• From Artwork to Cyber Attacks: Lessons Learned in Building Knowledge Graphs using Semantic Web Technologies, Plenary talk at the U.S. Semantic Technologies Symposium, March 1, 2018.
  • Learning to Adapt to Sensor Changes and Failures, Invited talk at the IJCAI Workshop on AI for Internet of Things, August 19, 2017.
  • Extracting, Aligning, and Linking Data to Build Knowledge Graphs, Plenary talk at the 1st International Workshop on Industrial Knowledge Graphs, June 25, 2017
  • Creating and Using Linked Knowledge, Robert S. Engelmore Memorial Lecture Award, IAAI, July 29, 2014
  • Harvesting Named Geographic Features from Raster Maps, Invited talk at GeoINT 2011 Symposium Interoperability Tech Talks, San Antonio, TX, Oct 18, 2011.
  • A General Approach to Discovering, Registering, and Extracting Features from Raster Maps, Invited talk at Google, Inc., Mountain View, CA, August 25, 2010.
  • Building Semantic Descriptions of Linked Data, Invited talk at the 1st International Workshop on Consuming Linked Data (COLD 2010) at the International Semantic Web Conference, 2010.
  • Interactively Building Geospatial Mashups, Keynote talk at the 2nd International Workshop on New Trends in Information Integration, Long Beach, CA, March 5, 2010
  • A General Approach to Discovering, Registering, and Extracting Features from Raster Maps, Invited talk at the Conference on Document Recognition and Retrieval of the IS&TSPIE 19th Annual Symposium International Symposium on Electronic Imaging, San Jose, CA, January 20, 2010
  • Discovering and Building Semantic Models of Web Sources, Keynote address at 6th Annual European Semantic Web Conference (ESWC2009), Heraklion, Greece, June 3, 2009
  • Finding, Extracting, and Integrating Data from Maps, Invited talk at University of Nebraska, Lincoln CSE Colloquium Series, November 29, 2007.
  • Beyond the Elves: Making Intelligent Agents Intelligent, Invited talk at AAAI Spring Symposium on What Went Wrong and Why, Palo Alto, CA, March 28, 2006
  • Learning to Optimize Plan Execution in Information Agents, Plenary talk at the 6th International Conference on Case-Based Reasoning (ICCBR 2005), Chicago, IL, USA, August 25, 2005
  • Building Software Agents for Planning, Monitoring, and Optimizing Travel, Plenary talk at the Eleventh International Conference On Information Technology and Travel & Tourism, Cairo, Egypt, January, 26, 2004
  • Deploying Information Agents on the Web, Plenary talk at the International Joint Conference on Artificial Intelligence (IJCAI-03), Acapulco, Mexico, August 15, 2003
  • Integrating Online and Geospatial Information Sources, Plenary talk at the Summer Assembly of the University Consoritum for Geographic Information Science, Monterey, CA, June 17, 2003