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COMBINATORICS
1999
113views more  COMBINATORICS 1999»
14 years 9 months ago
Bicoloring Steiner Triple Systems
A Steiner triple system has a bicoloring with m color classes if the points are partitioned into m subsets and the three points in every block are contained in exactly two of the ...
Charles J. Colbourn, Jeffrey H. Dinitz, Alexander ...
WEA
2005
Springer
89views Algorithms» more  WEA 2005»
15 years 3 months ago
Don't Compare Averages
We point out that for two sets of measurements, the sign of the difference of their averages is not necessarily maintained by a non-linear monotone transformation of the individu...
Holger Bast, Ingmar Weber
WWW
2010
ACM
15 years 4 months ago
Generalized distances between rankings
Spearman’s footrule and Kendall’s tau are two well established distances between rankings. They, however, fail to take into account concepts crucial to evaluating a result set...
Ravi Kumar, Sergei Vassilvitskii
ICBA
2004
Springer
224views Biometrics» more  ICBA 2004»
15 years 3 months ago
Matching 2.5D Scans for Face Recognition
Abstract. The performance of face recognition systems that use twodimensional images is dependent on consistent conditions such as lighting, pose, and facial appearance. We are dev...
Xiaoguang Lu, Dirk Colbry, Anil K. Jain
ICCV
2009
IEEE
16 years 2 months ago
Scene Shape Priors for Superpixel Segmentation
Unsupervised over-segmentation of an image into superpixels is a common preprocessing step for image parsing algorithms. Superpixels are used as both regions of support for feat...
Alastair P. Moore, Simon J. D. Prince, Jonathan Wa...