Studies

• 2001 - 2006 : Master of Science in Mathematics, Ghent University, Belgium.
• 2007 - 2012 : PhD in Computer Science, Ghent University, Belgium

Work

• August 2006 - September 2007 : co-worker of GrInvIn-project at Ghent University
• October 2007 - September 2013: Research assistent at Ghent University
• November 2013 - December 2014: Research Assistant (postdoc) at University of West Bohemia
• September 2014 - September 2020: Post-doctoral assistant at Ghent University

Teaching

I teach / have taught the following courses

• Programming (I) (Java) (exercises for the bachelors computer science, mathematics, physics and geography) (2007 - 2012)
• Programming (II) (Java) (exercises for the bachelors computer science) (2007 - 2013)
• Computer science (VBA and use of MS Office) (exercises for the bachelors biochemistry/biotechnology, chemistry, geology and geography) (2007 - 2011)
• Programming (Python) (exercises for the bachelors biochemistry/biotechnology, chemistry, geology and geography) (2011 - 2013)
• Programming (I) (Java) (exercises for the bachelors computer science, mathematics and physics) (2014 - 2015)
• Analysis I (for the bachelors computer science) (2015 - 2016)
• Algorithms and Data-structures 2 (exercises for the bachelors computer science) (2015 - 2020)
• Calculus (for the bachelors computer science) (2017 - 2020)
• Structure generation: a four-part course on structure generation taught at University of West-Bohemia during 2014-2015.

Thesis students

• Pieter Goetschalckx (2014 - 2020)
• Thomas De Praetere, M.S. (2015 - 2016): Drie-dimensionale symmetrische inbedding van grafen
• Karen Hilgert, M.S. (2016 - 2017): Algoritmes voor het testen van printplaten
• Emiel Ergo, M.S. (2016 - 2017): Nanocaps uit fullerenen
• Simon Van den Eynde, M.S. (2017 - 2018): Boundary length of patches with faces of size at most six
• Wouter Van Steenberge, M.S. (2018 - 2019): Restoring Pentagon Clusters in Goldberg Operations
• Seppe Bilcke, M.S. (2019 - 2021)
• Heidi Van den Camp, M.S. (2019 - 2020)
• Thibaut Vermeulen, M.S. (2019 - 2020)
• Lars Lowie (2019 - present)

• Simon Crevals, M.S. (2009 - 2010): Communicatienetwerk voor het GPS III systeem
• Jasper Souffriau, M.S. (2012 - 2013): Hamiltoniaanse cykels in triangulaties
• Annelies Cuvelier, M.S. (2014 - 2015): Grenzen voor het aantal Hamiltoniaanse cykels in triangulaties

Research interest

• Generation of structures in chemistry and mathematics
• Combinatorial geometry
• Tilings
• Mathematical conjecturing
• Development of tools for graph theory
• General (graph) generation algorithms
• Graph theory
• Hamiltonicity and related properties
• Plane and embedded graphs

