A practical approach to revising prioritized knowledge bases

Author

Benferhat, Salem ; Dubois, Didier ; Prade, Henri ; Williams, Mary-Anne

Author_Institution

IRIT, Toulouse, France

fYear

1999

fDate

36495

Firstpage

170

Lastpage

173

Abstract

This paper investigates simple syntactic methods to revise prioritized belief bases, that are semantically meaningful in the frameworks of possibility theory and of Spohn´s (1988) ordinal conditional functions. Here, revising prioritized belief bases amounts to conditioning a distribution function on interpretations. Different types of scales for priorities are discussed: finite vs. infinite, numerical vs. ordinal. Syntactic revision is envisaged as a process which transforms prioritized belief bases into a new prioritized belief base, and thus allows for the subsequent iteration

Keywords

belief maintenance; knowledge based systems; knowledge verification; possibility theory; distribution function; ordinal conditional functions; possibility theory; prioritized belief bases; prioritized knowledge base revision; syntactic methods; Artificial intelligence; Australia; Databases; Distribution functions; Intelligent systems; Knowledge management; Logic; Management information systems; Possibility theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Knowledge-Based Intelligent Information Engineering Systems, 1999. Third International Conference

Conference_Location

Adelaide, SA

Print_ISBN

0-7803-5578-4

Type

conf

DOI

10.1109/KES.1999.820146

Filename

820146