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SEARCH ENGINE, SEARCH SYSTEM, SEARCH METHOD, AND SEARCH PROGRAM PRODUCT

  • US 20090216752A1
  • Filed: 02/16/2009
  • Published: 08/27/2009
  • Est. Priority Date: 02/27/2008
  • Status: Active Grant
First Claim
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1. A search system comprising:

  • a database for storing information to be searched for;

    a communication processing unit that receives a search request including a search word, sends a search request to search the database, and sends a search result; and

    a search engine including the search engine which receives the search request through the communication processing unit and searches for the information, said search engine comprising;

    a token assignment unit for extracting a character string from the information and assigning a plurality of kinds of tokens obtained through different types of character string analyses;

    an index generating unit for generating an index list that registers the tokens, a type identification value for determining a type of a target one of the character string analyses, and an information identification value for identifying the information in association with one another;

    a search processing unit that receives a search word used for inquiring for the information and links a plurality of kinds of search tokens extracted from the search word in parallel to issue a search command to inquire the information in parallel for searching through the index list based on the search command; and

    a search result generating unit for generating a file used for displaying the information obtained by searching in association with the search word upon performing the parallel inquiry, as a search result.

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