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MFCS
2009
Springer
16 years 1 months ago
The Isomorphism Problem for k-Trees Is Complete for Logspace
Abstract. We show that k-tree isomorphism can be decided in logarithmic space by giving a logspace canonical labeling algorithm. This improves over the previous StUL upper bound an...
Johannes Köbler, Sebastian Kuhnert
COMPGEOM
2006
ACM
16 years 19 days ago
How slow is the k-means method?
The k-means method is an old but popular clustering algorithm known for its observed speed and its simplicity. Until recently, however, no meaningful theoretical bounds were known...
David Arthur, Sergei Vassilvitskii
ISORC
2005
IEEE
16 years 7 days ago
Stochastic, Utility Accrual Real-Time Scheduling with Task-Level and System-Level Timeliness Assurances
Heuristic algorithms have enjoyed increasing interests and success in the context of Utility Accrual (UA) scheduling. However, few analytical results, such as bounds on task-level...
Peng Li, Hyeonjoong Cho, Binoy Ravindran, E. Dougl...
SOFSEM
2005
Springer
16 years 4 days ago
Discovering Treewidth
Abstract. Treewidth is a graph parameter with several interesting theoretical and practical applications. This survey reviews algorithmic results on determining the treewidth of a ...
Hans L. Bodlaender
AAAI
2007
15 years 9 months ago
On the Value of Good Advice: The Complexity of A* Search with Accurate Heuristics
We study the behavior of the classical A∗ search algorithm when coupled with a heuristic that provides estimates, accurate to within a small multiplicative factor, of the distan...
Hang T. Dinh, Alexander Russell, Yuan Su