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@InProceedings
Beitrag in Tagungsband, Workshop

Author, Editor
Author(s):
Bredereck, Robert
Nichterlein, Andr{\'e}
Niedermeier, Rolf
Philip, Geevarghese
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dblp
dblp
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Not MPG Author(s):
Bredereck, Robert
Nichterlein, Andr{\'e}
Niedermeier, Rolf
Editor(s):
Owe, Olaf
Steffen, Martin
Telle, Jan Arne
dblp
dblp
dblp
Not MPII Editor(s):
Owe, Olaf
Steffen, Martin
Telle, Jan Arne
BibTeX cite key*:
BredereckNichterleinNiedermeierPhilip2011b
Title, Booktitle
Title*:
The Effect of Homogeneity on the Complexity of $k$-Anonymity
anon.pdf (600.06 KB)
Booktitle*:
Fundamentals of Computation Theory - 18th International Symposium, FCT 2011, Oslo, Norway, August 22-25, 2011. Proceedings
Event, URLs
Conference URL::
http://fct11.ifi.uio.no/
Downloading URL:
http://www.springerlink.com/content/w65771qj7n672v11/fulltext.pdf
Event Address*:
Oslo, Norway
Language:
English
Event Date*
(no longer used):
Organization:
Event Start Date:
22 August 2011
Event End Date:
25 August 2011
Publisher
Name*:
Springer
URL:
http://www.springer.com
Address*:
Berlin
Type:
Vol, No, Year, pp.
Series:
Lecture Notes in Computer Science
Volume:
6914
Number:
Month:
Pages:
53-64
Year*:
2011
VG Wort Pages:
ISBN/ISSN:
Sequence Number:
DOI:
978-3-642-22952-7
Note, Abstract, ©
(LaTeX) Abstract:
The NP-hard \textsc{$k$-Anonymity}
problem asks, given an~$n \times m$-matrix~$M$ over a
fixed alphabet and an integer~$s>0$, whether~$M$ can be made
$k$-anonymous by suppressing (blanking out) at most~$s$
entries. A matrix~$M$ is said to be $k$-anonymous if for each
row~$r$ in~$M$ there are at least~$k-1$ other rows in~$M$ which
are identical to~$r$. Complementing previous work, we introduce two new
``data-driven'' parameterizations for \textsc{$k$-Anonymity}---the number~$\tin$ of
different input rows and the number~$\tout$ of different output rows---both
modeling aspects of data homogeneity. We show that \textsc{$k$-Anonymity}
is fixed-parameter tractable for the parameter~$\tin$, and it is
NP-hard even for~$\tout = 2$ and alphabet size four.
Notably, our fixed-parameter tractability result implies that
\textsc{$k$-Anonymity} can be solved in \emph{linear time} when~$\tin$ is a
constant. Our results also extend to some interesting
generalizations of \textsc{$k$-Anonymity}.
URL for the Abstract:
http://www.springerlink.com/content/w65771qj7n672v11/
Keywords:
Parameterized Algorithms, $k$-Anonymity
Copyright Message:
Copyright Springer Berlin 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 FCT 2011, Oslo, Norway, August 22-25, 2011. Lecture Notes in Computer Science, Volume 6914. The original publication is available at www.springerlink.com : http://www.springerlink.com/content/w65771qj7n672v11/
Download
Access Level:
Public

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



BibTeX Entry:

@INPROCEEDINGS{BredereckNichterleinNiedermeierPhilip2011b,
AUTHOR = {Bredereck, Robert and Nichterlein, Andr{\'e} and Niedermeier, Rolf and Philip, Geevarghese},
EDITOR = {Owe, Olaf and Steffen, Martin and Telle, Jan Arne},
TITLE = {The Effect of Homogeneity on the Complexity of $k$-Anonymity},
BOOKTITLE = {Fundamentals of Computation Theory - 18th International Symposium, FCT 2011, Oslo, Norway, August 22-25, 2011. Proceedings},
PUBLISHER = {Springer},
YEAR = {2011},
VOLUME = {6914},
PAGES = {53--64},
SERIES = {Lecture Notes in Computer Science},
ADDRESS = {Oslo, Norway},
DOI = {978-3-642-22952-7},
}


Entry last modified by Geevarghese Philip, 07/08/2014
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Created
04/22/2012 03:12:49 PM
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Editor
Geevarghese Philip
Geevarghese Philip


Edit Date
12/08/2012 04:41:16 AM
04/22/2012 03:12:49 PM



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