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IPPS
2009
IEEE
15 years 10 months ago
Sensor network connectivity with multiple directional antennae of a given angular sum
We investigate the problem of converting sets of sensors into strongly connected networks of sensors using multiple directional antennae. Consider a set S of n points in the plane...
Binay K. Bhattacharya, Yuzhuang Hu, Qiaosheng Shi,...
ECML
2006
Springer
15 years 7 months ago
Graph Based Semi-supervised Learning with Sharper Edges
In many graph-based semi-supervised learning algorithms, edge weights are assumed to be fixed and determined by the data points' (often symmetric) relationships in input space...
Hyunjung Shin, N. Jeremy Hill, Gunnar Rätsch
VTC
2006
IEEE
121views Communications» more  VTC 2006»
15 years 10 months ago
Location-Dependent Parameterization of a Random Direction Mobility Model
— Mobility models are widely used in simulation-based performance analyses of mobile networks. However, there is a trade-off between simplicity and realistic movement patterns. S...
Bernd Gloss, Michael Scharf, Daniel Neubauer
ICML
2006
IEEE
16 years 4 months ago
Fast direct policy evaluation using multiscale analysis of Markov diffusion processes
Policy evaluation is a critical step in the approximate solution of large Markov decision processes (MDPs), typically requiring O(|S|3 ) to directly solve the Bellman system of |S...
Mauro Maggioni, Sridhar Mahadevan
ICRA
2009
IEEE
164views Robotics» more  ICRA 2009»
15 years 10 months ago
Information retrieval system for human-robot communication - Asking for directions
— The creation of a robot capable of navigating in unknown urban environments without the use of GPS data or prior map knowledge is envisioned in the Autonomous City Explorer (AC...
Andrea Maria Bauer, Dirk Wollherr, Martin Buss