On variable sized vector packing

Epstein Leah: On variable sized vector packing. In: Acta cybernetica, (16) 1. pp. 47-56. (2003)

[thumbnail of cybernetica_016_numb_001_047-056.pdf]
Preview
Cikk, tanulmány, mű
cybernetica_016_numb_001_047-056.pdf

Download (922kB) | Preview

Abstract

One of the open problems in on-line packing is the gap between the lower bound Ω(l) and the upper bound O(d) for vector packing of d-dimensional items into d-dimensional bins. We address a more general packing problem with variable sized bins. In this problem, the set of allowed bins contains the traditional "all-1" vector, but also a finite number of other d-dimensional vectors. The study of this problem can be seen as a first step towards solving the classical problem. It is not hard to see that a simple greedy algorithm achieves competitive ratio O(d) for every set of bins. We show that for all small ε > 0 there exists a set of bins for which the competitive ratio is 1 + ε. On the other hand we show that there exists a set of bins for which every deterministic or randomized algorithm has competitive ratio Ω(d). We also study one special case for d = 2.

Item Type: Article
Journal or Publication Title: Acta cybernetica
Date: 2003
Volume: 16
Number: 1
ISSN: 0324-721X
Page Range: pp. 47-56
Language: English
Place of Publication: Szeged
Related URLs: http://acta.bibl.u-szeged.hu/38515/
Uncontrolled Keywords: Számítástechnika, Kibernetika
Additional Information: Bibliogr.: 56. p. ; összefoglalás angol nyelven
Subjects: 01. Natural sciences
01. Natural sciences > 01.02. Computer and information sciences
Date Deposited: 2016. Oct. 15. 12:25
Last Modified: 2022. Jun. 14. 15:15
URI: http://acta.bibl.u-szeged.hu/id/eprint/12708

Actions (login required)

View Item View Item