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O(log(n)) parallel parsing of a subclass of LL(1) languages

Shankar, P (1990) O(log(n)) parallel parsing of a subclass of LL(1) languages. In: Proceedings of the International Conference Parallel Computing 89, 29 Aug.-1 Sept. 1989, Leiden, Netherlands, pp. 511-516.

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Abstract

A parallel algorithm that requires O(log(n)) time on O(n) processors on a CREW PRAM, is presented for the parsing of a subclass of the strong LL(1) languages. The technique involves mapping an input string into an output string representing the sequence of changes to the parsing stack during a parse sequence. If the input string is in the language, the output string is a member of the semi-Dyck set with r parenthesis pairs where r is the number of stack symbols. There exists an optimal algorithm for testing membership in this set.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to North-Holland.
Keywords: computational complexity;formal languages;grammars;parallel algorithms;parallel programming
Department/Centre: Division of Electrical Sciences > Computer Science & Automation (Formerly, School of Automation)
Date Deposited: 28 Jan 2008
Last Modified: 12 Jan 2012 09:21
URI: http://eprints.iisc.ernet.in/id/eprint/11203

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