Invited keynote speaker on "Collective Decision Making: The Best-of-n Problem in Robot Swarms" at "Swarm Intelligence in AI and Alife workshop at SWARM 2019", Okinawa, Japan, November 22, 2019.

Invited plenary speaker on "Mergeable Nervous Systems and Blockchain-based Smart Contracts for Robot Swarms" at "SWARM 2019: The 3rd International Symposium on Swarm Behavior and Bio-Inspired Robotics", Okinawa, Japan, November 22, 2019.

Invited speaker on "Swarm Robotics: Recent Results and New Research Directions" at "19th EPIA Conference on Artificial Intelligence", Vila Real, Portugal, September 3-6, 2019.

Invited speaker on "Coordination in Robot Swarms" at "PAAMS 19 - 17th International Conference on Practical Applications of Agents and Multi-Agent Systems", Ávila, Spain, June 28, 2019.

Invited speaker on "Controlling Robot Swarms" at "LION13 - Learning and Intelligent OptimizatioN", Chania, Crete, Greece, May 27-31, 2019.

Invited speaker on "Swarm Robotics: Recent Results and New Research Directions" at Centro de Estudios Avanzados, Santiago, Chile, March 8, 2019.

Invited speaker on "Swarm Intelligence Research at IRIDIA AI lab" at Pontificia Universidad Catolica de Valparaiso, Valparaiso, Chile, March 7, 2019.

Invited speaker on "Swarm Robotics: Recent Results and New Research Directions" at Lund University, Lund, Sweden, January 24, 2019.

Invited speaker on "Swarm Intelligence" at "Wissenschaftliches Symposium zu den Anfängen, der Gegenwart und der Zukunft der KI-Forschung anlässlich des 80. Geburtstages von Prof. Dr. Wolfgang Bibel", Darmstadt, Germany, November 23, 2018.

Invited speaker on "Swarm Robotics: Recent Results and New Research Directions" at "Second Nature Conference on Flexible Electronics", Xi'an, China, October 13, 2018.

Tutorial speaker on "An Introduction to Swarm Intelligence" at "Summer school on Complex Networks and Telecommunications", Como Italy, July 19, 2018.

Invited speaker on "Swarm Robotics" at the conference "Biological Transformation in Manufacturing - Futuras in Res", Fraunhofer, Berlin, Germany, June 29, 2018.

Invited speaker on "Swarm Robotics Research at IRIDIA" at the ULB-WASEDA workshop on "Man and biosphere", Brussels, Belgium, June 21, 2018.

Invited speaker on "Beyond Pure Self-organization in Robot Swarms" at the conference "Conference on Collective Behavior", Trieste, Italy, May 7, 2018.

Invited keynote speaker on "Swarm robotics: Current Issues and Some Novel Research Directions" at the workshop "Cross-disciplinary approaches for building intelligent swarms of drones", Toulouse, France, November 13, 2017.

Invited keynote speaker on "Swarm Robotics: Current Research Directions at IRIDIA" at the workshop "Belgian Dutch Conference on Artificial Intelligence (BNAIC)", Groningen, The Netherlands, November 9, 2017.

Invited keynote speaker on "Collective Decision Making: The Best-of-n Problem in Robot Swarms" at "IEEE SASO 2016 -- 10th IEEE International Conference on Self-Adaptive and Self-Organizing Systems", Augsburg, Germany, September 13, 2016.

Invited keynote speaker on "Swarm robotics: Current Issues and Some Novel Research Directions" at "IEEE WCCI 2016 -- IEEE World Congress on Computational Intelligence", Vancouver, Canada, July 27, 2016.

Invited speaker on "New Ideas for Designing and Implementing Robot Swarms" at "Max Planck Institute for Intelligent Systems", Stuttgart, Germany, June 8, 2016.

Invited speaker on "La cooperazione in sciami di robot" at "Darwin Day 2016", Parma, Italy, March 11, 2016.

Plenary speaker on "Controlling Swarms of Cooperating Robots" at "IEEE SSCI 2015 -- IEEE Symposium Series on Computational Intelligence", Cape Town, South Africa, December 7-10, 2015.

Tutorial speaker on "A Gentle Introduction to Swarm Intelligence" at "SWARM 2015 -- The First International Symposium on Swarm Behaviour and Bio-Inspired Robotics", Kyoto, Japan, October 28-30, 2015.

Invited speaker on "Controlling Swarms of Cooperating Robots" at "WIVACE 2015 -- Italian Workshop on Artificial Life and Evolutionary Computation", Bari, Italy, September 23, 2015.

