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Natural language processing system and method for parsing a plurality of input symbol sequences into syntactically or pragmatically correct word messages

  • US 5,299,125 A
  • Filed: 02/08/1993
  • Issued: 03/29/1994
  • Est. Priority Date: 08/09/1990
  • Status: Expired due to Term
First Claim
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1. A natural language processing system for initially parsing each of a plurality of sequences of input polysemic symbols, each sequence including a plurality of input polysemic symbols and accessing a single word, morpheme, or phrase, and subsequently combining each of the single words, morphemes, or phrases into a syntactically or pragmatically correct word message, the system comprising:

  • input means, segmented into a plurality of syntactical, semantic, or pragmatic segments, each such segment including a plurality of keys, each key including one of said polysemic symbols, for inputting syntactic, semantic, or pragmatic segment information and the corresponding polysemic symbol of an actuated key;

    first memory means for storing a plurality of symbol sequences, each of said symbol sequences including a plurality of polysemic symbols and syntactic, semantic, or pragmatic segment information, a word, morpheme, or phrase for each of said plurality of symbol sequences, and grammatical and semantic information corresponding to each word, morpheme, or phrase;

    symbol parsing means, operatively connected to said input means and said memory means, for detecting each of a plurality of actuated keys, parsing a plurality of polysemic symbols corresponding to sequentially actuated keys, and comparing said parsed sequence of polysemic symbols and syntactic, semantic, or pragmatic segment information corresponding to the sequentially actuated keys, to thereby access a previously stored word, morpheme or phrase and corresponding previously stored grammatical and semantic information; and

    word combining means, operatively connected to said symbol parsing means, for sequentially accessing each of a plurality of predetermined rules and applying the plurality of predetermined rules to said grammatical and semantic information corresponding to a plurality of words, morphemes, or phrases received from said symbol parsing means to obtain a syntactically or pragmatically correct word message.

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