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CIKM
2011
Springer
12 years 9 months ago
Do all birds tweet the same?: characterizing twitter around the world
Social media services have spread throughout the world in just a few years. They have become not only a new source of information, but also new mechanisms for societies world-wide...
Barbara Poblete, Ruth Garcia, Marcelo Mendoza, Ale...
EUSFLAT
2009
171views Fuzzy Logic» more  EUSFLAT 2009»
13 years 7 months ago
Convergence Theorems for Generalized Random Variables and Martingales
We examine generalizations of random variables and martingales. We prove a new convergence theorem for setvalued martingales. We also generalize a well known characterization of se...
Andrew L. Pinchuck
CDC
2010
IEEE
147views Control Systems» more  CDC 2010»
13 years 4 months ago
Generalized multicircumcenter trajectories for optimal design under near-independence
This work deals with trajectory optimization for a network of robotic sensors sampling a spatio-temporal random field. We examine the problem of minimizing over the space of networ...
Rishi Graham, Jorge Cortés
TIT
2011
144views more  TIT 2011»
13 years 4 months ago
Network Generalized Hamming Weight
— In this paper, we extend the notion of generalized Hamming weight for classical linear block code to linear network codes by introducing the network generalized Hamming weight ...
Chi Kin Ngai, Raymond W. Yeung, Zhen Zhang
SIAMMA
2010
86views more  SIAMMA 2010»
13 years 4 months ago
Spreading Speeds for Some Reaction-Diffusion Equations with General Initial Conditions
This paper is devoted to the study of some qualitative and quantitative aspects of nonlinear propagation phenomena in diffusive media. More precisely, we consider the case a react...
François Hamel, Yannick Sire