Invited keynote speaker on "Swarm Robotics Research at IRIDIA" at "TAROS 2015 -- Towards Autonomous Robotic Systems", Liverpool, UK, September 9, 2015.

Invited speaker on "Swarm Robotics Research at IRIDIA" at the Department of Computer Science, University of Pretoria, South Africa, April 20, 2015.

Invited keynote speaker on "Swarm Intelligence in the Natural and Artificial Worlds" at "ASCENS Spring School on Engineering Collective Autonomic Systems", Lucca, Italy, March 26, 2015.

Invited speaker on "Swarm Robotics" at "Giornata Scientifica in Memoria di Alberto Bertoni", Università degli Studi di Milano, Italy, February 13, 2015.

Invited keynote speaker on "Swarm-bots and Swarmanoid" at "The 3rd International Conference on the Theory and Practice of Natural Computing (TPNC 2014)", Granada, Spain, December 9, 2014.

Tutorial speaker on "Self-organizing Swarms" at "16th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS 2014)", Paderborn, Germany, September 28, 2014.

Invited keynote speaker on "Swarm-bots and Swarmanoid" at "EUROMICRO DSD/SEAA 2014", Verona, Italy, August 28, 2014.

Invited keynote speaker on "The Swarm-bots and Swarmanoid Experiments in Swarm Robotics" at "IEEE International Conference on Autonomous Robot Systems and Competitions (IEEE ICARSC)", Espinho, Portugal, May 14-15, 2014.

Invited speaker on "About Swarm Intelligence and Swarm Robotics" at "I'm seeing in the Brain", Alumni Ecole Polytechnique de Bruxelles, Université libre de Bruxelles, Brussels, April 30, 2014.

Invited speaker on "Swarm Intelligence in the Natural and Artificial Worlds" at "BIOCITIES lecture series", The Bartlett School of Architecture, University College London, February 21, 2014.

Invited keynote speaker on "Swarm-bots and Swarmanoid" at "1st BRICS Countries Congress (BRICS-CCI) and 11th Brazilian Congress (CBIC) on Computational Intelligence", Recife, Brazil, September 11, 2013.

Tutorial speaker on "An Introduction to Swarm Intelligence" at "School of Computational Intelligence", Recife, Brazil, September 8, 2013.

Invited keynote speaker on "Swarmanoid Robots" at "Istanbul Technical University Robotics Olympics -- ITURO 2013", Istanbul, Turkey, April 12, 2013.

Invited keynote speaker on "Swarm Intelligence" at "6th IEEE, International Conference on Intelligent Systems", Sofia, Bulgaria, September 8, 2012.

Invited keynote speaker on "Swarm Robotics" at "Unconventional Computation and Natural Computation 2012", University of Orleans, France, September 6, 2012.

Whitehead Lecture on "Swarm-bots and Swarmanoid: Two Experiments in Embodied Swarm Intelligence", series in Cognition, Computation and Creativity at Goldmiths College, University of London, UK, March 14, 2012.

Invited speaker on "Swarm-bots and Swarmanoid: Two Experiments in Swarm Robotics" at "2011 IEEE/SICE International Symposium on System Integration, SII2011", Kyoto University, Japan, December 20-22, 2011.

Invited speaker on "Swarm Intelligence" at North Rhine-Westphalia Academy for Sciences and Arts, Düsseldorf, Germany, November 16, 2011.

Invited speaker on "Intelligenza di sciame e robotica" a the "Festival della Scienza di Genova", Italy, October 30, 2011.

Invited speaker on "A Gentle Introduction to Swarm Intelligence" a the "IRIBHM Interdisciplinary Biomedical Research Seminars", ULB, Brussels, Belgium, September 29, 2011.

Invited speaker on "Swarm robotics: l'intelligenza degli insetti sociali applicata al controllo di gruppi di robot" at the ICT Institute, Politecnico di Milano, April 19, 2011.

Invited speaker on "Swarm Intelligence and Swarm Robotics" at the ERG Séminaire, Brussels, Belgium, February 4, 2011.

Invited speaker on "Embodied Swarm Intelligence" at the European Research Council, Brussels, Belgium, January 28, 2011.

"Neujahrempfang" lecturer on "Swarm Intelligence" at Universität Paderborn, Germany, January 16, 2011.

Simon Stevin Lecture on "Swarm Intelligence" at KUL, Leuven, Belgium, December 16, 2010.

Invited speaker on "Sociétés de robots" at Espace Delvaux, Centre culturel de Watermael-Boitsfort, Brussels, Belgium, December 6, 2010.

Invited speaker on "Embodied Swarm Intelligence" at Center for Advanced Studies, Ludwig-Maximilians-Universität, Munich, Germany, October 11, 2010.

