Bottom-Up Earley Deduction

Gregor Erbach

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arXiv · cmp-lg/9502004

Bottom-Up Earley Deduction

Gregor Erbach

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Abstract

We propose a bottom-up variant of Earley deduction. Bottom-up deduction is preferable to top-down deduction because it allows incremental processing (even for head-driven grammars), it is data-driven, no subsumption check is needed, and preference values attached to lexical items can be used to guide best-first search. We discuss the scanning step for bottom-up Earley deduction and indexing schemes that help avoid useless deduction steps.

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Gregor Erbach. 1995-02-05. Bottom-Up Earley Deduction. https://arxiv.org/abs/cmp-lg/9502004

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