Publications

1. G. Brinkmann, T. Tucker, N. Van Cleemput, On the genera of polyhedral embeddings of cubic graphs, submitted.
2. P. Brooks, D. Edwards, C.E. Larson, and N. Van Cleemput, Conjecturing-Based Computational Discovery of Patterns in Data, arXiv preprint, submitted.
3. N. Van Cleemput, C. T. Zamfirescu, Hamiltonian cycles and 1-factors in 5-regular graphs, arXiv preprint, submitted.
4. O.-H. S. Lo, J. M. Schmidt, N. Van Cleemput, C. T. Zamfirescu, Shortness parameters of polyhedral graphs with few distinct vertex degrees, submitted.
5. I. Fabrici, M. Timkov, T. Madaras, N. Van Cleemput, C. T. Zamfirescu, Non-hamiltonian graphs in which every edge-contracted subgraph is hamiltonian, submitted.
6. N. Van Cleemput, Generation of Delaney-Dress graphs, submitted.
7. N. Bushaw, J. Chen, H. LaFayette, C. E. Larson, N. Van Cleemput, Conjectured Bounds for the Independence Number of a Graph, submitted.
8. P. Brooks, D. Edwards, C.E. Larson, and N. Van Cleemput, Automated Conjecturing IV: Scientific Discovery and Classification, submitted.
9. N. Bushaw, C.E. Larson, N. Van Cleemput, Automated Conjectures for Graph Hamiltonicity, submitted.
10. G. Brinkmann, N. Van Cleemput, 4-connected polyhedra have at least a linear number of hamiltonian cycles, to appear in European Journal of Combinatorics.
11. A. P. Burger, J. P. de Wet, M. Frick, N. Van Cleemput, C. T. Zamfirescu, Planar Hypohamiltonian Oriented Graphs, to appear in Journal of Graph Theory.
12. K. Coolsaet, P. Goetschalckx, N. Van Cleemput, Local Orientation-Preserving Symmetry Preserving Operations on Polyhedra, Discrete Mathematics, 344(1), 2021 (DOI).
13. P. Goetschalckx, N. Van Cleemput, K. Coolsaet, Generation of Local Symmetry-Preserving Operations on Polyhedra, Ars Mathematica Contemporanea 18 (2), 2020, pp. 223-239 (link/DOI).
14. A. Bradford, J. K. Day, L. Hutchinson, B. Kaperick, C. E. Larson, M. Mills, D. Muncy, N. Van Cleemput, Automated Conjecturing II: Chomp and Reasoned Game Play, Journal of Artificial Intelligence Research (JAIR) 68, 2020, pp. 447-461 (DOI).
15. O.-H. S. Lo, J. M. Schmidt, N. Van Cleemput, C. T. Zamfirescu, Shortness Coefficient of Cyclically 4-Edge-Connected Cubic Graphs, The Electronic Journal of Combinatorics 27, Iss. 1 (2020) Article Number P1.43.
16. N. Vandersickel, E. Van Nieuwenhuyse, N. Van Cleemput, J. Goedgebeur, M. El Haddad, J. De Neve, A. Demolder, T. Strisciuglio, M. Duytschaever and A.V. Panfilov, Directed Networks as a Novel Way to Describe and Analyze Cardiac Excitation: Directed Graph Mapping, Frontiers in Physiology, 10:1138, 14 pages, 2019 (DOI).
17. J. Goedgebeur, K. Ozeki, N. Van Cleemput, G. Wiener, On the minimum leaf number of cubic graphs, Discrete Mathematics, 342(11):3000-3005, 2019 (arXiv | DOI).
18. N. Van Cleemput, Hamiltonian-connectedness of triangulations with few separating triangles, Contributions to Discrete Mathematics, 14 (1), 2019, pp. 71-79 (link | DOI).
19. G. Brinkmann, K. Ozeki, N. Van Cleemput, Types of triangle in plane Hamiltonian triangulations and applications to domination and k-walks, Ars Mathematica Contemporanea 17(1), 2019, pp. 51-66 (link).
20. N. Van Cleemput, C. T. Zamfirescu, Regular Non-Hamiltonian Polyhedral Graphs, Applied Mathematics and Computation, 338, 2018, pp. 192-206 (DOI).
