Proceedings of JOWO-2015. The Joint Ontology Workshops at IJCAI 2015

The aim of this workshop is to bridge knowledge representation and reasoning in artificial intelligence and web of knowledge communities in order to encourage the emergence of new solutions for reasoning with lightweight ontologies. Particular topics include query answering while taking ontologies into account and non-monotonic reasoning for inconsistency handling and exception handling and expressing default negations in ontologies, with a special interest in logic programming for implementations.