Publications

2018

• A. Kemmar, Y. Lebbah, S. Loudni
  Interval graph mining, IJDMMM 10(1): 1-22, 2018.

2017

• W. Ugarte, P. Boizumault, B. Crémilleux, A. Lepailleur, S. Loudni, M. Plantevit, C. Raïssi, A. Soulet
  Skypattern mining: From pattern condensed representations to dynamic constraint satisfaction problems, Artificial Intelligence, 244: 48-69, 2017. Paper.
• M. Maamar, N. Lazaar, S. Loudni, Y. Lebbah
  Fault localization using itemset mining under constraints, Automated Software Engineering, 24(2): 341-368, 2017. Paper.
• A. Kemmar, Y. Lebbah, S. Loudni, P. Boizumault, T. Charnois
  Prefix-projection global constraint and top-k approach for sequential pattern mining, Constraints 22(2): 265-306, 2017. Paper.

2016

• D. Allouche, C. Bessière, P. Boizumault, S. de Givry, P. Gutierrez, J. H. M. Lee, K. L. Leung, S. Loudni, J-P. Métivier, T. Schiex, Y. Wu
  Tractability-preserving transformations of global cost functions, Artificial Intelligence, 238: 166-189, 2016.
• A. Kemmar, Y. Lebbah, S. Loudni:
  A Constraint Programming Approach for Web Log Mining, International Journal of Information Technology and Web Engineering (IJITWE), 11(4): 24-42, 2016.
• A. Kemmar, Y. Lebbah, S. Loudni, P. Boizumault, T. Charnois
  Une contrainte globale pour l'extraction de motifs séquentiels, Revue d'Intelligence Artificielle (RIA), 30(6): 675-703, 2016.

2015

• A. Ouali, S. Loudni, L. Loukil, P. Boizumault, Y. Lebbah
  Replicated Parallel Strategies for Decomposition Guided VNS, 47: 93-100, 2015. Paper
• W. Ugarte, P. Boizumault, S. Loudni, B. Crémilleux, A. Lepailleur
  Soft Constraints for Pattern Mining, Journal of Intelligent Information Systems (JIIS), 44(2): 193-221, 2013. Paper
• W. Ugarte, P. Boizumault, S. Loudni, B. Crémilleux, and A. Lepailleur
  Mining (Soft-) Skypatterns using Constraint Programming, in Advances in Knowledge Discovery and Management (AKDM 5), Series: Studies in Computational Intelligence, pp. 105-136, Springer, 2015.

2013

• M. Fontaine, S. Loudni, P. Boizumault
  Exploiting Tree Decomposition for Guiding Neighborhoods Exploration for VNS, RAIRO - Operations Research 47(2): 91-123, 2013. Paper

2012

• M. Fontaine, S. Loudni, P. Boizumault
  Exploiting Separators for Guiding VNS, Electronic Notes in Discrete Mathematics (ENDM), 39: 265-272, 2012. Paper

2010

• S. Loudni, P. Boizumault, N. Levasseur
  Advanced generic neighborhood heuristics for VNS, Engineering Applications of Artificial Intelligence (EAAI), 23(5): 736-764, 2010.

2008

• S. Loudni and P. Boizumault
  Combining VNS with Constraint Programming for Solving Anytime Optimization Problems, European Journal of Operational Research (EJOR), 191(3): 705-735, 2008. Paper

2006

• S. Loudni, P. Boizumault, P. David
  On-line Resources Allocation for ATM Networks with Rerouting, Computers & Operations Research 33(10): 2891-2917, 2006. Paper

2004

• S. Loudni and P. Boizumault
  Optimisation sous contraintes en contexte anytime
  , Journal électronique d'intelligence artificielle 3(29):1-16, Mars 2004.

2003

• S. Loudni, P. Boizumault, P. David
  Réservation en ligne avec reroutage de demandes de connexion dans les réseaux ATM, Revue des Sciences et Technologies de l'information(RSTI), hors série/JFPLC 2003, Hermès:169-182, Juin 2003. Paper

2018

N. Aribi, A. Ouali, Y. Lebbah, S. Loudni
Equitable Conceptual Clustering Using OWA Operator, 22th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD 2018), Lecture Notes in Computer Science, pp. 465-477, Springer, Melbourne, VIC, Australia, June 3-6, 2018.

