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» Experiences and directions in pushpin computing
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CCECE
2006
IEEE
15 years 4 months ago
New Constraints on Generation of Uniform Random Samples from Evolutionary Trees
In this paper, we introduce new algorithms for selecting taxon samples from large evolutionary trees, maintaining uniformity and randomness, under certain new constraints on the t...
Anupam Bhattacharjee, Zalia Shams, Kazi Zakia Sult...
ECCV
2010
Springer
15 years 3 months ago
Optimizing Complex Loss Functions in Structured Prediction
Abstract. In this paper we develop an algorithm for structured prediction that optimizes against complex performance measures, those which are a function of false positive and fals...
HRI
2010
ACM
15 years 3 months ago
Recognizing engagement in human-robot interaction
—Based on a study of the engagement process between humans, we have developed and implemented an initial computational model for recognizing engagement between a human and a huma...
Charles Rich, Brett Ponsleur, Aaron Holroyd, Canda...
CVPR
2009
IEEE
16 years 5 months ago
Single-Image Optical Center Estimation from Vignetting and Tangential Gradient Symmetry
In this paper, we propose a method for estimating the optical center of a camera given only a single image with vignetting. This is accomplished by identifying the center of the...
Yuanjie Zheng (University Of Delaware), Chandra Ka...
ICCV
2009
IEEE
16 years 3 months ago
Sparse Representation of Cast Shadows via L1-Regularized Least Squares
Scenes with cast shadows can produce complex sets of images. These images cannot be well approximated by lowdimensional linear subspaces. However, in this paper we show that the...
Xue Mei, Haibin Ling, David W. Jacobs