Best Research Paper at ISWC 2016

Renzo Angles and Claudio Gutierrez were awarded "Best Research Paper" at the International Semantic Web Conference (ISWC 2016) for their paper entitled "The multiset semantics of SPARQL patterns". The paper provides a formal comparison of the various ways in which negation can be expressed in SPARQL and possible semantics to characterise negation when duplicate results are allowed.