Beschreibung

The Truth Maintenance Workshop was held in August 1990 during the European Conference on Artificial Intelligence in Stockholm, Sweden. Ten selected papers, eight of them presented at the workshop, are included in this volume. The papers can be grouped into four main areas: - Meta-level control: the goal here is to specify some meta-criteria to control the behavior of the TMS. - Extensions of TMS: here the aim is to incorporate new mechanisms into TMS-like systems. - Foundations: there is now much interest in providing formal descriptions of TMS, proving results about them, and relating them with other non-monotonic formalisms. - Belief revision: TMS can be considered as providing support to manage the more general problem of belief revision.

This volume presents ten selected papers relating to the Truth Maintenance Workshop, August 1990, Stockholm. The main themes are: meta-level control, extensions of Truth Maintenance Systems, foundations, and belief revision.

Inhalt
Putting the problem solver back in the Driver's seat: Contextual control of the ATMS.- Variations on backtracking for TMS.- An abductive procedure for the CMS/ATMS.- Knowledge assimilation and abduction.- Truth maintenance systems and belief revision.- A possibilistic assumption-based truth maintenance system with uncertain justifications, and its application to belief revision.- ARC: An extended ATMS based on directed CAT-correct resolution.- On logical foundations of the ATMS.- A skeptical semantics for truth maintenance.- Semantic accounts of belief revision.

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