2838 search results - page 125 / 568 » Interactions in Online Education |
CHI
2009
ACM
15 years 6 months ago
2009
ACM
For over a century, citizen scientists have volunteered to collect huge quantities of data for professional scientists to analyze. We designed Pathfinder, an online environment th...
CA
2003
IEEE
15 years 5 months ago
2003
IEEE
This research explores ways of harnessing people’s passion for entertainment in order to stimulate players to attain the meta-learning skills they need for lifelong learning and...
CORR
2008
Springer
14 years 12 months ago
2008
Springer
In this paper two scheduling models are addressed. First is the standard model (unicast) where requests (or jobs) are independent. The other is the broadcast model where broadcast...
121
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CORR
2010
Springer
14 years 6 months ago
2010
Springer
We consider an opportunistic spectrum access (OSA) problem where the time-varying condition of each channel (e.g., as a result of random fading or certain primary users' activ...
122
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CORR
2011
Springer
14 years 3 months ago
2011
Springer
—The fundamental problem of multiple secondary users contending for opportunistic spectrum access over multiple channels in cognitive radio networks has been formulated recently ...