Download E-books The Logic of Typed Feature Structures: With Applications to Unification Grammars, Logic Programs and Constraint Resolution (Cambridge Tracts in Theoretical Computer Science) PDF

This publication develops the idea of typed function buildings, a brand new kind of info constitution that generalizes either the first-order phrases of good judgment courses and feature-structures of unification-based grammars to incorporate inheritance, typing, inequality, cycles and intensionality. It provides a synthesis of many current rules right into a uniform framework, which serves as a logical starting place for grammars, good judgment programming and constraint-based reasoning platforms. during the textual content, a logical standpoint is followed that employs an attribute-value description language in addition to whole equational axiomatizations of some of the structures of characteristic constructions. potency issues are mentioned and complexity and representability effects are supplied. the applying of characteristic constructions to word constitution grammars is defined and completeness effects are proven for normal overview ideas. certain clause common sense courses are taken care of as a distinct case of word constitution grammars. Constraint structures are brought and an enumeration procedure is given for fixing arbitrary attribute-value common sense constraints. This e-book with its leading edge method of facts constructions should be crucial examining for researchers in computational linguistics, common sense programming and data illustration. Its self-contained presentation makes it versatile adequate to function either a examine device and a textbook.

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