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### Begin Citation ### Do not delete this line ###
%R 2000-01
%U /web/faculty/shapiro/Papers/sneps-autobr.ps
%A Shapiro, Stuart C.
%A  Johnson, Frances L.
%T Automatic Belief Revision in SNePS
%D March 03, 2000
%I Department of Computer Science and Engineering, SUNY Buffalo
%K Belief Revision; Knowledge Representation; Reasoning
%Y Knowledge Representation Formalisms and Methods
%X SNePS is a logic- and network- based knowledge representation, 
reasoning, and acting system, based on a monotonic, paraconsistent, 
first-order term logic, with compositional intensional semantics.  It 
has an ATMS-style facility for belief contraction, and an acting 
component, including a well-defined syntax and semantics for primitive 
and composite acts, as well as for ``rules'' that allow for acting in 
support of reasoning and reasoning in support of acting.  SNePS has 
been designed to support natural language competent cognitive agents.   
When the current version of SNePS detects an explicit contradiction, 
it interacts with the user, providing information that helps the user 
decide what to remove from the knowledge base in order to remove the 
contradiction.  The forthcoming SNePS~2.6 will also do automatic 
belief contraction if the information in the knowledge base warrents 
it.