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CCS
2010
ACM
15 years 4 months ago
Protecting location privacy against inference attacks
GPS-enabled mobile devices are a quickly growing market and users are starting to share their location information with each other through services such as Google Latitude. Locati...
Kazuhiro Minami, Nikita Borisov
IJCAT
2010
273views more  IJCAT 2010»
15 years 4 months ago
FPGA implementation of log-polar mapping
Log-polar or spatially-variant image representation is an important component of active vision system in tracking process for many robotic applications due to its data compression ...
Wai Kit Wong, Chee Wee Choo, Chu Kiong Loo, Joo Pe...
JCO
2010
123views more  JCO 2010»
15 years 4 months ago
Capacity inverse minimum cost flow problem
Given a directed graph G = (N, A) with arc capacities uij and a minimum cost flow problem defined on G, the capacity inverse minimum cost flow problem is to find a new capacit...
Çigdem Güler, Horst W. Hamacher
JCT
2010
117views more  JCT 2010»
15 years 4 months ago
(2+2)-free posets, ascent sequences and pattern avoiding permutations
Abstract. We present bijections between four classes of combinatorial objects. Two of them, the class of unlabeled (2 + 2)-free posets and a certain class of involutions (or chord ...
Mireille Bousquet-Mélou, Anders Claesson, M...
JMLR
2010
143views more  JMLR 2010»
15 years 4 months ago
A Quasi-Newton Approach to Nonsmooth Convex Optimization Problems in Machine Learning
We extend the well-known BFGS quasi-Newton method and its memory-limited variant LBFGS to the optimization of nonsmooth convex objectives. This is done in a rigorous fashion by ge...
Jin Yu, S. V. N. Vishwanathan, Simon Günter, ...