Research

Toward User Patterns for Online Security: Observation Time and Online User Identification
Decision Support Systems, 2010

Research in biometrics suggests that the time period a specific trait is monitored over (i.e. observing speech or handwriting “long enough”) is useful for identification. Focusing on this aspect, this paper by Assistant Professor Catherine Yang and co-author Balaji Padmanabhan from the University of South Florida presents a data mining analysis of the effect of observation time period on user identification based on online user behavior.

The authors show that online identification accuracies improve with pooling user data over sessions and present results that quantify the number of sessions needed to identify users at desired accuracy thresholds. We discuss potential applications of this for verification of online user identity, particularly as part of multi-factor authentication methods.

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Andrew Barkett Finds Innovative Ways to Fuel Entrepreneurship
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The secret of Midtown Sacramento’s Facebook gaming mogul Mark Otero’s success is taking things to the extreme.