1. “Discrete-Event Modeling and Simulation Methodologies: Past, Present and Future”. Keynote presentation at 15th International Conference on Computer Modeling and Simulation. Dalian, China. 2023.

2. “Discrete-Event Specifications for Experimentation and Analysis: using Digital Quadruplets for building automation”. Keynote presentation - EUROSIM 2023, Amsterdam, The Netherlands. 2023.

3. “Discrete-Event Modeling and Simulation Methodologies: Past, Present and Future”. Keynote presentation at the IEEE/ACM International Symposium on Distributed Simulation and Real Time Applications DS-RT. Alès, France. 2022.

4. “Cellular Models in Buildings to study the indoor spread of COVID-19”. 9th International Work-Conference on Bioinformatics and Biomedical Engineering. Las Palmas, Spain. 2022.

5. “Using Discrete-Event Modeling and Simulation for Development Cyber-Physical Systems”. III Workshop on Modeling and Simulation of Software-Intensive Systems (MSSiS 2021). 12th Brazilian Congress on Software (CBSoft 2021). Joinville, Brazil (virtual). 2021.

6. “Introduction to Cellular Models to study COVID-19”. Annual Conference of the Chilean Society of Computer Science (SCCC). Coquimbo, Chile. 2020.

7. “Cellular Models in Buildings to study the indoor spread of COVID-19”. China 2020 Simulation Conference. Beijing, China. 2020.

8. “Modeling and Simulation of Cellular Networks: formalizing the models”. IEEE/SCS International Symposium on Performance Evaluation of Computer and Telecommunication Systems, Madrid, Spain. 2020.

9. “Discrete-Event Modeling and Simulation for Development of Embedded and Real-Time Systems”. 27th IEEE International Symposium on the Modeling, Analysis, and Simulation of Computer and Telecommunication Systems. Rennes, France. 2019.

10. “Advances in Discrete-Event Crowd Modeling and Simulation”. EMENA-ISTL. Marrakesh, Morocco. 2019.

11. “Discrete-Event Modeling and Simulation Methodologies: Past, Present and Future”. Plenary Presentation at International Conference on Mathematical Models & Computational Techniques in Science & Engineering, London, UK. 2019.

12. “Crowd Modeling and Simulation of Spatial Systems with Cell-DEVS”. Keynote presentation at the 8th International Conference on Simulation and Modeling Methodologies, Technologies and applications. InfoNor 2018. Iquique, Chile. 2018.

13. “Simulation Everywhere”. Keynote presentation at the 13th International meeting on High Performance Computing for Computational Science, VECPAR 2018. Sao Pedro, SP, Brazil. 2018.

14. “Crowd Modeling and Simulation of Spatial Systems with Cell-DEVS”. Keynote presentation at the 8th International Conference on Simulation and Modeling Methodologies, Technologies and applications. SIMULTECH 2018, Porto, Portugal. 2018.

15. “Discrete-Event Modeling and Simulation Methodologies: Past, Present and Future”. Keynote presentation, Ninth Workshop in Simulation. Barcelona, Spain. 2018.

16. “Discrete-Event Modeling and Simulation for Development of Embedded and Real-Time Systems. Keynote presentation at the 21st IEEE/ACM International Symposium on Distributed Simulation and Real Time Applications DS-RT. Rome, Italy. 2017.

17. “Cell-DEVS: contributions and challenges. Keynote presentation at the Memorial Workshop in honour of Norbert Giambiasi. November 2017. Marseille, France.

18. “Formal Discrete-Event Modeling and Simulation of Mobile Networks”. Keynote presentation at the 14th IEEE International Conference on Networking, Sensing and Control, Calabria, Italy 2017

19. “Discrete-Event Modeling and Simulation Methodologies: Past, Present and Future”. Keynote presentation, Ph.D. Colloquium. Winter Simulation Conference. Washington, DC. 2016.

20. “Modeling and Simulating Emerging Behaviour in Spatial Systems with Cell-DEVS”. Keynote presentation, International Symposium on INnovations in Intelligent SysTems and Applications. Sinaia, Romania. 2016.

21. “Recent Advances on Discrete-Event Modeling and Simulation for Development of Embedded and Real-Time Systems”. Keynote presentation, SummerSim 2016. Montréal, QC. 2016.

