Abstract: There are many methods of ontology-based knowledge modeling. However, there are some deficiencies in adopting traditional ontology modeling methods in some specific domain. This paper takes emergency domain ontology as an example and proposes a knowledge modeling method based on event ontology. Event ontology model is divided into upper event class, lower event class and event individuals. The upper event class describes an abstract classification system and the lower event class is an event lattice structure composed of event class relationships. This model can not only describe the time, place, objects and other elements of the event class, but also describe the relationships between the event classes. It uses the ontology modeling tool Protégé to construct the emergency domain ontology and takes the “terrorist attack” as an example to verify the usability of this model. The experimental results show that this model can describe the integrity of event class clearly, expresses semantics clearly and has strong expandability.

Key words: ontology, event ontology, domain ontology, ontology modeling, knowledge model, event relationship

摘要： 基于本体的知识建模方法有很多，在某些特定领域采用传统的本体建模方法存在着一些不足。以突发事件领域为例，提出了基于事件本体的知识建模方法。该模型分为上层事件类、下层事件类和事件实例，上层事件类描述的抽象的事件的分类体系，下层事件类是通过事件类关系组成的事件格结构。该模型不仅可以描述事件的时间、地点、对象等要素，还能描述事件类之间的关系。采用本体建模工具Protégé来构建突发事件领域本体，并以“恐怖袭击”作为实例验证了该模型的可用性。研究结果表明，该模型可以清晰地描述事件类的完整性，语义清晰，扩展性强。

关键词: 本体, 事件本体, 领域本体, 本体建模, 知识建模, 事件关系体