubic, M. Sinnl, A. Werner), Computers and OR
  "A Node-Based Layered Graph Approach for the Steiner Tree Problem with Revenues, Budget and Hop-Constraints" (I. Ljubic, M. Sinnl), Mathematical Programming Computation, Numéro -
  "The recoverable robust facility location problem" (E. Álvarez‑Miranda, E. Fernández, I. Ljubic, ), Transportation Research, sept. 2015, Vol. 79, Numéro 1, p. 93‑120
  "The Two-Level Diameter Constrained Spanning Tree Problem" (L. Gouveia, M. Leitner, I. Ljubic), Mathematical Programming, avr. 2015, Vol. 150, Numéro 1, p. 49‑78
  "The Generalized Regenerator Location Problem" (S. Chen, I. Ljubic, S. Raghavan), INFORMS Journal of Computing, mars 2015, Vol. 27, Numéro 2, p. 204‑220
  " The bi-objective prize-collecting Steiner tree problem" (M. Leitner, I. Ljubic, M. Sinnl), INFORMS Journal on Computing, déc. 2014, Vol. 27, Numéro 1, p. 118‑134
  "The Recoverable Robust Two-Level Network Design Problem" (E. Alvarez‑Miranda, I. Ljubic, S. Raghavan), INFORMS Journal on Computing, sept. 2014, Vol. 27, Numéro 1, p. 1‑19
  "Hop constrained Steiner trees with multiple root nodes" (L. Gouveia, M. Leitner, I. Ljubic), European Journal of Operational Research, juil. 2014, Vol. 236, Numéro 1
  " A MIP-based Heuristic Approach to solve a Prize-Collecting Local Access Network Design Problem " (I. Ljubic, P. Putz, JJ. Salazar6gonzalez), European Journal of Operational Research, juin 2014, Vol. 235, Numéro 3, p. 727‑739
  "A note on the Bertsimas & Sim algorithm for robust combinatorial optimization problems" (E. Alvarez‑Miranda, I. Ljubic, P. Toth), 4OR, déc. 2013, Vol. 11, Numéro 4, p. 349‑360
  "Lagrangian decompositions for the two-level FTTx network design problem" (A. Bley, I. Ljubic, O. Maurer), EURO Journal on Computational Optimization, nov. 2013, Vol. 1, Numéro 3, p. 221‑252
  "Exact Approaches for Solving Robust Prize-Collecting Steiner Tree Problems, European Journal of Operational Research" (E. Alvarez‑Miranda, I. Ljubic, P. Toth), European Journal of Operational Research, sept. 2013, Vol. 229, Numéro 3, p. 599‑612
  "A cutting plane algorithm for the Capacitated Connected Facility Location Problem" (S. Gollowitzer, B. Gendron, I. Ljubic), Computational Optimization and Applications, juil. 2013, Vol. 55, Numéro 3, p. 647‑674
  " Enhanced Formulations and Branch-and-Cut for the Two Level Network Design Problem with Transition Facilities" (S. Gollowitzer, L. Gouveia, I. Ljubic), European Journal of Operational Research, mars 2013, Vol. 225, Numéro 2, p. 211‑222
  "QTL Mapping Using a Memetic Algorithm with Modifications of BIC as Fitness Function" (F. Frommlet, I. Ljubic, H. Björk Arnardóttir, M. Bogdan), Statistical applications in Genetics and Molecular Biology, mai 2012, Vol. 11, Numéro 4, p. Art. 2
  "Layered Graph Approaches to the Hop Constrained Connected Facility Location Problem, 25(2): 256-270, 2013 Technical Report Nr. [2010-08]," (I. Ljubic, S. Gollowitzer), INFORMS Journal on Computing, avr. 2012, Vol. 25, Numéro 2, p. 256‑270
  "Exact approaches to the single-source network loading problem" (I. Ljubic, P. Putz, JJ. Salazar‑Gonzalez), Networks, janv. 2012, Vol. 59, Numéro 1, p. 89‑106
  "MIP models for connected facility location: A theoretical and computational study" (S. Gollowitzer, I. Ljubic), Computers and OR, févr. 2011, Vol. 38, Numéro 2, p. 435‑449
  "A branch-and-cut-and-price algorithm for vertex-biconnectivity augmentation" (I. Ljubic), Networks, oct. 2010, Vol. 56, Numéro 3, p. 169‑182
  "Orientation-based models for {0,1,2}-survivable network design: theory and practice" (M. Chimani, M. Kandyba, I. Ljubic, P. Mutzel), Mathematical Programming Series A & B, juil. 2010, Vol. 124, Numéro 1, p. 413‑440
  "The regenerator location problem" (I. Ljubic, S. Chen), Networks, mai 2010, Vol. 55, Numéro 3, p. 205‑220
  "Obtaining optimal k-cardinality trees fast" (I. Ljubic, M. Chimani, M. Kandyba, P. Mutzel), ACM Journal of Experimental Algorithmics, janv. 2009, Vol. 14, Numéro 5, p. 5.1‑5.23
  "An Algorithmic Framework for the Exact Solution of the Prize-Collecting Steiner Tree Problem" (I. Ljubic, R. Weiskircher, U. Pferschy, G. Klau, P. Mutzel, M. Fischetti), Mathematical Programming, févr. 2006, Vol. 105, Numéro 2, p. 427‑449
  "A Memetic Algorithm for Minimum-Cost Vertex-Biconnectivity Augmentation of Graphs" (I. Ljubic, G. Raidl), Journal of Heuristics, janv. 2003, Vol. 9, Numéro 5, p. 401‑428
  "Evolutionary Local Search for the Edge-Biconnectibity Augmentation Problem" (G. Raidl, I. Ljubic), Information Processing Letters, janv. 2002, Vol. 82, Numéro 1, p. 39‑45
  "Solving the simple plant location problem by genetic algorithms" (J. Kratica, D. Tosic, V. Filipovic, I. Ljubic), RAIRO Operations Research, janv. 2001, Vol. 35, Numéro 1, p. 127‑142

