I am a member of ROC research group within the LAAS lab.

I am interested in graph theory and discrete optimization in general.

My doctoral dissertation as well as my habilitation deal with identifying codes in graphs. My Ph.D. supervisor was Sylvain Gravier ; I used to be the co-supervisor of Marwane Bouznif's, Julien Darlay's and Widad Dali's doctoral works. I also supervised Pierre Coupechoux's Ph.D. I am also the co-supervisor of Hillal Touati, who works on identifying codes in directed graphs, and of Salma Bensid, who works on machine learning and predictive maintenance.

I belong to the maths à modeler transdisciplinary research group. I am also a member of the informal research group TORO (Toulouse Optimization and Operations Research).

Here are the publications in refeered international journals I contributed to:

- Marwane Bouznif, Julien Moncel, Myriam Preissmann,
*Exact values for three domination-like problems in circular and infinite grid graphs of small height*, accepted in Discrete Mathematics and Theoretical Computer Science - Laurent Beaudou, Pierre Coupechoux, Antoine Dailly, Sylvain Gravier, Julien Moncel, Aline Parreau, Éric Sopena,
*Octal games on graphs: The game 0.33 on subdivided stars and bistars*, Theoretical Computer Science**746**(2018), 19–35 - Paul Dorbec, Éric Duchêne, André Fabbri, Julien Moncel, Aline Parreau, Éric Sopena,
*Ice sliding games*, International Journal of Game Theory**47(2)**(2018), 487–508 - Gerd Finke, Ahmed Gara-Ali, Marie-Laure Espinouse, Vincent Jost, Julien Moncel,
*Unified matrix approach to solve production-maintenance problems on a single machine*, Omega**66(A)**(2017), 140–146 - Marwane Bouznif, Julien Moncel, Myriam Preissmann,
*A constant time algorithm for some optimization problems in rotagraphs and fasciagraphs*, Discrete Applied Mathematics**208**(2016), 27–40 - Julien Moncel, Jérémie Thiery, Ariel Waserhole,
*Computational performances of a simple interchange heuristic for a scheduling problem with an availability constraint*, Computers and Industrial Engineering**67**(2014), 216–222 - Sylvain Gravier, Matjaž Kovše, Michel Mollard, Julien Moncel, Aline Parreau,
*New results on variants of covering codes in Sierpiński graphs*Designs, Codes and Cryptography**69(2)**(2013) 181–188 - Nadia Brauner, Julien Darlay, Julien Moncel,
*Dense & sparse graph partition*, Discrete Applied Mathematics**160(16–17)**(2012), 2389–2396 - Marwane Bouznif, Julien Moncel, Myriam Preissmann,
*Generic algorithms for some decision problems on fasciagraphs and rotagraphs*, Discrete Mathematics**312(17)**(2012), 2707–2719 - Yael Ben-Haim, Sylvain Gravier, Antoine Lobstein, Julien Moncel,
*Adaptive identification in torii in the king lattice*, Electronic Journal of Combinatorics**18(1)**P116 (2011) - Éric Duchêne, Sylvain Gravier, Julien Moncel,
*New results about impartial solitaire clobber*, RAIRO–Operations Research,**43**(2009), 463–482 - Yael Ben-Haim, Sylvain Gravier, Antoine Lobstein, Julien Moncel,
*Adaptive identification in graphs*, Journal of Combinatorial Theory Series A**115(7)**(2008), 1114–1126 - Sylvain Gravier, Julien Moncel, Ahmed Semri,
*Identifying codes of cartesian product of two cliques of the same size*, Electronic Journal of Combinatorics**15(1)**N4 (2008) - Sylvain Gravier, Ralf Klasing, Julien Moncel,
*Hardness results and approximation algorithms for identifying codes and locating-dominating codes in graphs*, Algorithmic Operations Research**3(1)**(2008), 43–50 - Tero Laihonen, Julien Moncel,
*On graphs admitting codes identifying sets of vertices*, Australasian Journal of Combinatorics**41**(2008), 81–91 - Mostafa Blidia, Mustapha Chellali, Frédéric Maffray, Julien Moncel, Ahmed Semri
*Locating-domination and identifying codes in trees*, Australasian Journal of Combinatorics**39**(2007), 219–232 - Alan Frieze, Ryan Martin, Julien Moncel, Miklós Ruszinkó, Clifford Smyth,
*Codes identifying sets of vertices in random networks*, Discrete Mathematics**307(9-10)**(2007), 1094–1107 - Sylvain Gravier, Julien Moncel,
*On graphs having a V–{x} set as an identifying code*, Discrete Mathematics**307(3-5)**(2007), 432–434 - Sylvain Gravier, Julien Moncel, Charles Payan,
*A generalization of the pentomino exclusion problem: Dislocation of graphs*, Discrete Mathematics**307(3-5)**(2007), 435–444 - Julien Moncel,
*Constructing codes identifying sets of vertices*, Designs, Codes and Cryptography**41(1)**(2006), 23–31 - Julien Moncel,
*On graphs on n vertices having an identifying code of cardinality log*, Discrete Applied Mathematics_{2}(n+1)**154(14)**(2006), 2032–2039 - Irène Charon, Sylvain Gravier, Olivier Hudry, Antoine Lobstein, Michel Mollard, Julien Moncel,
*A linear algorithm for minimum 1-identifying codes in oriented trees*, Discrete Applied Mathematics,**154(8)**(2006), 1246–1253 - Julien Moncel,
*Monotonicity of the minimum cardinality of an identifying code in the hypercube*, Discrete Applied Mathematics**154(6)**(2006), 898–899 - Sylvain Gravier, Julien Moncel, Ahmed Semri,
*Identifying codes of cycles*, European Journal of Combinatorics**27(5)**(2006), 767–776 - Sylvain Gravier, Julien Moncel,
*Construction of codes identifying sets of vertices*, Electronic Journal of Combinatorics**12(1)**R13 (2005) - Marc Daniel, Sylvain Gravier, Julien Moncel,
*Identifying codes in some subgraphs of the square lattice*, Theoretical Computer Science**319(1-3)**(2004), 411–421