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  A Family of Decidable Feature Logics which Support HPSG-Style Set and List Constructions y

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by Stephen J. Hegner
http://www.cs.umu.se/~hegner/Publications/HTML/PS/lacl96.ps.gz
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Abstract:

Abstract. A desirable goal of constraint-based parsing is that the whole process should be one of pure algorithmic constraint satisfaction; the implementor should not need to specify any control information, or be aware of how the underlying system implements control. Unfortunately, most existing tools are Turing complete, and hence require additional control information by virtue of their computational power. In this work, a first step towards automatic contraint-based parsing of HPSG is provided, in the form of a family of decidable (for satisfiability) logics in which set and list constructions may be expressed in a uniform fashion, and constraints such as the Nonlocal Feature Principle may be recaptured succinctly.

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