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نویسندگان
چکیده
A new approach to tractable deduction from an expressive knowledge base is presented that approximates formulae by automatically mapping them to some restricted language. Various mappings and their properties are discussed, and an anytime algorithm to compute approximations is presented. Several published approaches prove to be special instances of ours. To illustrate this, our formalism is used to formalize hierarchical knowledge bases, and to extend them by allowing negation and mutual exclusion. We believe this to be the rst comprehensive theoretical framework for approximate reasoning.
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تاریخ انتشار 1992