Region Connection Calculus: Its models and composition table

Publisher:
Elsevier B.V
Publication Type:
Journal Article
Citation:
Artificial Intelligence, 2003, 145 (1-2), pp. 121 - 146
Issue Date:
2003-01
Full metadata record
Files in This Item:
Filename Description Size
Thumbnail2007004948OK.pdf360.35 kB
Adobe PDF
Originating in Allen's analysis of temporal relations, the notion of composition table has become a key technique in providing an efficient inference mechanism for a wide class of theories in the field artificial intelligence. This paper is mainly about the consistency-based composition table (RCC8 CT) of the Region Connection Calculus (RCC) raised by Randell, Cui and Cohn. First we show each RCC model is a consistent model of the RCC8 CT. Then after an exhaustive analysis we show that no RCC model can be interpreted extensionally anyway and hence give a negative answer to a conjecture raised by Bennett. All these results are given in an `extensional RCC8 composition table, where we attach to each cell entry in the RCC8 CT a superscript to indicate in what circumstances an extensional interpretation is possible.
Please use this identifier to cite or link to this item: