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An Efficient Augmented-Context-Free Parsing Algorithm Export

Computational Linguistics, Vol. 13, No. 1-2. (1987), pp. 31-46.

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extensible-syntax glr-parsing lr-parsing parsing

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This paper introduces an efficient on-line parsing algorithm, and focuses on its practical application to natural language interfaces. The algorithm can be viewed as a generalized LR parsing algorithm that can handle arbitrary context-free grammars, including ambiguous grammars. Section 2 describes the algorithm by .extending the standard LR parsing algorithm with the idea of a "graph-structured stack". Section 3 describes how to represent parse trees efficiently, so that all possible parse...


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