ISCO International Symposium on Combinatorial Optimization
ISCO International Symposium on Combinatorial Optimization

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What is ISCO?
What is the Scope of ISCO?
A bit of history
Steering Comittee

ISCO Conferences

Hammamet, Tunisia
ISCO 2010

Athens, Greece
ISCO 2012
(altern. ISCO 2012)

Lisbon, Portugal
ISCO 2014
(altern. ISCO 2014)

Vietri Sul Mare, Italy
ISCO 2016
(altern. ISCO 2016)

What is ISCO?

ISCO (Integer Symposium on Combinatorial Optimization) is a biannual symposium whose aim is to bring together researchers from all the communities related to combinatorial optimization, including algorithms and complexity, mathematical programming, operations research, stochastic optimization, graphs and combinatorics. Quality papers on all aspects of combinatorial optimization, from mathematical foundations and theory of algorithms to computational studies and practical applications, are solicited.

Each ISCO conference is preceded or followed by a Spring School lectured by international Combinatorial Optimization searches. This school is dedicated to PhD students but the lectures are also opened to older colleagues.

Scope of ISCO

Topics of interest include, but are not limited to:

  • Approximation algorithms
  • Branch-and-bound algorithms
  • Branch-and-cut-and price algorithms
  • Computational biology
  • Computational complexity
  • Computational geometry
  • Constraint Programming
  • cutting plane algorithms
  • Exact and parameterized algorithms
  • Graph and network algorithms
  • Interior point methods
  • Linear and nonlinear integer programming
  • Local search algorithm
  • Metaheuristic
  • On-line algorithms
  • Polyhedral combinatorics
  • Randomized algorithms
  • Scheduling algorithms

A bit of history

The first issue of ISCO was held in Hammamet, Tunisia in March 2010. This first attempt gathered more than 200 participants in a beautiful mediterranean country. The plenary sessions as well as all the talks have shown the large spectrum of our Combinatorial Optimization domain. Pierre Bonami from University of Méditerranée, Gerard Cornuéjols from Carnegie Mellon University and Andrea Lodi from University of Bologna have given a Spring School on "Cutting plane methods for integer and combinatorial optimization".

A selection of short papers presented at ISCO 2012 has been published by Springer-Verlag in the Electronic Notes in Discrete Mathematics (ENDM): ISCO2010 ENDM volume.

A special issue in Discrete Applied Mathematics (DAM) DAM special issue has been published.


The second issue has been moved to the other side of the Mediterranean Sea in Athens, Greece in April 2014. This second conference has been organized with colleagues from the Athens University Of Economics & Business in the deep center of the famous town. From this conference, ISCO topics has been extended to Theoretical Computer Science aspects of Combinatorial Optimization. A Spring School was organized around "Mathematical Programming and Design of Approximation Algorithms" with lectures by David Shmoys and David Williamson from Cornell University, USA.

A selection of short papers presented at ISCO 2012 has been published by Elsevier in the Lecture Notes in Computer Science (LNCS): ISCO2012 LNCS volume.

A Mathematical Programming special issue, a Theoretical Computer Science (TCS) special issue and a RAIRO Operation Research special issue have been published.



The third issue has been organized on the side of the Atlantic Ocean in Lisbon, Portugal in March 2014. A Spring School on "Stochastic Programming" will be organized before the conference by Rüdiger Schultz (University of Duisburg-Essen, Germany) and Jonas Schweiger (Zuse Institute Berlin, Germany).

A selection of short papers presented at ISCO 2014 has been published by Springer-Verlag in the Lecture Notes in Computer Science (LNCS): ISCO2014 LNCS volume.

A special issue of Discrete Optimization will be soon published.


The fourth issue came back to the Mediterranean Sea in Vietri Sul Mare, Italy in April 2016. The Spring School was dedicated to "Extended Formulations for Combinatorial Optimization" with lectures by Volker Kaibel from Otto-von-Guericke University, Magdeburg, Germany and Samuel Fiorini from the Free University of Bruxelles, Belgium.

A selection of short papers presented at ISCO 2016 has been published by Springer-Verlag in the Lecture Notes in Computer Science (LNCS): ISCO2016 LNCS volume.

Two special issues, one in Networks and one in Journal of Combinatorial Optimization are in editing process from October 1st 2016.


Steering Comittee

The ISCO steering comittee is

  • Mourad Baiou (LIMOS, CNRS, Univ. Blaise Pascal, Clermont-Fd, France)
  • Pierre Fouilhoux (University Pierre et Marie Curie, France)
  • Luis Eduardo Neves Gouveia (CIO, University of Lisbon, Portugal)
  • Vangelis Paschos (University Paris Dauphine, France)
  • Nelson Maculan (Federal University of Rio de Janeiro, Brasil)
  • A. Ridha Mahjoub (University Paris Dauphine, France)
  • Giovanni Rinaldi (IASI, Roma, Italy)