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Research in the Coconut team focuses on Constraint Programming, with a special interest in:

  • constraint propagation and complexity of constraint satisfaction,
  • constraint acquisition, data mining and validation,
  • interval constraint programming,
  • precision agriculture.

Other topics of interest are symmetries, cost function networks, adaptive solving, and distributed constraint reasoning.

News +

Feb 01, 2020

This year, three MSc students have chosen COCONUT for their Master's thesis: Elisa Gueneau, Verlein Radwan and Rami Younes. They will be part of the group for the next 6 months. Welcome on board!

Oct 27, 2019

Nassim Belmecheri, joint PhD student at LITIO (Université Oran 1) and LIRMM, joins the team for nine months.

Oct 17, 2019

Farah Amel Benzeghimi starts a PhD thesis on "Numerical Pattern Mining Based on Constraint Programming". She will be supervised by Nadjib and Christian.

Jul 01, 2019

We are pleased to receive Ignacio Araya, from Universidad Técnica Federico Santa María, as a visitor for 3 weeks.

Jul 01, 2019

Victor Reyes joins the team for a one-year postdoc.

Apr 04, 2019

Teddy Le, second year student at IUT Montpellier, joins the team for three months.

Feb 04, 2019

Mehdi Zrhal, M2 student at University of Montpellier, joins the team for five months.

Jan 01, 2019

Clément Carbonnel joins the team as CNRS Researcher.

Nov 19, 2018

Olivier Sans defends his PhD on "Interval methods and node selection strategies for constrained global optimisation".

Sep 13, 2018

Robert Woodward defends his PhD on "Higher-Level Consistencies: Where, When, and How Much".

Dec 01, 2017

We are pleased to receive Berthe Choueiry, from University of Nebraska, as a visitor for one month.

Nov 15, 2017

Nicolas Briot defends his PhD on "Constraint Programming for Routing in Precision Agriculture"

Apr 03, 2017

We are pleased to receive Yahia Lebbah, from University of Oran, as a visitor for one week.

Mar 13, 2017

We are pleased to receive Noureddine Aribi, from University of Oran, as a visitor for one week.

Feb 23, 2017

Jérôme Lang has visited Coconut for two days. He gave a talk on social choice

Oct 01, 2016

Mohamed Bachir Belaid starts his PhD Thesis

Oct 02, 2015

We are pleased to receive Redouane Ezzahir, from Agadir, as a visitor until end of October

Oct 01, 2015

Robin Arcangioli starts his PhD on "constraints, from acquisition to validation"

Sep 28, 2015

Yahia Lebbah visited Coconut during 1 week.

Sep 14, 2015

Mehdi Maamar joins us for 9 months working on Fault localization and Constraint based mining

Sep 02, 2015

Anastasia Paparrizou has received the ACP doctoral research award 2015 for her PhD thesis, presented at UOWM, Nov 2013. The ceremony took place during CP'15 in Cork, Ireland.

Mar 31, 2015

We hosted the meeting of the FET ICON at Lirmm during 2 days.

Mar 03, 2015

Christophe Lecoutre visited Coconut during 1 week.

Dec 01, 2014

Amine Balafrej joins the EMN contraints team

Nov 24, 2014

Amine Balafrej defends his PhD on Adaptative Propagation.

Sep 29, 2014

Jérôme Lang will give us a talk on: Introduction au choix social computationnel

Jun 23, 2014

Anastasia has received an honourable mention at the ECCAI Dissertation Award. Congratulations!

May 19, 2014

Christophe Lecoutre visited Coconut during 1 week.

Apr 11, 2014

Jean-Marie Lagniez will give us a talk on: A Computational Method for (MSS,CoMSS) Partitioning

Mar 28, 2014

Yahia Lebbah will give us a talk on: An interval based approach for graph-mining

Mar 21, 2014

Carmen Gervet will give us a talk on: How to boost AI and constraint programming to tackle real-world combinatorial problems: set objects and uncertain data parameters

Feb 21, 2014

Lakhdar Sais will give as a talk on Declarative aproaches for Data Mining

Nov 25, 2013

Christophe Lecoutre visited Coconut during 1 week.

Sep 24, 2013

John Slaney will give us a talk on Duality: A Fundamental Feature of Combinatorial Optimisation

Sep 19, 2013

The Coconut group is happy to have Berthe Choueiry as a visitor for the next few months

Sep 05, 2013

Robert Woodward arrives for one year in the Coconut group. Welcome to you!

Jun 10, 2013

Bertrand Neveu visited Coconut during 2 days to work with Philippe Vismara, Gilles Trombettoni and Clément Carbonnel on the q-intersection operator.

Jun 10, 2013

From June 10 to 21, Anastasia Paparrizou visited Coconut. She gave us a seminar on her recent work (eSTR).

Apr 08, 2013

We hosted the meeting of the FET ICON at Lirmm during 2 days.

Mar 29, 2013

Johan Thapper gives us a talk about "The Power of OSAC"

Mar 15, 2013

Felip Manyà gives us a talk about Encoding and Solving Optimization Problems with MinSAT and MaxSAT

Jan 09, 2013

We hosted the meeting of the ANR BR4CP at Lirmm during 2 days.

Nov 19, 2012

Amine, Christian, Remi and Nadjib move for a 3 days meeting in PISA

Oct 01, 2012

Nadjib Lazaar joins us to work on the ICON project.

