| 2020 | invited speaker: Constructing and Using Knowledge Graphs for Cybersecurity, OMG AI Platform Task Force Quarterly meeting, June 2020. |
| 2019 | invited speaker: Fifty years of using knowledge graphs for language understanding, Knowledge Representation & Reasoning Meets Machine Learning Workshop, MIT, Sept. 2019 |
| 2018 | invited speaker: Constructing and Using Knowledge Graphs for Cybersecurity, JHU Applied Physics Laboratory, 15 Nov. 2018. invited speaker: From Strings to Things: Populating Knowledge Bases from Text, KBCOM 2018: First Workshop on Knowledge Base Construction, Reasoning and Mining at WSDM 2018 in Los Angeles, California, February 9, 2018. invited panelist: U.S. Semantic Technologies Symposium, March 1-2, 2018, Wright State University, Dayton, Ohio. invited panelist: Utilizing Artificial Intelligence to Improve CyberSecurity, National Press Club, May 29, 2018. |
| 2017 | invited speaker: From Strings to Things: From Text to Knowledge Graphs, Georgtown University, Nov. 2017. invited panelist: Cybersecurity Supply Chain, Cyber3 Conference, Keio University, Japan, Nov. 2017. invited panelist: Information Sharing and Exchanges: STIX/TAXII, Cyber3 Conference, Keio University, Japan, Nov. 2017. invited speaker: From Strings to Things: From Text to Knowledge Graphs, DoD, April 2017.
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