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ALGORITHMICA
2007
132views more  ALGORITHMICA 2007»
13 years 7 months ago
On the Feasibility of Time Estimation under Isolation Conditions in Wireless Sensor Networks
We study the problem of providing a sensor with an accurate estimate of the time, from a novel perspective which is complementary to the well-studied clock synchronization problem....
Daniela Tulone
JCST
2007
97views more  JCST 2007»
13 years 7 months ago
Improved Collision Attack on Hash Function MD5
In this paper, we present a fast attack algorithm to find two-block collision of hash function MD5. The algorithm is based on the two-block collision differential path of MD5 that ...
Jie Liang, Xue-Jia Lai
CVPR
2007
IEEE
14 years 9 months ago
Face Re-Lighting from a Single Image under Harsh Lighting Conditions
In this paper, we present a new method to change the illumination condition of a face image, with unknown face geometry and albedo information. This problem is particularly diffic...
Yang Wang, Zicheng Liu, Gang Hua, Zhen Wen, Zhengy...
ICONIP
2008
13 years 9 months ago
Identifying Emotions Using Topographic Conditioning Maps
Abstract. The amygdala is the neural structure that acts as an evaluator of potentially threatening stimuli. We present a biologically plausible model of the visual fear conditioni...
Athanasios Pavlou, Matthew C. Casey
SIAMMAX
2011
92views more  SIAMMAX 2011»
12 years 10 months ago
A Condition for Convexity of a Product of Positive Definite Quadratic Forms
A sufficient condition for the convexity of a finite product of positive definite quadratic forms is given in terms of the condition numbers of the underlying matrices. When only...
Minghua Lin, Gord Sinnamon