Amortized efficiency of list update and paging rules
Communications of the ACM
Competitive algorithms for server problems
Journal of Algorithms
An optimal on-line algorithm for K-servers on trees
SIAM Journal on Computing
New results on server problems
SIAM Journal on Discrete Mathematics
Journal of Algorithms
An optimal on-line algorithm for metrical task system
Journal of the ACM (JACM)
Lower Bounds for Randomized $k$-Serverand Motion-Planning Algorithms
SIAM Journal on Computing
Journal of the ACM (JACM)
Information Processing Letters
A polylog(n)-competitive algorithm for metrical task systems
STOC '97 Proceedings of the twenty-ninth annual ACM symposium on Theory of computing
A better lower bound on the competitive ratio of the randomized 2-server problem
Information Processing Letters
On approximating arbitrary metrices by tree metrics
STOC '98 Proceedings of the thirtieth annual ACM symposium on Theory of computing
Online computation and competitive analysis
Online computation and competitive analysis
Unfair problems and randomized algorithms for metrical task systems
Information and Computation
A randomized algorithm for two servers on the line
Information and Computation
Better algorithms for unfair metrical task systems and applications
STOC '00 Proceedings of the thirty-second annual ACM symposium on Theory of computing
A Decomposition Theorem for Task Systems and Bounds for Randomized Server Problems
SIAM Journal on Computing
Developments from a June 1996 seminar on Online algorithms: the state of the art
Developments from a June 1996 seminar on Online algorithms: the state of the art
The 3-Server Problem in the Plane
ESA '99 Proceedings of the 7th Annual European Symposium on Algorithms
FOCS '99 Proceedings of the 40th Annual Symposium on Foundations of Computer Science
Probabilistic approximation of metric spaces and its algorithmic applications
FOCS '96 Proceedings of the 37th Annual Symposium on Foundations of Computer Science
Towards the randomized k-server conjecture: a primal-dual approach
SODA '10 Proceedings of the twenty-first annual ACM-SIAM symposium on Discrete Algorithms
Metrical task systems and the k-server problem on HSTs
ICALP'10 Proceedings of the 37th international colloquium conference on Automata, languages and programming
The k-resource problem on uniform and on uniformly decomposable metric spaces
WADS'07 Proceedings of the 10th international conference on Algorithms and Data Structures
| Hi-index | 0.00 |
The first general decomposition theorem for the k-server problem is presented. Whereas all previous theorems are for the case of a finite metric with k + 1 points, the theorem given here allows an arbitrary number of points in the underlying metric space. This theorem implies O(polylog(k))-competitive randomized algorithms for certain metric spaces consisting of a polylogarithmic number of widely separated sub-spaces, and takes a first step towards a general O(polylog(k))- competitive algorithm. The only other cases for which polylogarithmic competitive randomized algorithms are known are the uniform metric space, and the weighted cache metric space with two weights.