In memoriam: Jack Minker

By Dietmar Seipel and Carolina Ruiz. It is with great sadness that we inform the CS community of Jack Minker’s passing on April 9, 2021. Jack was a pioneer in deductive databases and the leading researcher in disjunctive deductive databases.…

RTEC: Run-Time Event Calculus

By Alexander Artikis RTEC is an open-source Event Calculus dialect optimised for data stream reasoning. It is written in Prolog and has been tested under YAP and SWI Prolog. GitHub repository: https://github.com/aartikis/RTEC Features Interval-based. Sliding window reasoning. Interval manipulation constructs…

In memoriam: Harold Boley

We sadly announce the passing of Harold Boley, a friendly colleague, AI researcher and initiator of RuleML meetings and  community. Our condolescences to his family, friends, and collaborators.     The Rule ML community has written a detailed and heartfelt…