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US 8,020,005 B2Granted
Method and apparatus for multi-model hybrid comparison system
AssigneeScout Analytics, Inc.
InventorsSeshadri Mani, David M. D'Andrea
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Abstract
A user authentication system collects measurements of physical and/or behavioral characteristics of a user. The measurements are processed by two or more processing engines to produce initial confidence measures, and a unified confidence measure is prepared from weighted inputs including the initial confidence measures.
Claims21
A method comprising:
- collecting a plurality of one type of biometric measurements of a user;
- computing a first confidence measure from the biometric measurements according to a first algorithm and a second confidence measure from the biometric measurements according to a second algorithm,
- wherein the first confidence measure is based on at least two of:
- a) string complexity based on a length of the string, repeated letters of the string, and repeated sequences of letters of the string, b) biometric template maturity based on a time elapsed since template creation, a time elapsed since the latest template update, a frequency with which the template has been used, and a frequency with which the template has been updated, and c) engine initial confidence based on an authentication scoring history of the user;
- and
- wherein the second confidence measure is based on at least two of:
- a) string complexity based on a length of the string, repeated letters of the string, and repeated sequences of letters of the string, b) biometric template maturity based on a time elapsed since template creation, a time elapsed since the latest template update, a frequency with which the template has been used, and a frequency with which the template has been updated, and c) engine initial confidence based on an authentication scoring history of the user;
- and
- preparing a unified confidence measure from weighed inputs including the first confidence measure and the second confidence measure.
6 more elements
A non-transitory computer-readable medium containing instructions to cause a processor to perform operations comprising:
- collecting one type of biometric measurements of a user;
- processing the biometric measurements with a plurality of processing engines, each processing engine to produce an initial confidence result;
- and
- computing a unified confidence result comprising a weighted sum of the initial confidence results, wherein weights of the weighted sum limit input of each processing engine to the weighted sum until confidence in performance of each processing engine is gained, and wherein confidence of each processing engine is based on an authentication scoring history of the user.
1 more element
A system comprising:
- a processor;
- a memory;
- a storage device;
- a hybrid pre-processor to collect one type of biometric input data;
- a hybrid processor to pass a first dataset derived from the biometric input data to a first processing engine and to pass a second dataset derived from the biometric input data to a second processing engine;
- and
- a hybrid unified score calculator to compute a unified confidence result from a first output of the first processing engine and a second output of the second processing engine,
- wherein the first output of the first processing engine comprises a string complexity based on a length of the string, repeated letters of the string, and repeated sequences of letters of the string, and wherein the second output of the second processing engine comprises a string complexity based on a length of the string, repeated letters of the string, and repeated sequences of letters of the string.
5 more elements
Dependencies are inferred from the claim text.