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» On Cryptographic Assumptions and Challenges
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ECML
2007
Springer
16 years 6 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 2 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 11 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 11 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