In era of big data, semantic web gives meaning @andrewiliadis @DecimalUOIT @UOITCDMS speaker series. From seminal work of #JohnSowa and #DougLenat, semantics solves many varieties of data described in heterogeneous ways, with controlled vocabularies of preferred tags. Schemas, graphs, ontologies now in the age of social media and search engines. (Centre for Social Innovation, Spadina Avenue, Toronto, Ontario) 20190128