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» On Approximability of Minimum Bisection Problem
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COMPGEOM
2006
ACM
14 years 3 months ago
Embedding ultrametrics into low-dimensional spaces
We study the problem of minimum-distortion embedding of ultrametrics into the plane and higher dimensional spaces. Ultrametrics are a natural class of metrics that frequently occu...
Mihai Badoiu, Julia Chuzhoy, Piotr Indyk, Anastasi...
MOBIHOC
2006
ACM
14 years 9 months ago
Mobile backbone networks --: construction and maintenance
We study a novel hierarchical wireless networking approach in which some of the nodes are more capable than others. In such networks, the more capable nodes can serve as Mobile Ba...
Anand Srinivas, Gil Zussman, Eytan Modiano
PODS
2009
ACM
110views Database» more  PODS 2009»
14 years 10 months ago
Optimal tracking of distributed heavy hitters and quantiles
We consider the the problem of tracking heavy hitters and quantiles in the distributed streaming model. The heavy hitters and quantiles are two important statistics for characteri...
Ke Yi, Qin Zhang
SIP
2003
13 years 11 months ago
Design of Full Band IIR Digital Differentiators
This paper presents an efficient method for designing full band IIR digital differentiators in the complex Chebyshev sense. The proposed method is based on the formulation of a g...
Xi Zhang, Toshinori Yoshikawa
EDBT
2008
ACM
99views Database» more  EDBT 2008»
14 years 9 months ago
Querying time-series streams
Index trees created using distance based indexing are difficult to maintain online since the distance function involved is often costly to compute. This problem is intensified whe...
Vivekanand Gopalkrishnan