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APPROX
2006
Springer
234views Algorithms» more  APPROX 2006»
15 years 10 months ago
Constant-Factor Approximation for Minimum-Weight (Connected) Dominating Sets in Unit Disk Graphs
For a given graph with weighted vertices, the goal of the minimum-weight dominating set problem is to compute a vertex subset of smallest weight such that each vertex of the graph...
Christoph Ambühl, Thomas Erlebach, Matú...
WIOPT
2006
IEEE
16 years 20 days ago
Scheduling sensor activity for point information coverage in wireless sensor networks
Abstract— An important application of wireless sensor networks is to perform the monitoring missions, for example, to monitor some targets of interests at all times. Sensors are ...
Bang Wang, Kee Chaing Chua, Vikram Srinivasan, Wei...
DIGRA
2003
Springer
15 years 12 months ago
Exploration in computer games - a new starting point
Space, vast lands and dungeons… It is no coincidence that Space War and Adventure are among the best known of the first computer games. Both clearly appeal to the player’s cur...
Simon Egenfeldt-Nielsen
CORR
2004
Springer
103views Education» more  CORR 2004»
15 years 6 months ago
Online convex optimization in the bandit setting: gradient descent without a gradient
We study a general online convex optimization problem. We have a convex set S and an unknown sequence of cost functions c1, c2, . . . , and in each period, we choose a feasible po...
Abraham Flaxman, Adam Tauman Kalai, H. Brendan McM...
177
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ICIP
2008
IEEE
16 years 8 months ago
Ultrasound imaging LV tracking with adaptive window size and automatic hyper-parameter estimation
The segmentation of the heart's left ventricle (LV) chamber in several medical imaging modalities, e.g. Ultrasound (US) and Magnetic Resonance (MRI), is important from a clin...
Jacinto Nascimento, João Sanches