Invited speaker on "Swarm Intelligence in the Natural and Artificial Worlds" at "Studium Generale", Maastricht University, The Netherlands, March 15, 2010.

Invited speaker on "Des fourmis et des robots" at "Foire du livre, Forum Le Soir", Brussels, Belgium, March 8, 2010.

Invited keynote speaker on "Swarms of Physically Cooperating Robots" at "Congress of the Italian Association for Artificial Intelligence", Reggio Emilia, Italy, December 10, 2009.

Invited keynote speaker on "From Social Insects to Swarms of Robots: The Swarm-bots Experiment" at "Inside", Lisbon, Portugal, November 7, 2009.

Invited keynote speaker on "Swarm Robotics" at "Modelling Cognitive Behaviour - 2009", Bristol, UK, November 5, 2009.

Invited keynote speaker on "Swarms of Cooperating Robots" at "ICAIS'09 - International Conference on Adaptive and Intelligent Systems", Klagenfurt, Austria, September 26, 2009.

Invited keynote speaker on "Swarm-bots and Swarmanoid: Two Experiments in Embodied Swarm Intelligence" at the "2009 IEEE/WIC/ACM International, Conference on Intelligent Agent Technology (IAT 2009) and 2009 IEEE/WIC/ACM International Conference on Web Intelligence (WI 2009)", Milano, Italy, September 17, 2009.

Invited keynote speaker on "Embodied Swarm Intelligence: The Swarm-bot and the Swarmanoid Experiments" at "ICANN 2009 - The 19th International Conference on Artificial Neural Networks", Limassol, Cyprus, September 15, 2009.

Invited keynote speaker on "Swarm Intelligence, Swarm-bots and Swarmanoids" at "ICCSA 2009, The 3rd International Conference on Complex Systems and Applications", University of Le Havre, France, June 29, 2009.

Invited keynote speaker on "A Study of Morphogenesys Using the Swarm-bot Robotic Platform" at "MEW2009 - First International Workshop on Morphogenetic Engineering", Complex Systems Institute, Paris, France, June 19, 2009.

Invited plenary speaker on "About Swarm Intelligence and Swarm-bots" at "Biowire09 - From Self-Organisation in Living Systems to Sensor and Wireless Networks", Cambridge, UK, June 11, 2009.

Invited keynote speaker "Swarm-bot: An Experiment in Embodied Swarm Intelligence" at the "Informatikkolloquium", Universität Paderborn, Germany, May 5, 2009.

Invited keynote speaker on "Swarm-bots and Swarmanoids" at "EURON, European Robotics Research Network Annual Meeting", Leuven, Belgium, April 7, 2009.

Invited speaker on "The Swarm-bot Experience in Swarm Robotics" at "Seminar series of Systems and Control", Université Catholique de Louvain, Belgium, March 31, 2009.

Tutorial speaker on "An Introduction to Swarm Intelligence" at the "2nd International Seminar on New Issues in Artificial Intelligence", Universidad Carlos III de Madrid, Spain, February 6, 2009.

Invited keynote speaker on "Swarm-bots" at "ICAART 2009 - International Conference on Agents and Artificial Intelligence", Porto, Portugal, January 20, 2009.

Invited plenary speaker on "Swarm Intelligence and Swarm-bots" at "Celebration for the 20 years of the Istituto Dalle Molle di studi sull'intelligenza artificiale -- IDSIA", Palazzo dei Congressi, Lugano, Switzerland, October 24, 2008.

Invited plenary speaker on "Swarm Robotics: The Coordination of Robots via Swarm Intelligence Principles" at "BICC 2008 - 2nd IFIP Conference on Biologically Inspired Collaborative Computing", Milano, Italy, September 8, 2008.

Invited plenary speaker on "The Swarm-bot: A Swarm of Self-assembling Robots" at "IPMU 2008 - 12th International Conference Information Processing and Management of Uncertainty for Knowledge-Based Systems", Malaga, Spain, June 26, 2008.

Invited plenary speaker on "Swarm Intelligence and Swarm Robotics: The Swarm-bot Experiment" at "ICINCO 2008 - International Conference on Informatics in Control, Automation and Robotics", Funchal, Madeira, Portugal, May 12, 2008.

Invited plenary speaker on "Swarm Robotics: The Application of Swarm Intelligence Principles to the Control of Swarms of Robots " at " BIONETICS 2007 - 2nd International Conference on Bio-Inspired Models of Network, Information, and Computing Systems", Budapest, Hungary, December 10, 2007.

