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Proceedings Article, Paper
@InProceedings
Beitrag in Tagungsband, Workshop

Author, Editor
Author(s):
Fotakis, Dimitrisdblp
Editor(s):
Baeten, Jos C.M.
Lenstra, Jan Karel
Parrow, Joachim
Woeginger, Gerhard J.		dblp
dblp
dblp
dblp
Not MPII Editor(s):
Baeten, Jos C.M.
Lenstra, Jan Karel
Parrow, Joachim
Woeginger, Gerhard J.
BibTeX cite key*:
Fot03
Title, Booktitle
Title*:
On the Competitive Ratio for Online Facility Location
icalp03.pdf (229.42 KB)
Booktitle*:
Automata, languages and programming : 30th International Colloquium, ICALP 2003
Event, URLs
Conference URL::
http://www.win.tue.nl/icalp2003/
Downloading URL:
http://link.springer.de/link/service/series/0558/papers/2719/27190637.pdf
Event Address*:
Eindhoven, The Netherlands
Language:
English
Event Date*
(no longer used):
June, 30 - July, 4
Organization:
European Association of Theoretical Computer Science (EATCS)
Event Start Date:
30 June 2003
Event End Date:
4 July 2003
Publisher
Name*:
Springer
URL:
http://www.springer.de/
Address*:
Berlin, Germany
Type:
Vol, No, Year, pp.
Series:
Lecture Notes in Computer Science
Volume:
2719
Number:
Month:
June
Pages:
637-652
Year*:
2003
VG Wort Pages:
ISBN/ISSN:
3-540-40493-7
Sequence Number:
DOI:
Note, Abstract, ©
(LaTeX) Abstract:
We consider the problem of Online Facility Location, where demands arrive online and must be irrevocably assigned to an open facility upon arrival. The objective is to minimize the sum of facility and assignment costs. We prove that the competitive ratio for Online Facility Location is $\Theta(\frac{\log n}{\log\log n})$. On the negative side, we show that no randomized algorithm can achieve a competitive ratio better than $O(\frac{\log n}{\log\log n})$ against an oblivious adversary even if the demands lie on a line segment. On the positive side, we present a deterministic algorithm achieving a competitive ratio of $O(\frac{\log n}{\log\log n})$. The analysis is based on a hierarchical decomposition of the optimal facility locations such that each component either is relatively well-separated or has a relatively large diameter, and a potential function argument which distinguishes between the two kinds of components.
Keywords:
Online Algorithms
Download
Access Level:
Public

Correlation
MPG Unit:
Max-Planck-Institut für Informatik
MPG Subunit:
Algorithms and Complexity Group
Appearance:
MPII WWW Server, MPII FTP Server, MPG publications list, university publications list, working group publication list, Fachbeirat, VG Wort



BibTeX Entry:

@INPROCEEDINGS{Fot03,
AUTHOR = {Fotakis, Dimitris},
 EDITOR = {Baeten, Jos C.M. and Lenstra, Jan Karel and Parrow, Joachim and Woeginger, Gerhard J.},
 TITLE = {On the Competitive Ratio for Online Facility Location},
 BOOKTITLE = {Automata, languages and programming : 30th International Colloquium, ICALP 2003},
 PUBLISHER = {Springer},
 YEAR = {2003},
 ORGANIZATION = {European Association of Theoretical Computer Science (EATCS)},
 VOLUME = {2719},
 PAGES = {637--652},
 SERIES = {Lecture Notes in Computer Science},
 ADDRESS = {Eindhoven, The Netherlands},
 MONTH = {June},
 ISBN = {3-540-40493-7},
}

Entry last modified by Christine Kiesel, 03/02/2010
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Editor(s)
Dimitris Fotakis		Created
04/09/2003 14:16:46
Revisions
11.
10.
9.
8.
7.		Editor(s)
Christine Kiesel
Christine Kiesel
Christine Kiesel
Christine Kiesel
Christine Kiesel		Edit Dates
15.06.2004 14:33:07
15.06.2004 14:31:03
11.06.2004 17:06:33
11.06.2004 17:06:21
06/24/2003 01:55:19 PM

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