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» Calculi of Approximation Spaces
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STOC
2005
ACM
130views Algorithms» more  STOC 2005»
16 years 4 months ago
Low-distortion embeddings of general metrics into the line
A low-distortion embedding between two metric spaces is a mapping which preserves the distances between each pair of points, up to a small factor called distortion. Low-distortion...
Mihai Badoiu, Julia Chuzhoy, Piotr Indyk, Anastasi...
SIGMOD
2009
ACM
171views Database» more  SIGMOD 2009»
16 years 4 months ago
GAMPS: compressing multi sensor data by grouping and amplitude scaling
We consider the problem of collectively approximating a set of sensor signals using the least amount of space so that any individual signal can be efficiently reconstructed within...
Sorabh Gandhi, Suman Nath, Subhash Suri, Jie Liu
INFOCOM
2009
IEEE
15 years 11 months ago
Surface Coverage in Wireless Sensor Networks
—Coverage is a fundamental problem in Wireless Sensor Networks (WSNs). Existing studies on this topic focus on 2D ideal plane coverage and 3D full space coverage. In many real wo...
Ming-Chen Zhao, Jiayin Lei, Min-You Wu, Yunhuai Li...
SIGGRAPH
2010
ACM
15 years 9 months ago
Paneling architectural freeform surfaces
The emergence of large-scale freeform shapes in architecture poses big challenges to the fabrication of such structures. A key problem is the approximation of the design surface b...
Michael Eigensatz, Martin Kilian, Alexander Schift...
STOC
1997
ACM
125views Algorithms» more  STOC 1997»
15 years 8 months ago
An Interruptible Algorithm for Perfect Sampling via Markov Chains
For a large class of examples arising in statistical physics known as attractive spin systems (e.g., the Ising model), one seeks to sample from a probability distribution π on an...
James Allen Fill