  Intersection Cuts for Bilevel Optimization. In: Integer Programming and Combinatorial Optimization (avec M. Fischetti, M. Monaci, M. Sinnl). Berlin (Germany) : Springer Lecture Notes in Computer Science, Quentin Louveaux, Martin Skutella . 2016, p. 77-88
  The Maximum Weight Connected Subgraph Problem. In: Facets of Combinatorial Optimization (avec E. Alvarez-Miranda, P. Mutzel). : Springer, Michael Jünger, Gerhard Reinelt. 2013, p. 245-270

Prix et distinctions

2016: Best paper award of the INFORMS Telecommunication Section for the paper The Generalized Regenerator Location Problem, INFORMS Journal on Computing 27(2): 204 - 220, 2015 (with S. Chen, S. Raghavan).

2014: Winner of the DIMACS implementation challenge on Steiner trees (with M. Fischetti et al.)

2014: Finalist for the best paper award of the INFORMS Telecommunication Section (with L. Gouveia, M. Leitner)

APART Fellowship of the Austrian Academy of Sciences (2011-2013)

Hertha-Firnberg Post-Doc Fellowship of the Austrian Science Fund (2007-2010) 

PhD award of Austrian Society for Operations Research (2005)

PhD Fellowship of Austrian Academy of Sciences (DOC Fellowship, 2003-2004)

Activités scientifiques
Membre d'un comité de lecture
  Computers and Operations Research, Elsevier

Direction d'ouvrage collectif
  Operations Research Proceedings 2015. (avec K. Doerner, G. Tragler, G. Pflug, ). : Springer Verlag, 2016

Communications présentées à des conférences

Exact Approaches to the Network Design Problem with Relays,
OR 2015, September 2, 2015, Vienna, Austria

ILP Formulations for the Lazy Bureaucrat Problem,
EURO 2015, July 14, 2015, Glasgow, UK

A node-based layered graph approach for hop-constrained Steiner trees,
INOC 2015, May 20, 2015, Warsaw, Poland 

The Recoverable Robust Two-Level Network Design Problem,
SIAM Conference on Optimization, May 21, 2014, San Diego, CA 

The Recoverable Robust Facility Location Problem,
ISCO 2014 , March 5, 2014, Lissabon, Portugal

The Maximum Weight Connected Subgraph Problem,
EURO-INFORMS Joint International Meeting 2013, July 3, 2013, Rome, Italy 


Affiliations et activités académiques

2014-2016: INFORMS Telecom Section, Secretary,

2014-2015 and 2006-2008: Member of the executive board of the Austrian Society of Operations Research OEGOR),


Recent invited talks:

On optimal design of charging stations for electric vehicles,
PGMO Seminar, École Polytechnique, Paris, September 17, 2015

Exact Approaches to the Network Design Problem with Relays,
Séminaires de l'équipe AOC, Laboratoire d'informatique de Paris Nord, Paris, May 12, 2015

MIP Approaches to the Lazy Bureaucrat and Greedy Boss Problems,
Séminaire Pôle 2 Optimisation Combinatoire, University Paris Dauphine, Paris, May 11, 2015

The diameter constrained minimum spanning tree problem: Polyhedral study,
2. Encontro do Centro de Investigação Operacional, Portugal, Lisbon, March 28, 2015

A New Modeling Concept for Facility Location Under Uncertainty,
Seminar of the Operations Group, Universidad Adolfo Ibanez, Santiago, Chile, March 10, 2015

A polyhedral study of the diameter constrained minimum spanning tree problem,
Seminario conjunto ACGO y Matemáticas Discretas, Center of Mathematical Modeling, Santiago, Chile, March 6, 2015

The Recoverable Robust Facility Location Problem,
Graz Discrete Mathematics and Optimization Seminar, TU Graz, Austria, May 13, 2014

The Maximum Weight Connected Subgraph Problem: Applications in Bioinformatics,
The Centre for Bioinformatics, Biomarker Discovery and Information-Based Medicine (CIBM),
University of Newcastle, Australia, August 29, 2013





OptTelNets, project with Telecom Austria A1 (2007 - 2010)

Expérience professionnelle

Recent activities as the program committee member:

European Conference on Operational Research, EURO 2016, Poznan, Poland

International Network Optimization Conference, INOC 2015, Warsaw, Poland

International Symposium on Combinatorial Optimization, ISCO 2014, Lisbon, Portuga

INFORMS Telecommunication Conference 2014, Lisbon, Portugal


Recent co-organization of conferences & workshops:

OR2015, Vienna, Austria, Sept 1-4, 2015

Workshop “Recent Advances in Multi-Objective Optimization”, 2014 University of Vienna, Austria

Workshop “Routing and Networks”, University of Vienna, 2014, Austria



Liens utiles
Systèmes d'Information, Sciences de la Décision et Statistiques (IDS)
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