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STACS
2000
Springer
13 years 8 months ago
On the Competitive Ratio of the Work Function Algorithm for the k-Server Problem
The k-server problem is one of the most fundamental online problems. The problem is to schedule k mobile servers to visit a sequence of points in a metric space with minimum total...
Yair Bartal, Elias Koutsoupias
IPL
2010
69views more  IPL 2010»
13 years 3 months ago
On the additive constant of the k-server Work Function Algorithm
We consider the Work Function Algorithm for the k-server problem [2, 3]. We show that if the Work Function algorithm is c-competitive, then it is also strictly (2c)-competitive. A...
Yuval Emek, Pierre Fraigniaud, Amos Korman, Adi Ro...
ICALP
2011
Springer
12 years 8 months ago
On the Advice Complexity of the k-Server Problem
Competitive analysis is the established tool for measuring the output quality of algorithms that work in an online environment. Recently, the model of advice complexity has been in...
Hans-Joachim Böckenhauer, Dennis Komm, Rastis...
CORR
2006
Springer
98views Education» more  CORR 2006»
13 years 5 months ago
Bayesian Regression of Piecewise Constant Functions
We derive an exact and efficient Bayesian regression algorithm for piecewise constant functions of unknown segment number, boundary location, and levels. It works for any noise an...
Marcus Hutter
KDD
2004
ACM
135views Data Mining» more  KDD 2004»
14 years 5 months ago
Discovering additive structure in black box functions
Many automated learning procedures lack interpretability, operating effectively as a black box: providing a prediction tool but no explanation of the underlying dynamics that driv...
Giles Hooker