Invited plenary speaker on "Swarm-bots: An Experiment in Swarm Robotics" at "NICSO 2007 - Second International Workshop on Nature Inspired Cooperative Strategies for Optimization", Acireale (Catania), Italy, November 8, 2007.

Invited plenary speaker on "Swarms of Self-assembling Robots" at the "International Conference on Complex Systems-Engineering Environment-Mediated Multiagent Systems", Dresden, Germany, October 5, 2007.

Tutorial speaker on "Swarm Intelligence with Applications in Optimization and Robotics" at "DECOI2007-International Summer School on Collective Intelligence and Evolution", Amsterdam, The Netherlands, August 20, 2007.

Invited speaker on "Swarm-bots: Swarms of Self-assembling Robots" at the "Summer research institute-EPFL", Lausanne, Switzerland, July 3, 2007.

Invited plenary speaker on "Swarm-bots: Swarms of Self-assembling Robots" at the "International Symposium on Innovations in Intelligent Systems and Applications-INISTA 2007", Istanbul, Turkey, June 21, 2007.

Invited speaker on "The Swarm-bot Experiment in Swarm Robotics" at the University of Amsterdam, Amsterdam, The Netherlands, November 20, 2006.

Invited speaker on "Swarm Intelligence and its Use in Swarm Robotics" at the "Advanced Concepts Team Seminars", European Space Agency, Noordwijk, The Netherlands, November 17, 2006.

Invited plenary speaker on "An Experiment in Swarm Robotics: The Swarm-bot" at the "2nd International Workshop on Swarm Robotics", Rome, Italy, September 30, 2006.

Tutorial speaker on "Ant Colony Optimization" at the "6th Metaheuristics International Conference ", Vienna, Austria, August 24, 2005.

Invited plenary speaker on "Swarms of Self-assembling Robots" at the "IEEE World Congress on Computational Intelligence", Vancouver, Canada, July 18, 2006.

Invited plenary speech on "The Ant Colony Optimization Metaheuristic" at the "3rd International Conference on Pedestrian and Evacuation Dynamics", Vienna, Austria, September 30, 2005.

Tutorial speaker on "Fundamentals and Applications of Ant Colony Optimization" at the "IEEE Swarm Intelligence Symposium", Pasadena, California, June 8, 2005.

Invited speech on "Swarm intelligence: State-of-the-art and Future Challenges" at the "Future and Emerging Technologies Unit of the European Commission", Brussels, Belgium, May 23, 2005.

Invited speech on "Swarm-bot: A Novel Type of Self-assembling Robot" at the "Workshop on Cooperative Robotics - International Conference on Robotics and Automation", Barcelona, Spain, April 22, 2005.

Invited speech on "Artificial Ants Solve Network Optimization Problems" at the Barcelona Science Museum, Barcelona, Spain, February 23, 2005.

Invited speaker at the "Optimization 2004" conference, Lisbon, Portugal, July 28, 2004.

Tutorial speaker on "Ant Colony Optimization and Swarm Intelligence: An Introduction" at the "Fourth International Workshop on Ant Colony Optimization and Swarm Intelligence (ANTS 2004)," Brussels, Belgium, September 5, 2004.

Invited speaker at the "Research cluster on complex systems", Imperial College London, UK, April 1, 2004.

Tutorial speaker on "An Introduction to Ant Colony Optimization and Swarm Intelligence" at the "Eight International Conference on Parallel Problem Solving From Nature (PPSN VIII)," Birmingham, UK, Septemer 19, 2004.

Invited speaker at the "Open Systems Conference", Rotterdam, The Netherlands, November 27, 2003.

Invited speaker at the "Research cluster on swarm intelligence", Sheffield, UK, November 11, 2003.

Invited speaker at the "Second International Conference on Evolutionary Multi-Criterion Optimization (EMO 2003)" and "First IFAC International Conference on Intelligent Control and Signal Processing (ICONS 2003)", Faro, Portugal, April 10, 2003.

Invited speaker at the "Third International Workshop on Engineering Societies in the Agents World" at Universidad Rey Juan Carlos, Madrid, Spain, Sep 16, 2002.

Tutorial speaker on "An Introduction to Ant Algorithms and Swarm Intelligence" at the "European Conference on Artificial Intelligence (ECAI 2002)," Lyon, France (Jul 22, 2002).

Invited speaker at the two-day seminar on "Collective Intelligence" at University of Fribourg, Switzerland, Feb 25, 2002.

Invited speaker at the FNRS workshop on "Métaheuristiques et traitement de problèmes combinatoires" at Université Libre de Bruxelles, Belgium, Feb 7, 2002.

