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WINE
2010
Springer
168views Economy» more  WINE 2010»
14 years 8 months ago
On the Competitive Ratio of Online Sampling Auctions
We study online profit-maximizing auctions for digital goods with adversarial bid selection and uniformly random arrivals. Our goal is to design auctions that are constant competit...
Elias Koutsoupias, George Pierrakos
ICASSP
2011
IEEE
14 years 1 months ago
Keypoint-based near-duplicate images detection using affine invariant feature and color matching
This paper presents a new keypoint-based approach to nearduplicate images detection. It consists of three steps. Firstly, the keypoints of images are extracted and then matched. S...
Yue Wang, Zujun Hou, Karianto Leman
FCCM
2006
IEEE
138views VLSI» more  FCCM 2006»
15 years 1 months ago
Efficient Hardware Generation of Random Variates with Arbitrary Distributions
This paper presents a technique for efficiently generating random numbers from a given probability distribution. This is achieved by using a generic hardware architecture, which t...
David B. Thomas, Wayne Luk
FOCM
2008
156views more  FOCM 2008»
14 years 10 months ago
Random Sampling of Sparse Trigonometric Polynomials, II. Orthogonal Matching Pursuit versus Basis Pursuit
We investigate the problem of reconstructing sparse multivariate trigonometric polynomials from few randomly taken samples by Basis Pursuit and greedy algorithms such as Orthogona...
Stefan Kunis, Holger Rauhut
CVPR
2005
IEEE
16 years 5 days ago
Random Subwindows for Robust Image Classification
We present a novel, generic image classification method based on a recent machine learning algorithm (ensembles of extremely randomized decision trees). Images are classified usin...
Justus H. Piater, Louis Wehenkel, Pierre Geurts, R...