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Cautious Backtracking in Truth Maintenance Systems

  • Catholijn Jonker
Part of the Synthese Library book series (SYLI, volume 229)

Abstract

Truth Maintenance is one of the areas in which backtracking as a method for belief revision is used. A Truth Maintenance System (TMS) is a system that maintains a coherent and consistent interpretation for a problem solver. The problem solver supplies the TMS with propositional information concerning its reasoning process. This information is called a dependency theory and consists of pieces of information called nodes and reasons for belief in nodes, called justifications, and constraints on the interpretation. A constraint expresses that some beliefs are incompatible. In a changeable environment the system must be able to revise its interpretation whenever this interpretation contradicts new information. To resolve contradictions belief revision is necessary.

Keywords

Logic Program Problem Solver Stable Model Belief Revision Dependency Theory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 1993

Authors and Affiliations

  • Catholijn Jonker
    • 1
  1. 1.Department of Computer Science and Department of PhilosophyUtrecht UniversityThe Netherlands

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