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Calculation of a Composite DET Curve Andy Adler1
 

Summary: Calculation of a Composite DET Curve
Andy Adler1
and Michael E. Schuckers2
1
School of Information Technology and Engineering,
University of Ottawa, Ontario, Canada
adler@site.uOttawa.ca
2
Mathematics, Computer Science and Statistics Department,
St. Lawrence University, Canton, NY, USA and
Center for Identification Technology Research (CITeR)
West Virginia University, Morgantown, WV, USA
schuckers@stlawu.edu
Abstract. The verification performance of biometric systems is nor-
mally evaluated using the receiver operating characteristic (ROC) or
detection error trade-off (DET) curve. We propose two new ideas for sta-
tistical evaluation of biometric systems based on these data. The first is
a new way to normalize match score distributions. A normalized match
score, ^t, is calculated as a function of the angle from a representation
of (FMR, FNMR) values in polar coordinates from some center. This

  

Source: Adler, Andy - Department of Systems and Computer Engineering, Carleton University

 

Collections: Computer Technologies and Information Sciences