22. “Introduction to Model and Simulation Interoperability with DEVS”. Plenary Talk. JIAE2015 : 8èmes Journées de l'interopérabilité des applications d'entreprise. Bordeaux, France. 2015.

23. “Cellular Modeling with Cell-DEVS: a Discrete-Event Cellular Automata formalism”. Keynote Presentation, ACRI 2014 (Cellular Automata for Research and Industry). Krakow, Poland. 2014.

24. “Applying Modelling and Simulation for Development of Embedded Systems”. Keynote presentation, ACM SIGSIM Conference on Principles of Advanced Discrete Simulation (PADS). Denver, CO. 2014.

25. “Discrete-Event Modeling and Simulation Methodologies: Applications to Wireless and Mobile Communications”. Keynote presentation, VI International Congress of Computer and Telecommunications, COMTEL 2014, Lima, Perú. 2014.

26. “A Modelling and Simulation Based Methodology for Development of Embedded Systems”. Keynote presentation, 3rd IEE International Conference on Computer Science and Network Technology, Dalian Jiaotong University, China. 2013

27. “Applying Modelling and Simulation for Development of Embedded Systems”. Keynote presentation, The 2nd IEEE Mediterranean Conference on Embedded Computing. Budva, Montenegro. 2013.

28. “Discrete-Event Modeling and Simulation Methodologies: Applications to Wireless and Mobile Communications”. Keynote presentation, 9th International Conference on Wireless Communications, Networking and Mobile Computing (WICOM). Beijing, China. 2013.

29. “Discrete event modeling and simulation: present, past, future”. Keynote presentation, XIX International Conference on Industrial Engineering and Operations Management, ICIEOM. Valladolid, Spain. 2013.

30. “Simulation Everywhere”. Keynote presentation, Ph.D. Colloquium. First ACM SIGSIM Conference on Principles of Advanced Discrete Simulation (PADS). Montréal, QC. 2013.

31. “Simulation Everywhere”. Keynote presentation, International Workshop on Modeling and Applied Simulation, WAMS 2012, Rome, Italy. 2012.

32. “Applying a model-based methodology for the development of Real-Time Embedded systems” (in Spanish). Keynote presentation, Argentinian Symposium on Software Engineering, ASSE 2012, La Plata, Argentina. 2012.

33. “Discrete event modeling and simulation: present, past, future”. Plenary talk, SimGrid meeting, Nice, France. 2011.

34. “Discrete event modeling and simulation: present, past, future”. Keynote presentation at Modeling and Simulation Symposium 2010, Mérida, Venezuela. 2010.

35. “Introduction to Parallel DEVS simulation”. Keynote presentation at HPCLatam 2009, Latin-American conference on High-Performance Computing. Mar del Plata, Argentina. 2009.

36. “Discrete event modeling and simulation: present, past, future”. Plenary Speaker at the 2009 MS&G Student Capstone Conference. VMASC. Old Dominion University. Norfolk, VA. 2009.

37. “Current and Future Trends in DEVS”. Plenary Speaker DEVS Symposium. Summer Computer Simulation Conference. San Diego, CA. 2007.

38. “Advances in DEVS Modeling and Simulation Methodologies”. Keynote Speaker at the European Conference on Modeling and Simulation, ECMS 07, Prague, Czech Republic, 2007.

39. Keynote Speaker at the 5th International Conference on Modeling, Simulation and Optimization. Oranjestad, Aruba. 2005.

40. “Modeling and simulation of complex cell spaces”. Plenary presentation at the Annual Workshop of the CNRS LSIS (Laboratoire de Sciences de l'Information et de Systèmes de Marseille). Giens, France. June 2003.

