We are delighted to announce that Alexander Gray will give a Keynote at the 20th Edition of ESWC titeled
In this talk, Alexander will describe new approaches for reasoning which are motivated by the practical limitations of real-world knowledge graphs, i.e. with multiple aspects of imperfection. These include: uncertainty (both subjective and probabilistic), ignorance (unknown uncertainty), partiality (missing variables altogether), and contradiction (inconsistency between pieces of knowledge and/or raw data). These are difficult to find in a single paradigm simultaneously. He will discuss the efficiency of learning and inference, and correctness properties.