I have given many seminars on a wide variety of topics. Some of the institutions at which I have spoken include: Harvard, MIT, Columbia, SUNY Binghamton, University of Bridgeport, University of Delaware, Dartmouth College, Tulane University, University of Houston, Pembroke State University, Alabama State University at Montgomery, Oakland University in Rochester Michigan, McMaster University, the University of Southern Maine, and Rensselaer Polytechnic Institute. I have also spoken at a variety of IBM facilities and to many different visitors at IBM. Below are some selected talks, dates and topics. I have given additional talks at professional meetings which are listed above with the publications and conference papers. Some of the talks listed here are also listed in the Conference Papers section. Not listed below are talks given at the University of Maine. In 2010-2011 I gave 17 of those. I have not kept track of these talks consistently over the years, so many others are not listed.

1. Tutorial on Cybersecurity Tools, IEEE Maine Chapter, Professional Development Session, Augusta, ME, October 4, 2011.
2. Universal Asset Assessment System Based on Excel™, Proceedings of the 6th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems (IDAACS 2011), Prague, Czech Republic, September 15-17, 2011, pp, 747-752.
3. Tutorial on Cybersecurity Tools, The 2011 International Conference on Security and Management, Las Vegas, NV, July 18-21, 2011 (SAM’11).
4. Using the Castle Metaphor to Communicate Basic Concepts in Cybersecurity Education, The 2011 International Conference on Security and Management, Las Vegas, NV, July 18-21, 2011 (SAM’11), pp. 507-511 (with L. Markowsky).
5. Consumer Guide to Online Cybersecurity Resources: UMCEG, International Conference on Security and Management, The 2010 International Conference on Security and Management, Las Vegas, NV, July 12-15, 2010 (SAM’10), pp. 243-247 (with L. Markowsky)
6. Defining Outcomes for the Team Experience, ABET Symposium, April 15-17, 2010, Las Vegas, Nevada (Electronic Proceedings).
7. Comparing Apples and Oranges: How to Select the Most Probable Targets. 2009 IEEE International Conference on Technologies for Homeland Security, Waltham, MA, May 11-12, 2009.
8. What Order Theory Can Tell You About Comparing Apples and Oranges: The Problem of Selecting the Most Probable Target. Invited presentation at the 5th Conference on Mathematical Methods in Counterterrorism, AAAS, Washington, DC, March 12-13, 2009.
9. November 15, 2007, Gregory Chaitin and Algorithmic Information Theory, invited talk at the Randomness and Complexity Symposium celebrating Gregory Chaitin’s 60th Birthday at the IBM Thomas J. Watson Research Center in Yorktown Heights, NY.
10. October 26, 2007, The Truth About Chernobyl presented at the RPI Lally School of Management and Technology as part of their graduate course MGMT-7750, “Global Business and Corporate Social Responsibility.”
11. September 22, 2007, Invited Presentation at the Fourth Conference on Mathematical Methods in Counterterrorism, Rochester Institute of Technology, Combinatorial Analysis of Binary Relations, Posets and Lattices.
12. November 17, 2006, Presentation to the Boston Chapter of the IEEE at MIT’s Lincoln Labs in Lexington, MA, Applying the Lessons Learned from Chernobyl to Homeland Security and the Resurrection of Nuclear Power.
13. November 10, 2006, Presentation to the RPI Department of Mechanical, Aerospace, and Nuclear Engineering, Applying the Lessons Learned from Chernobyl to the Resurrection of Nuclear Power.
14. November 9, 2006, RPI Lally School Energy Forum, Chernobyl: The Remediation of a Nuclear Disaster.
15. October 11, 2006, Presentation to the executives from the China Three Gorges Project, at RPI, Troy NY, The Challenges of Nuclear Power.
16. September 14, 2006, Presentation to the New England and Eastern Canada Cargo Security Symposium, Manchester, NH, Developing Cargo Security Technologies.
17. August 31, 2006, Presentation to the Executive MBA Program of RPI in Prague, Czech Republic, The Development of Ukraine into a Modern State.
18. June 8, 2006, Panel Member at the 2006 IEEE Homeland Security Conference, Cambridge, MA, Homeland Security & Higher Education: Current & Future Trends.
19. April 16, 2004, Presentation to the National Guard at Camp Keyes, Augusta, Maine, Homeland Security.
20. February 11, 2004, Presentation to the National Guard at Camp Keyes, Augusta, Maine, Homeland Security and Economic Development.
