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System access determination based on classification of stimuli

  • US 9,432,199 B2
  • Filed: 06/15/2011
  • Issued: 08/30/2016
  • Est. Priority Date: 06/16/2010
  • Status: Active Grant
First Claim
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1. An authentication system, comprising:

  • a hardware processor configured to;

    collect information associated with at least one of a user'"'"'s use of a resource and demographic information associated with the user;

    perform a statistical analysis of at least one of the collected information and one or more previous responses to stimuli;

    select, based at least in part on the statistical analysis, one or more stimuli for which the user'"'"'s classifications are unlikely to be guessable;

    cause at least some of the selected one or more stimuli to be presented to the user;

    obtain a user response to a stimulus in the presented stimuli, wherein the response comprises a classification by the user of a topic associated with the stimulus;

    store classification data provided by the user;

    receive classification data associated with the user;

    compare the received classification data to at least a portion of the stored classification data previously provided by the user; and

    determine whether to authorize an action based at least in part on the comparison; and

    a memory coupled to the processor and configured to the processor to provide the processor with instructions.

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