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TVCG
2010
165views more  TVCG 2010»
13 years 6 months ago
A Visual Backchannel for Large-Scale Events
—We introduce the concept of a Visual Backchannel as a novel way of following and exploring online conversations about large-scale events. Microblogging communities, such as Twit...
Marian Dörk, Daniel M. Gruen, Carey Williamso...
FUN
2010
Springer
230views Algorithms» more  FUN 2010»
13 years 11 months ago
Scheduling with Bully Selfish Jobs
In job scheduling with precedence constraints, i j means that job j cannot start being processed before job i is completed. In this paper we consider selfish bully jobs who do no...
Tami Tamir
CVPR
2009
IEEE
15 years 2 months ago
Observe Locally, Infer Globally: a Space-Time MRF for Detecting Abnormal Activities with Incremental Updates
We propose a space-time Markov Random Field (MRF) model to detect abnormal activities in video. The nodes in the MRF graph correspond to a grid of local regions in the video fra...
Jaechul Kim (University of Texas at Austin), Krist...
WWW
2006
ACM
14 years 8 months ago
Invisible participants: how cultural capital relates to lurking behavior
The asymmetry of activity in virtual communities is of great interest. While participation in the activities of virtual communities is crucial for a community's survival and ...
Vladimir Soroka, Sheizaf Rafaeli
CSCW
2012
ACM
12 years 3 months ago
Shepherding the crowd yields better work
Micro-task platforms provide massively parallel, ondemand labor. However, it can be difficult to reliably achieve high-quality work because online workers may behave irresponsibly...
Steven Dow, Anand Pramod Kulkarni, Scott R. Klemme...