• “An Introduction to the DEVS formalism”. Mini-course. ETSII. University of Seville, Spain. 2025.
• “A DEVS-based Engine for Building Digital Quadruplets”. Invited talk. Annual Simulation Conference, Hamilton, ON. 2023
• “Defining DEVS and Real-Time DEVS Models Using DEVS-Graphs Online Environment”. C. Ruiz Martin*, G. Wainer. Tutorial, Annual Simulation Conference, Hamilton, ON. 2023
• “EDT Community Seminar Series: Panel Discussion on Engineering Digital Twins”. Panel. Amsterdam, Netherlands (virtual). 2023.
• “Discrete-Event Modeling and Simulation-based Development of Embedded Systems”. C. Ruiz Martin*, G. Wainer. Tutorial at MODELS 2022, Montréal, QC. 2022.
• “Computer Science Methods for Effective and Sustainable Simulation Studies”. Schloss Dagstuhl Seminar 22401, Saarbrücken, Germany. 2022.
• “Defining Cell-DEVS Models with the CD++/CADMIUM Online Simulation Environment”. C. Ruiz Martin*, G. Wainer. Tutorial at Winter Simulation Conference. Singapore, 2022.
• “Introduction to Cellular Models with Application to Social Studies of COVID-19”. Inaugural Virtual EUROSIM Simulation Seminar. Eurosim 2023. 2020.
• “Modeling COVID-19 Using Spatial Modeling and Simulation”. Ingenious Talks Online. Speaker Series. Faculty of Engineering and Design. Carleton University. 2020.
• “Spatial analysis in Simulation for Architecture”. Panel at Symposium on Simulation in Architecture and Urban Design (SimAUD 2020). Vienna, Austria (Virtual). 2020.
• “Modeling DEVS with Cadmium”. Tutorial at the Spring Simulation Conference. Fairfax, VA. 2020.
• “Introduction to Modeling and Simulation of Spatial Systems with Cell-DEVS”. Tutorial at the Summer Simulation Conference. Berlin, Germany. 2019.
• “Applying Modelling and Simulation for Development Embedded Systems”. Tutorial at the Summer Simulation Conference. Berlin, Germany. 2019.
• “Modeling and Simulation Education in CPS Era”. Panel at the Summer Simulation Conference. Berlin, Germany. 2019.
• “Building DEVS Models with the Cadmium Tool”. Tutorial at the Winter Simulation Conference. National Harbor. MD. 2019.
• “An Introduction to Cellular Automata Models with Cell-DEVS”. Tutorial at the Winter Simulation Conference. National Harbor. MD. 2019.
• “Spatial Systems Modelling with Cellular Discrete-Event Modeling and Simulation”. Tutorial for Summer Simulation Conference. Bordeaux, France. 2018.
• “Introduction to the DEVS Formalism”. Tutorial at the Winter Simulation Conference. Gothenburg, Sweden. 2018.
• Panel Session Speaker: “Centrality of the User In Performance Assessment for Building Simulation”. SimAUD Symposium on Simulation in Architecture and Urban Design (SimAUD 2018). Delft, The Netherlands. 2018.
• Panel Session Speaker: “Lessons learned in PhD Research for Modeling and Simulation”. PADS 2018 PhD Colloquium. 2018.
• Panel Session speaker: “50 Summers of Computer Simulation”, SCSC Golden Jubilee Panel. Bordeaux, France. 2018.
• “DEVS Modelling and Simulation for Development of Embedded Systems”. Tutorial for Winter Simulation Conference, Huntington Beach, CA. 2015.
• “Computational Fluid Dynamic Solver based on Cellular Discrete-Event Simulation for use in Biological Systems”. ACTIMS 2014 (Activity based Modeling and Simulation). ETH Zürich, Switzerland. 2014.
• “An Introduction to the DEVS formalism”. Tutorial at the Spring Simulation Conference. San Diego, CA. 2013.
• “Introduction to Modeling and Simulation of Spatial Systems with Cell-DEVS”. Workshop on Big Data and Spatial Modeling, PFC, National Resources Canada. Victoria, BC. 2013.
• “A Land Use and Land Cover Model using the Cell-DEVS formalism”. Royal Geographical Society Annual International Conference. Modelling for Policy session. London, UK. 2013.
• “A Cellular Modeling Environment For Behavior Analysis In GIS”. Agent-Based Models and Geographical Systems. Association of American Geographers Annual Meeting. New York, NY. 2012.
• Invited speaker. “The Cell-DEVS formalism”. ACTIMS 2012 (Activity based Modeling and Simulation). University Paris Est. Paris, France. 2012.
