English

Memoryless Algorithms for the Generalized $k$-server Problem on Uniform Metrics

Data Structures and Algorithms 2020-07-20 v1

Abstract

We consider the generalized kk-server problem on uniform metrics. We study the power of memoryless algorithms and show tight bounds of Θ(k!)\Theta(k!) on their competitive ratio. In particular we show that the \textit{Harmonic Algorithm} achieves this competitive ratio and provide matching lower bounds. This improves the 22k\approx 2^{2^k} doubly-exponential bound of Chiplunkar and Vishwanathan for the more general setting of uniform metrics with different weights.

Keywords

Cite

@article{arxiv.2007.08669,
  title  = {Memoryless Algorithms for the Generalized $k$-server Problem on Uniform Metrics},
  author = {Dimitris Christou and Dimitris Fotakis and Grigorios Koumoutsos},
  journal= {arXiv preprint arXiv:2007.08669},
  year   = {2020}
}
R2 v1 2026-06-23T17:10:58.422Z