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Text processing and retrieval system and method

  • US 5,963,965 A
  • Filed: 02/18/1997
  • Issued: 10/05/1999
  • Est. Priority Date: 02/18/1997
  • Status: Expired due to Term
First Claim
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1. A content-based text processing and retrieval system, comprising:

  • means for processing a plurality of pieces of text based on content to generate an index for each piece of text, the index comprising a list of phrases that represent the content of the piece of text;

    means for grouping phrases together to generate clusters based on a predetermined degree of relationship between the phrases;

    means for generating a hierarchical structure, the hierarchical structure comprising a plurality of maps, each map corresponding to a predetermined degree of relationship, the map graphically depicting the clusters at the predetermined degree of relationship and comprising a plurality of nodes, each node representing a cluster, and a plurality of links connecting nodes that are related;

    means for selecting a predetermined map;

    means for displaying said selected map to a user;

    means for selecting a particular cluster displayed on said selected map; and

    means for extracting a portion of text from said pieces of text based on the selected cluster.

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