21. November 2003, Master of Ceremonies at the MeSDA Geeks in Black Event.
22. July 2003, DIMACS Workshop on Applications of Lattices and Ordered Sets to Computer Science
23. April 2003, EPSCoR Workshop on Cyberinfrastructure, Arlington, VA, Global Connectivity.
24. January 29, 2003, NSF-AMPATH Meeting, Miami, FL, Information Technology and Homeland Security.
25. January 17, 2003, Special Session on Order Theory at the Annual Meeting of the American Mathematical Society, Baltimore, The Poset of Irreducibles–A Basis for Lattice Theory.
26. October 30, 2002, Regional SBIR Conference, Burlington, VT, Experiences with the SBIR Program.
27. August 15, 2002, First Annual Learners, Laptops and Powerful Ideas Conference, University of Maine, The History of Computing.
28. June 30, 2002, University of Maine Conference on Neo-Platonism, The Golden Ratio.
29. May 4, 2001, Reconstructing Objects from 2-Dimensional Views, Brooklyn College, Brooklyn, NY.
30. April 18-23, 2001, EPSCoR Internet 2 Day, University of Puerto Rico, Internet 2 at the University of Maine.
31. April 25, 2001, University of Maine at Farmington, Software Agents.
32. November 28, 2000, University of Southern Maine, Software Agents.
33. March 6-7, 2000, Bioterrorism 2000 Conference, Birmingham Alabama, The Use of Augmented Reality in Bioterrorism Training of Crisis Responders.
34. February 2000, invited speaker at Postech University, Pohang, South Korea, Overview of the Poset of Irreducibles.
35. August 1999, invited speaker at the Ordal’99 (Order and Algorithms) meeting held in Montpelier France, The Poset of Irreducibles.
36. June 11-12, 1999, Invited Speaker, Regional MAA Conference, Colby College, Some Misconceptions about the Golden Ratio.
37. April 14, 1999, Invited Speaker, Seventh Annual Chaos in Manufacturing Conference, Santa Fe, NM, Agent-Based Computing.
38. March 3, 1999, Richmond University, London, England Some Misconceptions about the Golden Ratio.
39. July 29, 1998, Bath Iron Works, The Capabilities of the Maine Software Industry.
40. July 2, 1998, Bangor Public Library, It’s Time to Bury the Two Maines.
41. April 1997, Fifth Annual Chaos in Manufacturing Conference, Santa Fe, NM, Workshop on Chaos Theory.
42. July 1996, MindShip Foundation of Copenhagen Denmark, Complexity.
43. May 1996, appeared in Maine Public TV’s Quest program about the Internet.
44. April 1996, Fourth Annual Chaos in Manufacturing Conference, Santa Fe, NM, Traffic Jams, Bottlenecks and Other Paradoxes of Emergent Systems.
45. February 1996, Eggs and Issues, Portland Maine, The Internet Comes to Maine.
46. January 1996, Annual New England Water Environmental Association Conference in Boston, The Internet is Coming!
47. Summer 1995, Black Sea University’s Summer School on Algorithmic Information Theory, Introduction to Algorithmic Information Theory.
48. April 1995, Third Annual Chaos in Manufacturing Conference, Santa Fe, NM, The Mathematics of Emergent Systems.
49. May 1994, MIT, The Poset of Irreducibles.
50. March 1994, Second Annual Chaos in Manufacturing Conference in Santa Fe, NM, Introduction to Chaos Theory and Fractals.
51. March 1994, University of Massachusetts, Amherst, The Poset of Irreducibles.
52. March 12, 1993, Ottawa University, Algorithmic Lattice Theory.
53. March 11, 1993, Carleton University, Measure Theory for Computer Scientists.
54. September 1993, Third International Conference on Discrete Mathematics and Applications, Blagoevgrad, Bulgaria, Extremal Lattices.
55. August 1991, AMS Summer Meeting at the University of Maine, The Number of D-classes in the Semigroup of Binary Relations on 5-Elements.
56. June 1991, Darmstadt Germany, Conference in Honor of Garrett Birkhoff’s 80th Birthday, two talks on lattice theory.
57. October 1990, AMS meeting in Amherst, Massachusetts, Chaired a section of the Special Session on Lattices, Geometry and Combinatorics.
58. November 1989, University of Southern Maine, Numerical Tic-Tac-Toe.
59. October 1988, Federal Conference on Computer Support of Handicapped Individuals, What’s Wrong with the Guidelines.
60. 1982, Rockefeller University and Mt. Sinai Medical Center, Biology, Computers and Discrete Mathematics.
61. 1981, Adelphi University, Voice Controlled Programming.
62. April 1977 Invited speaker at the 1977 workshop on Continuous Lattices held at Tulane University, Chain Complete Partial Orders.