Preliminary codes and rules for the automatic parsing of English.

by J. B. Robinson

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An interim report on automatic computer analysis (parsing) of the English language intended to lead to techniques that will enable the electronic computer to receive natural English sentences and convert them internally to formal structures suitable for further machine manipulation. The memorandum describes what is essentially a two-part machine grammar. The first part develops a system of codes for indicating the syntactic role or roles a particular word plays. This is the parts-of-speech category of the grammar. The second part consists of a set of parsing rules for listing all the grammatically permissible combinations of adjacent codes and supplying a new code for each combination. This permits the machine to determine how words have been put together in substructures (e.g., subject, verb, object) in actual sentences.

This report is part of the RAND Corporation Research memorandum series. The Research Memorandum was a product of the RAND Corporation from 1948 to 1973 that represented working papers meant to report current results of RAND research to appropriate audiences.

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