2017

• A. Ouali, A. Zimmermann, S. Loudni, Y. Lebbah, B. Crémilleux, P. Boizumault, L. Loukil
  Integer linear programming for pattern set mining ; with an application to tiling, 21th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD 2017), Lecture Notes in Computer Science, pp. 286-299, Springer, Jeju, South Korea, May 2017.
• A. Ouali, D. Allouche, S. de Givry, S. Loudni, Y. Lebbah, L. Loukil
  Iterative Decomposition Guided Variable Neighborhood Search for Graphical Model Energy Minimization (UAI 2017), Australia, August 11-15, 2017. Paper.
• N. Aribi, M. Maamar, N. Lazaar, Y. Lebbah, S. Loudni
  Multiple Fault Localization Using Constraint Programming and Pattern Mining. (ICTAI 2017), IEEE Computer Society, pp. 860--867, Boston, MA, USA, November 6-8, 2017.

2016

• N. Lazaar, Y. Lebbah, S. Loudni, M. Maamar, V. Lemière, C. Bessiere, P. Boizumault
  A Global Constraint for Closed Frequent Pattern Mining, 22nd Int. Conf. on Principles and Practice of Constraint Programming (CP 2016), Lecture Notes in Computer Science, N. 9892, Springer, pp 333-349, Toulouse, France, September 2016. Paper.
• A. Kemmar, S. Loudni, Y. Lebbah, P. Boizumault, T. Charnois
  A Global Constraint for Mining Sequential Patterns with GAP Constraint, 13th Int. Conf. on Integration of Artificial Intelligence (AI) and Operations Research (OR) techniques in Constraint Programming (CPAIOR 2016), Lecture Notes in Computer Science, N. 9676, Springer, pp. 198-215, Banff, AB, Canada, May 2016.
• A. Ouali, S. Loudni, Y. Lebbah, P. Boizumault, A. Zimmermann, L. Loukil:
  Efficiently Finding Conceptual Clustering Models with Integer Linear Programming, Twenty-Fifth International Joint Conference on Artificial Intelligence (IJCAI 2016), IJCAI/AAAI Press, pp. 647-654, New York, NY, USA, 9-15 July 2016.

2015

• A. Kemmar, S. Loudni, Y. Lebbah, P. Boizumault, T. Charnois
  PREFIX-PROJECTION Global Constraint for Sequential Pattern Mining, 21st Int. Conf. on Principles and Practice of Constraint Programming (CP 2015), Lecture Notes in Computer Science, N. 9255, Springer, pp 226-243, Cork, Ireland, August 2015. Paper.
• W. Ugarte, P. Boizumault, S. Loudni, B. Crémilleux
  Modeling and Mining Optimal Patterns using Dynamic CSP, IEEE Int. Conf. on Tools with Artificial Intelligence (ICTAI 2015), IEEE Computer Society, pp. 30-40, Vietri Sul Mare, Italy, November 2015.

