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Query transformation system and method enabling retrieval of multilingual web documents

  • US 6,064,951 A
  • Filed: 01/12/1998
  • Issued: 05/16/2000
  • Est. Priority Date: 12/16/1997
  • Status: Expired due to Term
First Claim
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1. A query transformation system enabling retrieval of multilingual web documents comprising:

  • a query input unit for imputing a query consisting of a source language, the query input unit comprising a keyboard;

    an input query memory unit for storing the query, consisting of the source language, received from the query input unit;

    a transformation control unit for controlling the entire query transformation operation of the system;

    a translation generating/filtering unit for generating translations of the input query and filtering unnecessary ones of the generated translations;

    a translation knowledge unit stored with at least one electronic dictionary to be used for a transformation of queries and a variety of information;

    a transformed query memory unit for storing the query transformed from the source language into a target language; and

    a result output unit for outputting the result of the transformation in the form of the target language on a screen;

    wherein the translation generating/filtering unit comprises;

    a translation generator for generating all possible translations of the source language input query by reference to a translation dictionary;

    a semantic category verifier for receiving the generated translations from the translation generator, a eliminating translations having a low semantic similarity from the received translations, based on a semantic category tree; and

    a collocation information verifier for receiving the translations, which includes no translation having a low semantic similarity, from the semantic category verifier, and eliminating translations having no collocation from the received translations, based on word collocation information.

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