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DCOSS
2008
Springer
15 years 8 months ago
Local PTAS for Independent Set and Vertex Cover in Location Aware Unit Disk Graphs
We present the first local approximation schemes for maximum independent set and minimum vertex cover in unit disk graphs. In the graph model we assume that each node knows its geo...
Andreas Wiese, Evangelos Kranakis
OPODIS
2008
15 years 8 months ago
Computing and Updating the Process Number in Trees
The process number is the minimum number of requests that have to be simultaneously disturbed during a routing reconfiguration phase of a connection oriented network. From a graph ...
David Coudert, Florian Huc, Dorian Mazauric
ICALP
2009
Springer
16 years 7 months ago
Towards a Study of Low-Complexity Graphs
Abstract. We propose the study of graphs that are defined by lowcomplexity distributed and deterministic agents. We suggest that this viewpoint may help introduce the element of in...
Sanjeev Arora, David Steurer, Avi Wigderson
PODS
2006
ACM
217views Database» more  PODS 2006»
16 years 6 months ago
A simpler and more efficient deterministic scheme for finding frequent items over sliding windows
In this paper, we give a simple scheme for identifying approximate frequent items over a sliding window of size n. Our scheme is deterministic and does not make any assumption on ...
Lap-Kei Lee, H. F. Ting
ICASSP
2009
IEEE
16 years 1 months ago
Visual grouping by neural oscillators
Distributed synchronization is known to occur at several scales in the brain, and has been suggested as playing a key functional role in perceptual grouping. State-of-the-art visu...
Guoshen Yu, Jean-Jacques E. Slotine