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In this paper, we consider the following form of temporal abduction: given a domain theory where each explanatory formula is augmented with a set of temporal constraints on the atoms occurring in the formula, and given a set of observed atoms, with associated temporal constraints, the goal is the generation of a temporally consistent abductive explanation of the observations. Temporal abduction is...
Model-based diagnosis (MBD) tackles the problem of troubleshooting systems starting from a description of their structure and function (or behavior). Time is a fundamental dimension in MBD: the behavior of most systems is time-dependent in one way or another. Temporal MBD, however, is a difficult task and indeed many simplifying assumptions have been adopted in the various approaches in the literature...
Given a consistent knowledge base formed by a set of constraints, efficient query answering (e.g., checking whether a set of constraints is consistent with the knowledge base or necessarily true in it) is practically very important. In the paper we consider bounds on differences (which are an important class of constraints based on linear inequalities) and we analyze the computational complexity...
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