What is Event Knowledge Graph: A Survey. (arXiv:2112.15280v1 [cs.LG])

Besides entity-centric knowledge, usually organized as Knowledge Graph (KG),
events are also an essential kind of knowledge in the world, which trigger the
spring up of event-centric knowledge representation form like Event KG (EKG).
It plays an increasingly important role in many machine learning and artificial
intelligence applications, such as intelligent search, question-answering,
recommendation, and text generation. This paper provides a comprehensive survey
of EKG from history, ontology, instance, and application views. Specifically,
to characterize EKG thoroughly, we focus on …

arxiv event graph knowledge graph survey