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ICDE
2001
IEEE
111views Database» more  ICDE 2001»
14 years 10 months ago
Overcoming Limitations of Sampling for Aggregation Queries
We study the problem of approximately answering aggregation queries using sampling. We observe that uniform sampling performs poorly when the distribution of the aggregated attrib...
Surajit Chaudhuri, Gautam Das, Mayur Datar, Rajeev...
ICPR
2008
IEEE
14 years 10 months ago
K-means clustering of proportional data using L1 distance
We present a new L1-distance-based k-means clustering algorithm to address the challenge of clustering high-dimensional proportional vectors. The new algorithm explicitly incorpor...
Bonnie K. Ray, Hisashi Kashima, Jianying Hu, Monin...
ICPR
2006
IEEE
14 years 10 months ago
Biometric Identification of Mice
We present a new application area for biometric recognition: the identification of laboratory animals to replace today's invasive methods. Through biometric identification a ...
Kenneth Nilsson, Thorsteinn S. Rögnvaldsson, ...
ICPR
2006
IEEE
14 years 10 months ago
Linear model combining by optimizing the Area under the ROC curve
In some classification problems, like the detection of illnesses in patients, classes are very unbalanced and the misclassification costs for different classes vary significantly....
David M. J. Tax, Robert P. W. Duin
ICPR
2004
IEEE
14 years 10 months ago
Image Segmentation by Shape Particle Filtering
Statistical appearance models are valuable tools in medical image segmentation. Current methods elegantly incorporate global shape and appearance, but can not cope with local appe...
Mads Nielsen, Marleen de Bruijne