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COCOA
2008
Springer
13 years 6 months ago
Computational Study on Dominating Set Problem of Planar Graphs
Abstract: Recently, there have been significant theoretical progresses towards fixed-parameter algorithms for the DOMINATING SET problem of planar graphs. It is known that the prob...
Marjan Marzban, Qian-Ping Gu, Xiaohua Jia
COCOA
2008
Springer
13 years 6 months ago
Elementary Approximation Algorithms for Prize Collecting Steiner Tree Problems
This paper deals with approximation algorithms for the prize collecting generalized Steiner forest problem, defined as follows. The input is an undirected graph G = (V, E), a colle...
Shai Gutner
COCOA
2008
Springer
13 years 6 months ago
A Parameterized Perspective on Packing Paths of Length Two
We study (vertex-disjoint) packings of paths of length two (i.e., of P2's) in graphs under a parameterized perspective. Starting from a maximal P2-packing P of size j we use e...
Henning Fernau, Daniel Raible
COCOA
2008
Springer
13 years 6 months ago
Protean Graphs with a Variety of Ranking Schemes
The World Wide Web may be viewed as a graph each of whose vertices corresponds to a static HTML web page, and each of whose edges corresponds to a hyperlink from one web page to an...
Pawel Pralat
COCOA
2008
Springer
13 years 6 months ago
Efficient Method for Periodic Task Scheduling with Storage Requirement Minimization
Abstract. In this paper, we study an efficient approximate integer linear programming formulation of the general problem of one-dimensional periodic task scheduling under storage r...
Karine Deschinkel, Sid Ahmed Ali Touati
COCOA
2008
Springer
13 years 6 months ago
New Algorithms for k-Center and Extensions
The problem of interest is covering a given point set with homothetic copies of several convex containers C1,...,Ck, while the objective is to minimize the maximum over the dilatat...
René Brandenberg, Lucia Roth
COCOA
2008
Springer
13 years 6 months ago
Optimal Movement of Mobile Sensors for Barrier Coverage of a Planar Region
Intrusion detection, area coverage and border surveillance are important applications of wireless sensor networks today. They can be (and are being) used to monitor large unprotec...
Binay K. Bhattacharya, B. Burmester, Yuzhuang Hu, ...
COCOA
2008
Springer
13 years 6 months ago
Parameterized Graph Editing with Chosen Vertex Degrees
We study the parameterized complexity of the following problem: is it possible to make a given graph r-regular by applying at most k elementary editing operations; the operations a...
Luke Mathieson, Stefan Szeider
COCOA
2008
Springer
13 years 6 months ago
Fixed-Parameter Tractability of Anonymizing Data by Suppressing Entries
A popular model for protecting privacy when person-specific data is released is k-anonymity. A dataset is k-anonymous if each record is identical to at least (k - 1) other records ...
Rhonda Chaytor, Patricia A. Evans, Todd Wareham
COCOA
2008
Springer
13 years 6 months ago
Polynomial Time Approximation Scheme for Connected Vertex Cover in Unit Disk Graph
Connected Vertex Cover Problem (CVC) is an NP-hard problem. The currently best known approximation algorithm for CVC has performance ration 2. This paper gives the first Polynomial...
Zhao Zhang, Xiaofeng Gao, Weili Wu