2014

• W. Ugarte, P. Boizumault, S. Loudni, B. Crémilleux, A. Lepailleur
  Mining (Soft-)Skypatterns using Dynamic CSP, 11th Int. Conf. on Integration of Artificial Intelligence (AI) and Operations Research (OR) techniques in Constraint Programming (CPAIOR 2014), Lecture Notes in Computer Science, N. 8451, Springer, pp. 71-87, Cork, Ireland, May 2014. Paper.
• W. Ugarte, P. Boizumault, S. Loudni, B. Crémilleux
  Computing skypattern cubes, 21st European Conference on Artificial Intelligence (ECAI 2014), IOS Press, pp. 903-908, Prague, Czech Republic, August 2014. Paper.
• J-P. Métivier, S. Loudni, T. Charnois
  Une approche PPC pour la fouille de données séquentielles, 14èmes Journées Francophones Extraction et Gestion des Connaissances (EGC 2014), Hermann, pp. 395-400, Rennes, France, Janvier 2014.
• A. Ouali, S. Loudni, L. Loukil, P. Boizumault, Y. Lebbah
  Cooperative Parallel Decomposition Guided VNS for Solving Weighted CSP, Hybrid Metaheuristics - 9th International Workshop (HM 2014), Lecture Notes in Computer Science, N. 8457, Springer, pp 100-114, Hamburg, Germany, June 2014.
• A. Kemmar, W. Ugarte, S. Loudni, T. Charnois, Y. Lebbah, P. Boizumault, B. Crémilleux
  Mining Relevant Sequence Patterns with CP-based Framework, IEEE Int. Conf. on Tools with Artificial Intelligence (ICTAI 2014), IEEE Computer Society, pp. 552-559, Limassol, Cyprus, November 2014. Paper.
• W. Ugarte, P. Boizumault, S. Loudni, B. Crémilleux
  Computing skypattern cubes using relaxation, IEEE Int. Conf. on Tools with Artificial Intelligence (ICTAI 2014), IEEE Computer Society Press, Limassol, pp. 859-866, Cyprus, November 2014. Paper.

2013

• S. Loudni, M. Fontaine, Boizumault
  Intensification/Diversification in Decomposition Guided VNS, Hybrid Metaheuristics - 8th International Workshop (HM 2013), Lecture Notes in Computer Science, N. 7919, Springer, pp 22-36, Ischia, Italy, May 2013.
• W. Ugarte, P. Boizumault, S. Loudni, B. Crémilleux, Alban Lepailleur
  Découverte des soft-skypatterns avec une approche PPC, 13èmes Journées Francophones Extraction et Gestion des Connaissances (EGC 2013), Hermann, pp. 217-228, Toulouse, France, Février 2013.

2012

• J-P. Métivier, P. Boizumault, B. Crémilleux, M. Khiari, S. Loudni
  Constrained Clustering using SAT, 11th Int. Symposium on Intelligent Data Analysis (IDA 2012), Lecture Notes in Computer Science, N. 7619, Springer, pp. 207-218, Helsinki, Finland, October 2012. Paper.
• W. Ugarte, P. Boizumault, S. Loudni, B. Crémilleux
  Soft Threshold Constraints for Pattern Mining, 15th Int. Conf. on Discovery Science (DS 2012), Lecture Notes in Computer Science, N. 7569, Springer, pp. 313-327, Lyon, France, October 2012. Paper. Best paper.
• J-P. Métivier, P. Boizumault, B. Crémilleux, M. Khiari, S. Loudni
  A Constraint-based Language for Declarative Pattern Discovery, 27th Int. Conf. Symposium On Applied Computing (SAC 2012), ACM Press, pp. 438-444, Riva del Garda (Trento), Italy, May 2012. Paper.
• D. Allouche, C. Bessière, P. Boizumault, S. de Givry, P. Gutierrez, S. Loudni, J-P. Métivier, T. Schiex
  Filtering Decomposable Global Cost Functions, Twenty-Sixth AAAI Conference on Artificial Intelligence (AAAI 2012), AAAI Press, Toronto, Ontario, Canada, July 2012.
• Samir Loudni
  Intensification/Diversification-Driven ILS for a Graph Coloring Problem, Evolutionary Computation in Combinatorial Optimization - 12th European Conference (EvoCOP 2012), Lecture Notes in Computer Science, N. 7245, Springer, pp. 160-171, Malaga, Spain, April 2012. Paper.
• A. Kemmar, Y. Lebbah, M. Ouali, S. Loudni
  Complete and Incomplete Approaches for Graph Mining, 4th International conference on Web and Information Technologies (ICWIT 2012), pp. 312--317, Sidi Bel Abbes, Algeria, April 2012.

