@InProceedings{segers-caselli-vossen:2017:EventStory,
  author    = {Segers, Roxane  and  Caselli, Tommaso  and  Vossen, Piek},
  title     = {The Circumstantial Event Ontology (CEO)},
  booktitle = {Proceedings of the Events and Stories in the News Workshop},
  month     = {August},
  year      = {2017},
  address   = {Vancouver, Canada},
  publisher = {Association for Computational Linguistics},
  pages     = {37--41},
  abstract  = {In this paper we describe the ongoing work on the Circumstantial Event Ontology
	(CEO), a newly developed ontology for calamity events that models semantic
	circumstantial relations between event classes. The circumstantial relations
	are designed manually, based on the shared properties of each event class. We
	discuss and contrast two types of event circumstantial relations: semantic
	circumstantial relations and episodic circumstantial relations. Further, we
	show the metamodel and the current contents of the ontology and outline the
	evaluation of the CEO.},
  url       = {http://www.aclweb.org/anthology/W17-2706}
}