Title: An extending description logic for action formalism in event ontology

Authors: Wei Liu; Wenjie Xu; Dong Wang; Xujie Zhang; Zongtian Liu

Addresses: School of Computer Engineering and Science, Shanghai University, Room 226, Xingjian Building, 149 Yanchang Road, Shanghai 200072, China ' School of Computer Engineering and Science, Shanghai University, Room 222, Xingjian Building, 149 Yanchang Road, Shanghai 200072, China ' School of Computer Engineering and Science, Shanghai University, Room 222, Xingjian Building, 149 Yanchang Road, Shanghai 200072, China ' School of Computer Engineering and Science, Shanghai University, Room 222, Xingjian Building, 149 Yanchang Road, Shanghai 200072, China ' School of Computer Engineering and Science, Shanghai University, Room 220, Xingjian Building, 149 Yanchang Road, Shanghai 200072, China

Abstract: Event-based ontology model is a new approach for the representation of human knowledge with a higher granularity. As the basic knowledge unit, event describes the specific facts which change over time, and actions involved in event are exactly used to represent these changing processes. There exists semantic information in action as well as rich semantic relations between different actions. Therefore, in order to describe and reason about event-based knowledge effectively, this paper firstly gives a framework of event ontology, and then proposes an action formalism based on extended description logic that could describe actions with temporal information. Furthermore, some reasoning tasks about action are discussed, such as the executability and projection of action, effects of action, etc. At last, a case study of social web verifies the feasibility of this method of knowledge representation.

Keywords: extended description logic; action formalism; event ontology; temporal information; semantic information; semantic relations; knowledge representation; semantic web.

DOI: 10.1504/IJCSE.2014.060680

International Journal of Computational Science and Engineering, 2014 Vol.9 No.3, pp.205 - 214

Received: 22 Feb 2012
Accepted: 21 May 2012

Published online: 24 May 2014 *

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