2009

• J-P. Métivier, P. Boizumault and S. Loudni
  Softening gcc and regular with preferences, Proceedings of the 24th annual ACM Symposium on Applied Computing (SAC'09), pp 1392-1396, University of Hawaii at Manoa, USA, March 2009.
• J-P. Métivier, P. Boizumault and S. Loudni
  Solving nurse rostering problems using soft global constraints, 15th International Conference on Principles and Practice of Constraint Programming (CP 2009), Lecture Notes in Computer Science, N. 5732, Springer, pp 73-87, Lisbon, Portugal, September 2009.
• Relaxation de contraintes globales pour la résolution de nurse-rostering problems.
  J-P. Métivier, P. Boizumault and S. Loudni, Actes des 5-ièmes Journées Francophones de Programmation par Contraintes (JFPC'09), pp 155-164, Orléans (France), Juin 2009.
• Softening gcc with preferences.
  J-P. Métivier, P. Boizumault and S. Loudni, Actes du dixiéme Congrés de la Société Française de recherche Opérationnelle et d'Aide à  la Décision (ROADEF'09), pp 39-40, Nancy (France), 2009.

2008

• Conflict based neighborhood heuristics for VNS.
  N. Levasseur, P. Boizumault, and S. Loudni, Proceedings of the 2nd International Conference on Metaheuristics and Nature Inspired Computing (META'08), pp 1-2, Hammamet, Tunisia, 2008.
• Boosting VNS with neighborhood heuristics for solving constraint optimization problems.
  N. Levasseur, P. Boizumault, and S. Loudni, Proceedings of the 5-th Hybrid Metaheuristics (HM'08), pp 131-145, volume 5296 of LNCS, Malaga, Spain, 2008.
• Heuristique de choix de valeur dirigée par h-quality dans les WCSP.
  N. Levasseur, P. Boizumault, and S. Loudni, Actes des 4-ièmes Journées Francophones de Programmation par Contraintes (JFPC'08), pp 257-266, Nantes (France), Juin 2008.
• Heuristiques de choix de voisinage pour les recherches à  voisinage variable dans les WCSP.
  N. Levasseur, P. Boizumault, and S. Loudni, Actes des 4-ièmes Journées Francophones de Programmation par Contraintes (JFPC'08), pp 247-256, Nantes (France), Juin 2008.
• Relaxation de alldifferent avec préférences.
  J-P. Métivier, P. Boizumault and S. Loudni, Actes des 4-ièmes Journées Francophones de Programmation par Contraintes (JFPC'08), pp 191-200, Nantes (France), Juin 2008.

2007

• A value ordering heuristic for Weighted CSP
  N. Levasseur, P. Boizumault and S. Loudni, Proceedings of the 19th IEEE International Conference on Tools with Artificial Intelligence (ICTAI'07), pp 259-262, Patras, Greece, November 2007.
• Softening alldifferent in Weighted CSP.
  J-P. Métivier, P. Boizumault and S. Loudni, Proceedings of the 19th IEEE International Conference on Tools with Artificial Intelligence (ICTAI'07), pp 223-230, Patras, Greece, November 2007.
• Une heuristique de sélection de valeur dirigée par l'impact pour les WCSP.
  N. Levasseur, P. Boizumault, and S. Loudni, Actes du huitième Congrés de la Société Française de recherche Opérationnelle et d'Aide à  la Décision (FRANCORO/ROADEF'07), pp 295-296, Grenoble (France), 2007.

2005

• Combining VNS with Constraint Programming for Solving Anytime Optimization Problems
  S. Loudni and P. Boizumault,Proceedings of 18th Mini EURO Conference on Variable Neighborhood Search (MECVNS), pp 1-10, Tenerife (SPAIN), November 2005.
• Routage multi-contraintes de chemin
  S. Loudni and P. Boizumault, Actes (résumés étendus) du Sixième Congrés de la Société Française de recherche Opérationnelle et d'Aide à  la Décision (ROADEF'05), pp 1-2, Tours (France), 2005. [PDF]

