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ECCV
2006
Springer
16 years 8 months ago
Ellipse Fitting with Hyperaccuracy
For fitting an ellipse to a point sequence, ML (maximum likelihood) has been regarded as having the highest accuracy. In this paper, we demonstrate the existence of a "hyperac...
Ken-ichi Kanatani
MFCS
2004
Springer
15 years 11 months ago
Online Algorithms for Disk Graphs
We study the on-line versions of two fundamental graph problems, maximum independent set and minimum coloring, for the case of disk graphs which are graphs resulting from intersect...
Ioannis Caragiannis, Aleksei V. Fishkin, Christos ...
APPROX
2007
Springer
80views Algorithms» more  APPROX 2007»
15 years 10 months ago
Coarse Differentiation and Multi-flows in Planar Graphs
We show that the multi-commodity max-flow/min-cut gap for series-parallel graphs can be as bad as 2, matching a recent upper bound [8] for this class, and resolving one side of a ...
James R. Lee, Prasad Raghavendra
AUSAI
2008
Springer
15 years 8 months ago
A Refutation Approach to Neighborhood Interchangeability in CSPs
The concept of Interchangeability was developed to deal with redundancy of values in the same domain. Conventional algorithms for detecting Neighborhood Interchangeability work by ...
Chavalit Likitvivatanavong, Roland H. C. Yap
CORR
2008
Springer
91views Education» more  CORR 2008»
15 years 6 months ago
The Mixing Time of Glauber Dynamics for Colouring Regular Trees
We consider Metropolis Glauber dynamics for sampling proper qcolourings of the n-vertex complete b-ary tree when 3 q b/2 ln(b). We give both upper and lower bounds on the mixing...
Leslie Ann Goldberg, Mark Jerrum, Marek Karpinski