Invited speaker (by the Portuguese Minister for Science and Technology) on "Social Intelligence: From Natural to Artificial Systems" within the series of conferences titled "Positions of knowledge: some critical thresholds", Jan 25, 2002, Lisbon, Portugal.

Invited speaker at the "6th European Conference on Artificial Life", Prague, Czech Republic, Sep 10-14, 2001.

Tutorial speaker on "Ant Colony Optimization" at the "EvoNet Summer School", Thessaloniki, Greece (Aug 27 - Sep 1, 2001).

Tutorial speaker on "Ant Algorithms and Swarm Intelligence" at "IJCAI-01 - Seventeenth International Joint Conference on Artificial Intelligence", Seattle, WA, USA (Aug 6, 2001).

Tutorial speaker on "Ant Colony Optimization and Swarm Intelligence" at the "Santa Fe Complex Systems Summer School", Budapest, Hungary (Jul 25, 2001).

Invited speaker at the "Tenth Turkish Symposium on Artificial Intelligence and Neural Networks", Famagusta, North Cyprus, Jun 21-22, 2001.

Invited speaker at "ETAPS 2001 - MMAABS: Workshop on Models and Methods of Analysis for Agent Based Systems", Genova, Italy, Apr 2-6, 2001.

Tutorial speaker on "An Introduction to Ant Algorithms" at the "Joint tutorials of SAB 2000 and PPSN 2000," Paris, France (Sep 17, 2000).

Tutorial speaker on "Ant Algorithms and Swarm Intelligence: An Introduction" at the "European Conference on Artificial Intelligence (ECAI 2000)," Berlin, Germany (Aug 21, 2000).

Tutorial speaker on "Ant Algorithms" at the "2000 Genetic and Evolutionary Computation Conference (GECCO-2000)," Las Vegas, NV, USA (Jul 9, 2000).

Invited speaker at the "Fourth International Conference on Autonomous Agents (Agents 2000)", Barcelona, Spain, June 3-7, 2000.

Invited speaker at the "7èmes Journées Francophones d'Intelligence Artificielle et Systèmes Multi-Agents (JFIADSMA'99)," Saint-Gilles, Ile de la Réunion, France, Nov 8-10, 1999.

Tutorial speaker on "An Introduction to Ant Algorithms" at the "9th Belgian-Dutch Conference on Machine Learning (BENELEARN-99)," Maastricht, The Netherlands (Nov 5, 1999).

Invited speaker at the "First USA-Italy Conference on Applied Neural and Cognitive Sciences," Boston, MA, Oct 4, 1999.

Tutorial speaker on "An Introduction to Ant Algorithms" at the "5th European Conference On Artificial Life (ECAL99)," Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland (Sep 13, 1999).

Tutorial speaker on "Introduction to Ant Colony Optimization" at the "1999 Genetic and Evolutionary Computation Conference (GECCO-99)," Orlando, FL, USA (Jul 14, 1999).

Tutorial speaker on "Artificial Life: The Swarm Intelligence Approach" at the "IEEE 1999 International Congress On Evolutionary Computation," Washington D.C., USA (Jul 6, 1999).

Tutorial speaker at the "Artificial Intelligence and Beyond" course, organized by the Flanders Language Valley Education and K.U. Leuven Campus Kortrijk, Belgium (Apr 14, 1999).

Tutorial speaker on "Ant Colony Optimization" at the "Fifth International Conference on Parallel Problem Solving From Nature (PPSN V)," Amsterdam, The Netherlands (Sep 27, 1998).

Tutorial speaker on "Ant Colony Optimization" at the "Third Annual Genetic Programming Conference (GP-98)," Madison, WI, USA (Jul 22-25, 1998).

Invited key-note speaker at "Real World Intelligence joint WG meeting", AIST Hall, Tsukuba, Japan, Mar 4, 1998.

Invited plenary talk at "IEE Colloquium on Self-Learning Robots II: Bio-Robotics", Savoy Place, London, UK, Feb 12, 1998.

Invited talk at "NSF Workshop on Reinforcement Learning", Hilltop House, Harper's Ferry, MD, USA, Apr 12-14, 1996.

Invited plenary talk at "IEE Colloquium on Self-learning robots", Savoy Place, London, UK, Feb 12, 1996.

Invited plenary talk at "BENELEARN-95, 5th Belgian-Dutch Conference on Machine Learning," Université Libre de Bruxelles, Belgium, Sep 15, 1995.

Invited talk at "SFI Working Group on Learning and Adaptation in Robots and Situated Agents", Santa Fe Institute, NM, May 9-13, 1993.