Abstract
In this article a new characterization of the set of diagnoses in the domain of consistency-based diagnosis is developed. The needs for such a characterization arise from the inability of the current characterizations (e.g. minimal diagnoses and kernel diagnoses) to deal with abstractions like component hierarchies. We propose a characterization based on theories which takes advantage of hierarchies and therefore allows a concise description of various sets of diagnoses (e.g. minimal diagnoses and kernel diagnoses). We investigate a concise description of the set of all minimal diagnoses in detail and focus on hierarchical theories. Finally, we show that theory-based diagnoses and hierarchical theories provide efficient generators for computing minimal diagnoses.
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This is an extended version of a paper which appeared inProceedings IJCAI-93.
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Friedrich, G. Theory diagnoses: A concise characterization of faulty systems. Ann Math Artif Intell 11, 263–282 (1994). https://doi.org/10.1007/BF01530745
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DOI: https://doi.org/10.1007/BF01530745