Error Handling in Spoken Dialogue Systems August 28-31, 2003 Château d'Oex, Vaud, Switzerland

Context Dependent Error Handling by a Three Layered Processing Model

Michael Streit

German Research Center for Artificial Intelligence GmbH, Saarbrücken, Germany

Basically, there exist two different approaches for detection and handling of problematic situations in dialog systems. One approach tries to identify critical phases and overcomes the problem by restarting from unproblematic states. The second approach draws evidence for problematic situations from semantic content and focuses in repairing the situations by revision of interpretations. We provide a processing model that is capable of restart processing and deeper content-based repair analysis as well. We achieve this, by introducing context based decision processes, which determine the appropriate recovering method, starting from different kinds of evidence for problematic situations and combine this approach with a plan-based subdialog designing facility.

Full Paper

Bibliographic reference.  Streit, Michael (2003): "Context dependent error handling by a three layered processing model", In EHSD-2003, 147-152.