Ora Lassila, Principal Graph Technologist in the Amazon Neptune team at AWS will our Keynote Speaker. 

He was a co-author of the original W3C RDF specification, and co-authored the seminal article on the Semantic Web..

He was a Managing Director at State Street, where he headed ontology engineering. He has been involved in various Semantic Web activities since 1996, and worked on various complex applications involving Knowledge Representation (KR) for a good 10 years prior to that. For more biographical notes, see here.