21. K. Ozeki, N. Van Cleemput, C. T. Zamfirescu, Hamiltonian properties in plane graphs with few 3-cuts - a survey, Discrete Mathematics 341 (9), 2018, pp. 2646-2660 (DOI).
22. L. Hutchinson, V. Kamat, C. E. Larson, S. Mehta, D. Muncy, and N. Van Cleemput, Automated Conjecturing VI: Domination Number of Benzenoids, MATCH Commun. Math. Comput. Chem., 80(3), 2018, pp. 821-834 (link).
23. G. Brinkmann, J. Souffriau, N. Van Cleemput, On the number of hamiltonian cycles in triangulations with few separating triangles, Journal of Graph Theory 87 (2), 2018, pp. 164-175 (DOI).
24. C.E. Larson, N. Van Cleemput, Automated Conjecturing I: Fajtlowicz's Dalmatian Heuristic Revisited (Extended Abstract), Proceedings of the 2017 International Joint Conference on Artificial Intelligence (IJCAI-17), Melbourne.
25. C.E. Larson, N. Van Cleemput, Automated Conjecturing III: Property-relations conjectures, Annals of Mathematics and Artificial Intelligence, 81 (3), 2017, pp. 315-327 (DOI).
26. N. Bašić, G. Brinkmann, P.W. Fowler, T. Pisanski, N. Van Cleemput, Sizes of Pentagonal Clusters in Fullerenes, Journal of Mathematical Chemistry 55 (8), 2017, pp. 1669-1682 (DOI).
27. G. Brinkmann, J. Souffriau, N. Van Cleemput, On the strongest form of a theorem of Whitney for hamiltonian cycles in plane triangulations, Journal of Graph Theory 83 (1), 2016, pp. 78-91 (DOI).
28. C.E. Larson, N. Van Cleemput, Automated Conjecturing I: Fajtlowicz's Dalmatian Heuristic Revisited, Artificial Intelligence 231, 2016, pp. 17-38.
29. T. Kaiser, M. Saumell, N. Van Cleemput, 10-Gabriel graphs are Hamiltonian, Information Processing Letters 115, 2015, pp. 877-881 (DOI).
30. G. Brinkmann, C.E. Larson, J. Souffriau, N. Van Cleemput, Construction of planar 4-connected triangulations, Ars Mathematica Contemporanea 9 (2), 2015, pp. 145-159 (link).
31. I. Althöfer, J.K. Haugland, K. Scherer, F. Schneider, N. Van Cleemput, Alternating Plane Graphs, Ars Mathematica Contemporanea 8 (2), 2015, pp. 337-363 (link).
32. Y. Akama, N. Van Cleemput, Spherical tilings by congruent quadrangles: Forbidden cases and substructures, Ars Mathematica Contemporanea 8 (2), 2015, pp. 297-318 (link).
33. G. Brinkmann, J. Goedgebeur, N. Van Cleemput, The history of the generation of cubic graphs, International Journal of Chemical Modeling, 5(2-3), 2013, pp. 67-89.
34. C.E. Larson, N. Van Cleemput, Forcing independence, Croat. Chem. Acta 86 (4), 2013, pp. 469-475 (DOI), (link) or (direct link)
35. G. Brinkmann, N. Van Cleemput, T.Pisanski, Generation of various classes of trivalent graphs, Theoretical Computer Science 502, 2013, pp. 16-29 (DOI).
36. G. Brinkmann, N. Van Cleemput, Classification and Generation of Nanocones, Discrete Applied Mathematics 159 (15), 2011, pp. 1528-1539.
37. G. Brinkmann, O. Delgado Friedrichs, S. Lisken, A. Peeters, N. Van Cleemput, CaGe - a Virtual Environment for Studying Some Special Classes of Plane Graphs - an Update, MATCH Commun. Math. Comput. Chem., 63(3), 2010, pp. 533-552 (link).
38. G. Brinkmann, O. Delgado-Friedrichs, E.C. Kirby, N. Van Cleemput, A Catalogue of Periodic Fully-Resonant Azulene-Transitive Azulenoid Tilings Analogous to Clar Structures, Croat. Chem. Acta 82 (4), 2009, pp. 781-789 (link) or (direct link)
39. A. Peeters, K. Coolsaet, G. Brinkmann, N. Van Cleemput, V. Fack, GrInvIn in a Nutshell, Journal of Mathematical Chemistry 45, 2009, pp. 471-477 (DOI)

