The Semantics of Variables in Action Descriptions

Action description language C+ is more expressive than ADL in many ways; for instance, it addresses the ramification problem. On the other hand, ADL is based on first-order logic, while C+ is only propositional; expressions with variables, which are frequently used when action domains are described in C+, are merely schemas describing finite sets of causal laws that are formed according to the same pattern. In this paper we propose a new approach to the semantics of action descriptions with variables that combines attractive features of ADL and C+.

• Type: Conference
• Year: 2007
• Where: AAAI
• Authors: Vladimir Lifschitz, Wanwan Ren
• Keywords: AAAI 2007, Action Descriptions, Description Language C+, Intelligent Agents, Ramification Problem