A circumscriptive theory for causal and evidential support

  • Authors:
  • Eunok Paek

  • Affiliations:
  • Department of Computer Science, Stanford University, Stanford, California

  • Venue:
  • AAAI'90 Proceedings of the eighth National conference on Artificial intelligence - Volume 1
  • Year:
  • 1990

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Abstract

Reasoning about causality is an interesting application area of formal nonmonotonic theories. Here we focus our attention on a certain aspect of causal reasoning, namely causal asymmetry. In order to provide a qualitative account of causal asymmetry, we present a justification-based approach that uses circumscription to obtain the minimality of causes. We define the notion of causal and evidential support in terms of a justification change with respect to a circumscriptive theory and show how the definition provides desirable interactions between causal and evidential support.