Talks

• Educational innovation day of Ghent University (Ghent, Belgium, 10/05/2007) (Dutch): Abstract/Slides
• 6th Cologne-Twente Workshop on Graphs and Combinatorial Optimization (Enschede, Netherlands, 29-31/05/2007): Plenary talk with Gunnar Brinkmann: Abstract/Slides
• MATH / CHEM / COMP (Verbania, Italy, 10-13/06/2008): Toroidal Azulenoids: Abstract/Slides
• (Informal) Workshop on Structural and Computational Graph Theory (Ghent, Belgium, 20/06/2008): Toroidal Azulenoids: Abstract/Slides
• Colloquium on Combinatorics (Magdeburg, Germany, 13-14/11/2008): Toroidal Azulenoids: Abstract/Slides
• 8th Cologne-Twente Workshop on Graphs and Combinatorial Optimization (Paris, France, 02-04/06/2009): Nanocones: A classification result in chemistry: Abstract/Slides
• MATH / CHEM / COMP (Dubrovnik, Croatia, 08-13/06/2009): Nanocones: A classification result in chemistry: Abstract/Slides
• Colloquium on Combinatorics (Magdeburg, Germany, 13-14/11/2009): Nanocones: A classification result in chemistry: Abstract/Slides
• MATH / CHEM / COMP (Dubrovnik, Croatia, 07-12/06/2010): CaGe: A virtual environment for studying some special classes of plane graphs: Abstract/Slides
• 8th French Combinatorial Conference (Orsay, France, 28/06/2010 - 02/07/2010): Generation of generalized 3-regular graphs: Abstract/Slides
• Computers in Scientific Discovery 5 (Sheffield, UK, 20-23/07/2010): Generation of generalized 3-regular graphs: Abstract/Slides
• Colloquium on Combinatorics (Saarbrücken, Germany, 11-13/11/2010): Generation of generalized 3-regular graphs: Abstract/Slides
• CanaDAM (Victoria, Canada, 31/05/2011-03/06/2011): CaGe: A virtual environment for studying some special classes of plane graphs: Abstract/Slides
• Informal mini-workshop (Ghent, Belgium, 08/09/2011): Generation of Delaney-Dress symbols: Slides
• Colloquium on Combinatorics (Magdeburg, Germany, 11-12/11/2011): Generation of Delaney-Dress symbols: Abstract/Slides
• ICCAM 2012 - International Congress on Computational and Applied Mathematics (Ghent, Belgium, 09-13/07/2012): Nanocones: A classification result in chemistry: Abstract/Slides
• Computers in Scientific Discovery 6 (Portoroz, Slovenia, 21-25/08/2012): Generation of Delaney-Dress symbols: Abstract/Slides
• Informal workshop (Ghent, Belgium, 30-31/08/2012): Spherical tilings by congruent quadrangles (black board presentation)
• PhD defense (Ghent, Belgium, 21/09/2012): Slides
• Colloquium on Combinatorics (Berlin, Germany, 16-17/11/2012): Spherical tilings by congruent quadrangles: Abstract/Slides
• CanaDAM (St.-John's, Canada, 10/06/2013-13/06/2013): Spherical tilings by congruent quadrangles: Abstract/Slides
• GraphDay@ULB (Brussels, Belgium, 02/10/2013): Hamiltonian cycles in triangulations: Abstract/Slides
• Graph theory seminar (Pilsen, Czech Republic, 19/11/2013): Hamiltonian cycles in triangulations: Slides
• Graph theory seminar (Pilsen, Czech Republic, 25/02/2014): Structure generation: Slides
• ICGT 2014 (Grenoble, France, 30/06/2014 - 04/07/2014): On the strongest form of a theorem of Whitney for hamiltonian cycles in plane triangulations: Slides
• VCU Discrete Mathematics Seminar (Richmond, USA, 02/09/2014): On the strongest form of a theorem of Whitney for hamiltonian cycles in plane triangulations: Abstract/Slides/Handouts
• VCU Discrete Mathematics Seminar (Richmond, USA, 09/09/2014): Structure generation - a case study: Abstract/Slides/Handouts
• CAAGT seminar (Ghent, Belgium, 08/12/2014): Conway's Thrackle Conjecture (black board talk)
• CAAGT seminar (Ghent, Belgium, 27/03/2015, 03/04/2015, 17/04/2015): Generation of Delaney-Dress symbols (black board talk in three parts)
• Computers in Scientific Discovery 7 (Richmond, USA, 19-23/07/2015): Classification and generation of nanocones (invited talk): Slides
• Cycles and Colourings 2015 (Novy Smokovec, Slovakia, 07-11/09/2015): On the number of hamiltonian cycles in triangulations with few separating triangles: Slides
• Colloquium on Combinatorics (Ilmenau, Germany, 6-7/11/2015): On the strongest form of a theorem of Whitney for hamiltonian cycles in plane triangulations: Abstract/Slides/Handouts
• VCU Discrete Mathematics Seminar (Richmond, USA, 05/04/2016): On the number of hamiltonian cycles in triangulations with few separating triangles: Abstract/Slides/Handouts
• Ghent Graph Theory Workshop on Longest Paths and Longest Cycles (Ghent, Belgium, 1-2/08/2016): Connections between decomposition trees of 3-connected plane triangulations and hamiltonian properties (invited talk): Slides/Handouts
• Colloquium on Combinatorics (Paderborn, Germany, 4-5/11/2016): On the number of hamiltonian cycles in triangulations with few separating triangles: Abstract/Slides/Handouts
• CAAGT seminar (Ghent, Belgium, 28/04/2017): Type-0 triangles: Slides/Handouts
• Computers in Scientific Discovery 8 (Mons, Belgium, 23-25/08/2017): Non-hamiltonian and non-traceable regular 3-connected planar graphs: Abstract/Slides/Handouts
• Colloquium on Combinatorics (Paderborn, Germany, 24-25/11/2017): Non-hamiltonian and non-traceable regular 3-connected planar graphs: Abstract/Slides/Handouts
• Bucharest Graph Theory Workshop 2018 (Bucharest, Roumania, 15-17/08/2018): Non-hamiltonian and non-traceable regular 3-connected planar graphs (invited talk): Abstract/Slides/Handouts
• Colloquium on Combinatorics (Paderborn, Germany, 23-24/11/2018): Shortness coefficient of cyclically 4-edge-connected cubic graphs: Abstract/Slides/Handouts
• 10th Workshop on the Matthews-Sumner Conjecture and related Problems (Pilsen, Czech Republic, 14-19/04/2019): Shortness coefficient of cyclically 4-edge-connected cubic graphs: Abstract/Slides/Handouts
• Colloquium on Combinatorics (Paderborn, Germany, 20-21/11/2019): 4-connected polyhedra have at least a linear number of hamiltonian cycles: Abstract/Slides/Handouts
• CAAGT seminar (Ghent, Belgium, 28/10/2019): Hamiltonian cycles and 1-factors in 5-regular graphs (black board talk)
• CAAGT seminar (Ghent, Belgium, 17/01/2020): 10-Gabriel graphs are hamiltonian (black board talk)

