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Catalogue of Artificial Intelligence Techniques

Catalogue of Artificial Intelligence Techniques

   

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Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 1666

Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB.php on line 1387

Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 1683

Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /group/project/aicat/web/lib/database.php on line 113

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Truth Maintenance System

Aliases: Reason Maintenance System

Keywords: RUP, invariant

Categories: Inference and Reasoning , Knowledge Representation


Author(s): D. McAllester

A truth maintenance system (TMS) is used to record justifications for assertions. Such justifications can be used to generate explanations and to track down the assumptions underlying assertions. For example, in RUP every justification is a disjunctive clause of sentential (propositional) atoms and any such clause can be treated as a justification. RUP's TMS takes a set of such propositional clauses and performs propositional Constraint Propagation to ensure that every assertion with a valid justification is in fact believed by the system (thus ensuring a deduction invariant). RUP's TMS also ensures that there is an entry on a contradiction queue for every propositional clause all of whose atoms are false.


References:


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Comments:


Strict Standards: Non-static method DB::isManip() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 2200

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Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 1666

Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB.php on line 1387

Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 1683

Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /group/project/aicat/web/lib/database.php on line 113
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