• Panel Session speaker: “Grand Challenges for Modeling and Simulation”. S. Taylor, P. Fishwick, R. Fujimoto, A. Uhrmacher, E. Page, G. Wainer. Winter Simulation Conference. Berlin, Germany. 2012.
• Tutorial: “Advanced Spatial Systems with Cellular Discrete-Event Modeling and Simulation”. G. Wainer. Winter Simulation Conference. Berlin, Germany. 2012.
• Panel Session speaker: “Future Trends in Distributed Simulation and Distributed Virtual Environments – Revisited”. PADS 2011. Nice, France.
• “DEVS Standardization: Introduction and Current Status”. Invited Workshop Presentation at Symposium on Simulation in Architecture and Urban Design (SimAUD 2011), Boston, MA.
• “Methodology for Embedded (Robotic) Software Development”. Invited Talk at Research meeting and School on Distributed Computing by Mobile Robots, Ottawa, ON. 2010.
• “An Introduction to the DEVS formalism”. Tutorial at the SCS Spring Simulation Conference. San Diego, CA. March 2009.
• “The DEVStone Benchmark: uniform methodology for Simulation Benchmarking”. Invited Talk. DEVS Symposium, SCS Spring Simulation Conference. San Diego, CA. March 2009.
• Panel Session speaker: Practices that enhance the credibility of simulations. SIMUTools 2009. Rome, Italy.
• Panel Session speaker: Large Scale Scientific Computing in Canada. HPCS, SpringSim 2008. Ottawa, ON. Canada.
• Invited to the Workshop on Systems Biology Approaches to Immune Modulation and Inflammation. CIHR Institute of Infection and Immunity. Montréal, QC. 2008.
• “Using Modeling and Simulation for testing of Embedded Real-Time Systems”. Tutorial at the 18th International Conference on Modeling and Simulation, MS 2007. Montréal, QC. Canada. May 2007.
• “Modeling and simulation of complex cell spaces”. Invited Talk, AUTOMATA 2007. The Fields Institute for Research in Mathematical Sciences, Toronto, Canada, August 27-29, 2007.
• “On the Application of a Model-Driven technique for Development and Testing of Embedded Systems”. Tutorial at Q&ATEST conference 2006, Bilbao, Spain. October 2006.
• “Modeling and Simulation of Complex Cell Spaces with Cell-DEVS”. Tutorial at the 17th International Conference on Modeling and Simulation, MS 2006. Montréal, QC. Canada. May 2006.
• “An Introduction to the DEVS formalism”. Tutorial at the SCS Spring Simulation Conference. San Diego, CA. April 2005.
• “Modeling and simulation of complex systems with Cell-DEVS”. Tutorial at the Winter Simulation Conference. Washington, DC. December 2004.
• “Using DEVS for modeling and simulation of computer networks”. Tutorial at SPECTS, Symposium on Performance on Computer and Telecommunication Systems. San Jose, CA, USA. July 2004.
• “Component-based modeling of Real-Time Systems”. Seminar 04041, Component-based Modeling and Simulation. Schloss Dagstuhl, Saarbrücken, Germany. January 2004.
• “Modeling and simulation of Real-Time systems using the DEVS formalism”. NSF Workshop on Modeling and Simulation for Design of Large Software-Intensive Systems (DLS03). Tucson, AZ. December 2003.
• “Priorities for Modeling and Simulation Standards”. Panel. SCS Summer Computer Simulation Conference. Montreal, QC. July 2003.
• “Modeling and simulation of ultra-large networks using the DEVS formalism”. NSF Workshop on Modeling and Simulation of Ultra-Large Networks: Challenges and new research directions. Stevens Institute of Technology, NJ. USA. May 2003.
• “Modeling and Simulation of complex cell spaces”. Tutorial at ISC'2003, EuroSim Industrial Simulation Conference. Valencia, Spain. June 2003.
• Invited as participant in the NSF Workshop on Modeling and Simulation of Ultra-Large Networks: Challenges and new research directions. The University of Arizona, Tucson, AZ. USA. 2001
• “Modeling and simulation of complex systems using the DEVS formalism”. Tutorial at Modeling and Simulation 2001, Pittsburgh, PA. USA. May 2001.
• “Introduction to discrete event modeling and simulation”. Tutorial at the Argentine Conference of Computer Sciences. Tandil, Argentina. October 1999.