Benjamin Grosof is co-chairing the Ontology, Rules, and Logic Programming for Reasoning and Applications (RulesReasoningLP) mini-series for Ontolog Forum. During the kickoff session on October 24 he presented a “Survey of Knowledge Representations for Rules and Ontologies” (slides).
Benjamin presented on meta knowledge at the October 31 session in his talk “Hilog, Defeasibility, and the Practical Foundations of Meta Knowledge: A Brief Introduction”(slides).