Sep 01, 2012

Gilles Trombettoni joins the Coconut team

Sep 01, 2012

Mohamed Wahbi joins the EMN contraints team

Jul 03, 2012

Mohamed Wahbi defends his PhD on Distributed CSP

Jun 04, 2012

Basile Clement joins the team for 2 months

Jan 03, 2012

Gregor Hendel joins the team for 3 months

May 16, 2011

Jordi Planes, from Lleida University, who works on SAT/maxSAT, gives a talk

Apr 21, 2011

Gilles Trombettoni gives a talk about continuous non convex problems.

Apr 07, 2011

Frederic Maris talks about various aspects of time in Planning and Problem Transform.

Mar 22, 2011

Romaric Gaudel speaks of combinatorial aspects of Machine Learning.

Nov 30, -0001

On a la visite de Jérôme Lang, qui nous fait un séminaire sur le choix social.

Nov 30, -0001

We had the pleasure to receive Berthe Choueiry for one month.

November 25, 2010: Laurent Simon

Laurent gives a seminar on SAT

September 16, 2010: Byebye Yonggang

Yonggang gives his last talk before going back in China.

May 6, 2010: Pedro gives a talk

Pedro Meseguer presents their work on BnB-Adopt

May-June, 2010: Pedro and Patricia

Pedro Meseguer and Patricia Guttierez, from IIIA-CSIC, visit the Coconut group.

October 22, 2009: Yonggang Zhang

Yonggang Zhang makes a presentation to describe his background, his chinese team at University of Jilin, and his former research. He will stay with us during one year. Welcome to Yonggang!

June 3, 2009: IJCAI Distinguished Paper Award!

We just learned that Frederic and Bruno Zanuttini will receive the IJCAI award for their paper on CP-net elicitation!

May 18--22, 2009: Comics meet in Montpellier

George Katsirelos joins the Comic group!

December 18, 2008: Guillaume's viva

Guillaume Verger defends his PhD on quantification in CSPs.

October 23, 2008: Canar visit

Julien Vion, currently postdoc in Canar, EMN Nantes, visited us to present his current work on detection of implicit constraints.

October 16, 2008: Microelectronics

Exciting meeting with P. Benoit, D. Puschini and L. Torres, from the mic dept. They presented their current work on systems on chips.

July 3, 2008: Mathias Paulin

Mathias Paulin defends his PhD on constraint acquisition for designing actions for robots.

June 12, 2008: Samba Ndiaye

Samba Ndiaye, LSIS Marseille, gives us a talk on the complexity of forward-checking and the decomposition hierarchy.

May 26--30, 2008: Comic meeting

A new member in the Comic group: welcome to Nina Naroditskaya!

Apr. 10, 2008: Cedric Piette

Cedric Piette, CRIL Lens, gives a seminar to the coconuts (Extracting MUS and MUST in SAT and CSPs).

Apr. 3, 2008: Jean-Christophe Janodet

Jean-Christophe Janodet, Curien lab in Saint Etienne, gives a seminar to the coconuts (Learning balls of words by correction queries).

Mar. 27, 2008: Xavier Lorca

Xavier Lorca, EMN Nantes, gives a seminar to the coconuts (Partitionnement de graphes).

Mar. 20, 2008: Idir Khemmoudj

Idir Khemmoudj gives a seminar to the coconuts.

Jan. 11, 2008: Brahim's viva

Brahim Hnich presents his habilitation at the University of Montpellier

Jan. 7--10, 2008: Comic meeting

The Comics meet in Montpellier

Dec. 26, 2006: Dischoco now available

See Dischoco

Oct. 2--6, 2006: Comic meeting

The Comics meet in Montpellier

Aug. 30, 2006: An ECCAI fellow in Coconut

C. Bessiere has become an ECCAI fellow during the ECAI conference in Riva del Garda

Jul. 07, 2006: R. Coletta's viva

Remi Coletta defends his PhD at the U. of Montpellier

Mar. 23, 2006: CP(Graph)

Yves Deville presents CP(Graph) to the Coconut members

Feb. 21, 2006: Microsoft research

Y. Hamadi and L. Bordeaux, from MSR Cambridge visit us for the constraint acquisition project

Sep. 1, 2005: Eric Bourreau

Eric Bourreau, from Elab/Bouygues, joins the Coconut group in Montpellier.

Mar. 17, 2005: Gilles Pesant visits us

Gilles Pesant, from U. Montreal, gives a seminar in Montpellier.

Oct. 5--12, 2004: The Comics meet again

The australian, irish and italian sides of the Comic group visit its French part in Montpellier

April 3--17, 2004: Mimic's visit

Toby, Brahim, Manu and Zeynep take the sun on the Comedie place.

Dec. 19, 2003: Manu

Manu Hebrard visits Coconut for the third time.

Dec. 18, 2003: Coconut thesis

Hervé Cros defends his PhD.

Nov. 24--27, 2003: The Spaniards...

Pedro Meseguer and Ismel Brito (IIIA-CSIC, Bellaterra) visit us and attend the Miss France 2004 competition :)

Nov. 17--19, 2003: 4C in Montpellier again

After Toby Walsh, Brahim Hnich and Manu Hebrard, Barry O'Sullivan spends a week in Montpellier.

Sept. 10--20, 2003: 4C in Montpellier!!

Toby Walsh, Brahim Hnich and Emmanuel Hebrard visit the Coconut group.

July 01, 2003: Site Launch

The new web page is online.