This book constitutes the refereed proceedings of the 20th InternationalConference on Knowledge
Engineering and Knowledge Management EKAW 2016 held in Bologna Italy in November 2016. The
51 full papers presented were carefully reviewed and selected from 171 submissions. The papers
cover all aspects of eliciting acquiring modeling and managing knowledge the construction
of knowledge-intensive systems and services for the Semantic Web knowledge management
e-business natural language processing intelligent information integration personal digital
assistance systems and a variety of other related topics. A special focus was on evolving
knowledge i.e. the impact of space and time on knowledge representation concerning all
aspects of the management and acquisition of knowledge representation of evolving contextual
and local models.
