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@InProceedings
Beitrag in Tagungsband, Workshop

Author, Editor
Author(s):
Fernau, Henning
Fomin, Fedor V.
Lokshtanov, Daniel
Mnich, Matthias
Philip, Geevarghese
Saurabh, Saket
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Not MPG Author(s):
Fernau, Henning
Fomin, Fedor V.
Lokshtanov, Daniel
Mnich, Matthias
Saurabh, Saket
Editor(s):
Iliopoulos, Costas S.
F. Smyth, William
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dblp
Not MPII Editor(s):
Iliopoulos, Costas S.
F. Smyth, William
BibTeX cite key*:
FernauFominLokshtanovMnichPhilipSaurabh2010
Title, Booktitle
Title*:
Ranking and Drawing in Subexponential Time
oscm-kemeny.pdf (445.15 KB)
Booktitle*:
Combinatorial Algorithms - 21st International Workshop, IWOCA 2010, London, UK, July 26-28, 2010, Revised Selected Papers
Event, URLs
Conference URL::
http://www.iwoca.org/iwoca2010/
Downloading URL:
http://www.springerlink.com/content/q36576727026h272/fulltext.pdf
Event Address*:
London, United Kingdom
Language:
English
Event Date*
(no longer used):
Organization:
Event Start Date:
26 July 2010
Event End Date:
28 July 2010
Publisher
Name*:
Springer
URL:
http://www.springer.com
Address*:
Berlin
Type:
Revised Selected Papers
Vol, No, Year, pp.
Series:
Lecture Notes in Computer Science
Volume:
6460
Number:
Month:
Pages:
Year*:
2011
VG Wort Pages:
ISBN/ISSN:
978-3-642-19221-0
Sequence Number:
DOI:
10.1007/978-3-642-19222-7_34
Note, Abstract, ©
(LaTeX) Abstract:
In this paper we obtain parameterized subexponential-time
algorithms for \kaggLG{} (\kagg{}) --- a problem in social
choice theory --- and for \oscmLG{} (\oscm{}) -- a problem in
graph drawing (see the introduction for definitions). These
algorithms run in time $\Oh^{*}(2^{\Oh(\sqrt{k}\log k)})$, where
$k$ is the parameter, and significantly improve the previous
best algorithms with running times $\Oh^{*}(1.403^k)$ and
$\Oh^{*}(1.4656^k)$, respectively. We also study natural
``above-guarantee'' versions of these problems and show them to
be fixed parameter tractable. In fact, we show that the
above-guarantee versions of these problems are equivalent to a
weighted variant of {\sc $p$-Directed Feedback Arc Set}. Our
results for the above-guarantee version of \kagg{} reveal an
interesting contrast. We show that when the number of ``votes''
in the input to \kagg{} is {\em odd} the above guarantee version
can still be solved in time $O^{*}(2^{\Oh(\sqrt{k}\log k)})$,
while if it is {\em even} then the problem cannot have a
subexponential time algorithm unless
the exponential time hypothesis fails (equivalently, unless FPT$=$M[$1$]).
URL for the Abstract:
http://www.springerlink.com/content/q36576727026h272/
Keywords:
Kemeny Aggregation, One-Sided Crossing Minimization, Parameterized Complexity, Subexponential-time Algorithms, Social Choice Theory, Graph Drawing, Directed Feedback Arc Set
Copyright Message:
Copyright Springer-Verlag Berlin Heidelberg 2011. This work is subject to copyright. All rights are reserved, whether the whole or part of the material is
concerned, specifically the rights of translation, reprinting, re-use of illustrations, recitation, broadcasting, reproduction on microfilms or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965,
in its current version, and permission for use must always be obtained from Springer. Violations are liable to prosecution under the German Copyright Law.

Published in the Proceedings of IWOCA 2010, London, United Kingdom, July 26-28, 2010. Lecture Notes in Computer Science, Volume 6460. The original publication is available at www.springerlink.com : http://www.springerlink.com/content/q36576727026h272/
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{FernauFominLokshtanovMnichPhilipSaurabh2010,
AUTHOR = {Fernau, Henning and Fomin, Fedor V. and Lokshtanov, Daniel and Mnich, Matthias and Philip, Geevarghese and Saurabh, Saket},
EDITOR = {Iliopoulos, Costas S. and F. Smyth, William},
TITLE = {Ranking and Drawing in Subexponential Time},
BOOKTITLE = {Combinatorial Algorithms - 21st International Workshop, IWOCA 2010, London, UK, July 26-28, 2010, Revised Selected Papers},
PUBLISHER = {Springer},
YEAR = {2011},
TYPE = {Revised Selected Papers},
VOLUME = {6460},
SERIES = {Lecture Notes in Computer Science},
ADDRESS = {London, United Kingdom},
ISBN = {978-3-642-19221-0},
DOI = {10.1007/978-3-642-19222-7_34},
}


Entry last modified by Stephanie Müller, 07/08/2014
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Created
04/21/2012 05:14:14 PM
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Editor
Stephanie Müller
Geevarghese Philip


Edit Date
22.05.2014 09:04:05
04/21/2012 05:14:14 PM


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