2003

• Solving Constraint Optimization Problems in Anytime contexts
  S. Loudni and P. Boizumault, Proceedings of Eighteenth International Joint Conference on Artificial Intelligence (IJCAI'03), Acapulco, Mexico (Mexique), August 2003. [PDF]
• On-line Resources Allocation for ATM Networks with Rerouting.
  S. Loudni, P. Boizumault, and P. David, Proceedings of Fifth International Conference on Integration of AI and OR Techniques in Constraint Programming (CP-AI-OR 2003), pp 195-209, Montréal (Canada), May 2003.
• Optimisation sous contraintes en contexte anytime
  S. Loudni and P. Boizumault, Actes des 9ièmes Journées Nationales sur la résolution Pratique de Problèmes NP-Complets (JNPC'03), pp 263-276, Amiens (France), Juin 2003.
• Réservation en ligne avec reroutage de demandes de connexion dans les réseaux ATM.
  S. Loudni, P. Boizumault, and P. David, Actes des Journées Francophones de Programmation en Logique et par Contraintes (JFPLC'03), pp 169-182, Amiens (France), Juin 2003. Hermès.

2001

• A New Hybrid Method for Solving Constraint Optimization Problems in Anytime Contexts
  S. Loudni and P. Boizumault, Proceedings of the 13th IEEE International Conference on Tools with Artificial Intelligence (ICTAI'01), pp 325-332, Dallas (USA), IEEE Computer Society, November 2001.
• VNS/LDS+CP : A Hybrid Method for Constraint Optimization in Anytime Contexts
  S. Loudni and P. Boizumault, Proceedings of the 4th Metaheuristics International Conference (MIC'2001), pp 761-766, Porto (Portugal), Jully 2001.[PDF]
• Une méthode hybride combinant la Recherche à  Voisinage Variable et la Recherche à  Déviation Limitée pour la résolution des VCSP
  S. Loudni and P. Boizumault, Actes des 7ièmes Journées Nationales sur la résolution Pratique de Problèmes NP-Complets (JNPC'01), pp 173-184, Toulouse (France), Juin 2001.

2008

• Relaxing global constraints in Weighted CSPs
  J-P. Métivier, P. Boizumault, and S. Loudni, Proceedings of the Workshop on Cost Functions Processing, Alenya, France, 2008.

2007

• Heuristics guided by the quality of solutions in Weighted CSPs,
  N. Levasseur, P. Boizumault, and S. Loudni, Proceedings of the 13th International Conference on Principles and Practice of Constraint Programming, (Doctoral Program CP'07), pages 61-66, Providence, RI, USA, 2007.
• A decomposition based softening of alldifferent in Weighted CSPs,
  J-P. Métivier, P. Boizumault, and S. Loudni, Proceedings of the 13th International Conference on Principles and Practice of Constraint Programming, (Doctoral Program CP'07), pages 90-96, Providence, RI, USA, 2007.
• Heuristics guided by the quality of solutions in Weighted CSPs,
  N. Levasseur, P. Boizumault, and S. Loudni, Proceedings of the 13th International Conference on Principles and Practice of Constraint Programming, (International Workshop on Autonomous Search, CP'07), pages 1-15, Providence, RI, USA, 2007.
• Etude et mise en oeuvre des mécanismes du protocole de routage dynamique OSPF,
  Samir Loudni, Actes du 1er Workshop pédagogique Réseaux & Télécoms, pages 1-6, Saint-Pierre, La Réunion, 2007.
• Validation des mécanismes IPv6,
  Samir Loudni, Actes du 1er Workshop pédagogique Réseaux & Télé©coms, pages 1-6, Saint-Pierre, La Réunion, 2007.

2002

• A Repair Based Approach for Planning Connection Demands in ATM Networks
  S. Loudni, P. Boizumault, and P. David, Proceedings of Fourth International Workshop on Soft Constraints (Soft-02), pp 31-41, Ithaca (USA), September 2002.

2001

• Towards an On-Line Optimisation Framework,
  EOLE Consortium, CP 2001 Workshop on On-Line Combinatorial Problem Solving and Constraint Programming (OLCP'01), Paphos (Cyprus), December 2001.[PDF]