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» On Cryptographic Assumptions and Challenges
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ECML
2007
Springer
16 years 15 days ago
Fast Optimization Methods for L1 Regularization: A Comparative Study and Two New Approaches
L1 regularization is effective for feature selection, but the resulting optimization is challenging due to the non-differentiability of the 1-norm. In this paper we compare state...
Mark Schmidt, Glenn Fung, Rómer Rosales
AICT
2006
IEEE
122views Communications» more  AICT 2006»
16 years 12 days ago
Optimizing and Balancing Load in Fully Distributed P2P File Sharing Systems
A peer-to-peer file sharing system includes a lookup and a content distribution protocol. Very efficient peer-to-peer protocols exist for content distribution, but efficient in...
Anh-Tuan Gai, Laurent Viennot
ICRA
2005
IEEE
107views Robotics» more  ICRA 2005»
15 years 12 months ago
Wheel Torque Control in Rough Terrain - Modeling and Simulation
Abstract - This paper presents a method for wheel-ground contact angle measurement and a traction control strategy minimizing slip in rough terrain. The slip minimization algorithm...
Pierre Lamon, Roland Siegwart
ISNN
2005
Springer
15 years 12 months ago
A Study on Illumination Invariant Face Recognition Methods Based on Multiple Eigenspaces
It is a challenge to recognize faces under variable poses or illumination directions. In the area of multiview face recognition, many experimental results have shown that the perfo...
Wu-Jun Li, Chong-Jun Wang, Dianxiang Xu, Bin Luo, ...
AIRS
2004
Springer
15 years 11 months ago
Applying CLIR Techniques to Event Tracking
Abstract. Cross-lingual event tracking from a very large number of information sources (thousands of Web sites, for example) is an open challenge. In this paper we investigate effe...
Nianli Ma, Yiming Yang, Monica Rogati