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Author Pisani, Pier Paolo ♦ von Glasersfeld, Ernst
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Keyword Syntatic analysis ♦ Tree-structure interpretation ♦ Parsing ♦ Correlational grammar ♦ Matching procedures ♦ Linguistic data processing ♦ Structure recognition ♦ Automatic abstracting ♦ Computational linguistics ♦ Natural-language analysis ♦ Pattern recognition ♦ Machine translation
Abstract A syntactic parser is described for hierarchical concatenation patterns that are presented to the analyzer in the form of linear strings. Particular emphasis is given to the system of “significant addresses” by means of which processing times for large-scale matching procedures can be substantially reduced. The description makes frequent use of examples taken from the fully operational implementation of the parser in an experimental English sentence analyzer.By structuring an area of the computer's central core storage in such a way that the individual locations of bytes and bits come to represent the data involved in the matching procedure, the shifting of information is reduced to a minimum, and the searching of lists is eliminated altogether. The matches are traced by means of binary masks and the state of single bits determines the operational flow of the procedure. The method could be implemented with any interpretive grammar, provided it can be expressed by the functional classification of the items composing the input hierarchical structures.
Description Affiliation: Univ. of Georgia and Georgia Insitute for Research, Athens, Georgia (von Glasersfeld, Ernst; Pisani, Pier Paolo)
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2005-08-01
Publisher Place New York
Journal Communications of the ACM (CACM)
Volume Number 13
Issue Number 2
Page Count 9
Starting Page 74
Ending Page 82


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Source: ACM Digital Library