The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2014
Filed:
Sep. 27, 2012
Emc Corporation, Hopkinton, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
An improved technique involves automatically producing a set of KBA questions using values of attributes associated with correctly answered questions. A KBA question server obtains such attribute values from a prior set of pilot questions taken from users who were successfully authenticated. Examples of attributes include a source of facts in a question, placement of facts in a question, and question structure. The KBA question server then generates optimal formatting rules based on the attribute values; such formatting rules define a relationship between facts used to derive KBA questions and the words used to express the KBA questions to users. The KBA question generator then produces KBA questions according to the formatting rules.