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Distributed computer database system and method for performing object search

  • US 6,463,433 B1
  • Filed: 03/23/2000
  • Issued: 10/08/2002
  • Est. Priority Date: 07/24/1998
  • Status: Expired due to Term
First Claim
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1. A method for information retrieval using fuzzy queries in a distributed computer database system having a plurality of home nodes and a plurality of query nodes connected by a network, said method comprising the steps of:

  • A) selecting a first one of said plurality of home nodes;

    B) extracting, by said selected home node, a plurality of features from a query by a user;

    C) fragmenting, by said selected home node, each said extracted feature of said plurality of extracted features into a plurality of query fragments;

    D) hashing, by said selected home node, each said query fragment of said plurality of query fragments, said hashed query fragment having a first portion and a second portion;

    E) transmitting, by said selected home node, each said hashed query fragment of said plurality of query fragments to a respective one of said plurality of query nodes indicated by said first portion of each said hashed query fragment;

    F) using, by said query node, said second portion of said respective hashed query fragment to access data according to a local hash table located on said query node; and

    G) returning, by each said query node accessing data according to said respective hashed query fragment, a plurality of object identifiers corresponding to said accessed data to said selected home node.

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