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Fault-tolerant search

  • US 9,934,308 B2
  • Filed: 01/28/2015
  • Issued: 04/03/2018
  • Est. Priority Date: 03/05/2012
  • Status: Active Grant
First Claim
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1. A method comprising:

  • displaying one or more search results from a previous search of a particular database;

    receiving first input specifying a query of the particular database comprising a first text string comprising one or more terms;

    processing the query against the particular database by performing a first search of the particular database for the one or more terms;

    in response to identifying no search results for the query, classifying each of the one or more terms, of the first text string, as a bad term;

    adding the one or more terms to a first list that is empty before the one or more terms are classified as bad terms;

    receiving second input that changes the first text string to a second text string;

    determining whether a particular term in the second text string begins with a term in the first list;

    in response to determining that the particular term in the second text string begins with a term in the first list, removing the particular term from the second text string;

    processing the query against the particular database by performing a second search of the particular database for only the second text string without the particular term;

    in response to identifying no search results based on the second search, incrementing a counter;

    determining whether the counter is equal to a particular threshold;

    continuing to display the one or more search results that were displayed from the previous search only if the counter is less than the particular threshold.

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