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.
Extracting, Aligning, and Linking Data to Build Knowledge Graphs, Plenary talk at the 1st International Workshop on Industrial Knowledge Graphs, June 25, 2017
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
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