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WWW
2011
ACM
14 years 6 months ago
Differences in the mechanics of information diffusion across topics: idioms, political hashtags, and complex contagion on twitte
There is a widespread intuitive sense that different kinds of information spread differently on-line, but it has been difficult to evaluate this question quantitatively since it ...
Daniel M. Romero, Brendan Meeder, Jon M. Kleinberg
CHI
2004
ACM
16 years 4 days ago
Categorical imperative NOT: facial affect is perceived continuously
Facial affect (or emotion) recognition is a central issue for many VMC and naturalistic computing applications. Most computational models assume "categorical perception"...
Diane J. Schiano, Sheryl M. Ehrlich, Kyle Sheridan
VRST
2003
ACM
15 years 5 months ago
Time-critical collision detection using an average-case approach
We present a novel, generic framework and algorithm for hierarchical collision detection, which allows an application to balance speed and quality of the collision detection. We p...
Jan Klein, Gabriel Zachmann
IMC
2007
ACM
15 years 1 months ago
Understanding the limitations of transmit power control for indoor wlans
A wide range of transmit power control (TPC) algorithms have been proposed in recent literature to reduce interference and increase capacity in 802.11 wireless networks. However, ...
Vivek Shrivastava, Dheeraj Agrawal, Arunesh Mishra...
MSWIM
2009
ACM
15 years 6 months ago
Designing an asynchronous group communication middleware for wireless users
We evaluate an asynchronous gossiping middleware for wireless users that propagates messages from any group member to all the other group members. This propagation can either be i...
Xuwen Yu, Surendar Chandra