Posters

• Educational innovation day of Ghent University (10/05/2007) (Dutch): Poster
• 9th PhD Symposium FirW (04/12/2008): Abstract/Poster
• Educational innovation day of Ghent University (16/11/2009) (Dutch): Poster

Attended conferences

• JavaPolis 2007 (Antwerp, Belgium, 12-14/12/2007)
• Devoxx 2008 (Antwerp, Belgium, 10-12/12/2008)
• FOSDEM 2009 (Brussels, Belgium, 7-8/02/2009)
• 5th meeting of the IAMC (Dubrovnik, Croatia, 13-16/06/2009)
• Devoxx 2009 (Antwerp, Belgium, 18-20/11/2009)
• FOSDEM 2010 (Brussels, Belgium, 6-7/02/2010)
• 6th meeting of the IAMC (Dubrovnik, Croatia, 5-6/06/2010)
• FOSDEM 2011 (Brussels, Belgium, 5-6/02/2011)
• FOSDEM 2012 (Brussels, Belgium, 4-5/02/2012)
• FOSDEM 2013 (Brussels, Belgium, 2-3/02/2013)
• GraphDay@Mons (Mons, Belgium, 5/03/2013)
• Winter school on Algorithm Design (Beroun, Czech Republic, 12/12/2013 - 15/12/2013)
• Mathematics in Chemistry meeting (Leipzig, Germany, 26/10/2016 - 28/10/2016)
• 9th Workshop on the Matthews-Sumner Conjecture and related Problems (Pilsen, Czech Republic, 09/04/2017 - 14/04/2017)

Organised conferences

• Ghent Graph Theory Workshop on Structure and Algorithms 2017 (together with Jan Goedgebeur and Carol T. Zamfirescu) (Ghent, Belgium, 16/08/2017 - 18/08/2017)
• Ghent Graph Theory Workshop on Structure and Algorithms 2019 (together with Jan Goedgebeur and Carol T. Zamfirescu) (Ghent, Belgium, 12/08/2019 - 14/08/2019)

Research visits

• visit to VCU to work with Craig Larson (Richmond, VA, United States, 22/08/2014 - 15/09/2014)
• visit to UCLA to work with Stan Schein (Los Angeles, CA, United States, 23/01/2016 - 05/02/2016)
• visit to VCU to work with Craig Larson (Richmond, VA, United States, 25/03/2016 - 15/03/2016)
• visit to UCLA to work with Stan Schein (Los Angeles, CA, United States, 19/01/2017 - 27/01/2017)
• visit to VCU to work with Craig Larson (Richmond, VA, United States, 03/09/2017 - 14/09/2017)
• visit to UCLA to work with Stan Schein (Los Angeles, CA, United States, 05/04/2018 - 18/04/2018)
• Salt Rock workshop to work on planar hypohamiltonian oriented graphs (Salt Rock, South-Africa, 26/01/2019 - 05/02/2019)
• visit to GERAD to work with Gilles Caporossi and Eglantine Camby (Montréal, Canada, 19/08/2019 - 25/08/2019)

Software

Contributions