Bottom-up Earley deduction

  • Authors:
  • Gregor Erbach

  • Affiliations:
  • University of the Saarland, Saarbrücken, Germany

  • Venue:
  • COLING '94 Proceedings of the 15th conference on Computational linguistics - Volume 2
  • Year:
  • 1994

Quantified Score

Hi-index 0.00

Visualization

Abstract

We propose a botto - 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.