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COCOA
2009
Springer
14 years 3 months ago
An Effective Hybrid Algorithm for the Circles and Spheres Packing Problems
stract to be announcedPlenary session 09:00-10:00 Panos M, Pardalos, University of Florida, USA Tea Break 10:00-10:20 At the 1st floor 10:20-10:45 Polynomial Approximation Schemes ...
Jingfa Liu, Yonglei Yao, Yu Zheng, Huantong Geng, ...
COCOA
2009
Springer
14 years 4 months ago
Positive Influence Dominating Set in Online Social Networks
Online social network has developed significantly in recent years as a medium of communicating, sharing and disseminating information and spreading influence. Most of current resea...
Feng Wang 0002, Erika Camacho, Kuai Xu
COCOA
2009
Springer
14 years 4 months ago
Computing the Transitive Closure of a Union of Affine Integer Tuple Relations
Abstract. This paper proposes a method to compute the transitive closure of a union of affine relations on integer tuples. Within Presburger arithmetics, complete algorithms to com...
Anna Beletska, Denis Barthou, Wlodzimierz Bielecki...
COCOA
2009
Springer
14 years 5 months ago
Linear Coherent Bi-cluster Discovery via Line Detection and Sample Majority Voting
Discovering groups of genes that share common expression profiles is an important problem in DNA microarray analysis. Unfortunately, standard bi-clustering algorithms often fail t...
Yi Shi, Zhipeng Cai, Guohui Lin, Dale Schuurmans
COCOA
2009
Springer
14 years 5 months ago
Variable-Size Rectangle Covering
Abstract. In wireless communication networks, optimal use of the directional antenna is very important. The directional antenna coverage (DAC) problem is to cover all clients with ...
Francis Y. L. Chin, Hing-Fung Ting, Yong Zhang
COCOA
2009
Springer
14 years 5 months ago
On Open Rectangle-of-Influence Drawings of Planar Graphs
: Under water sensor network is an important research direction in computer science. There are many interesting optimization problems regarding its design, routing and applications...
Huaming Zhang, Milind Vaidya
COCOA
2009
Springer
14 years 5 months ago
DNA Library Screening, Pooling Design and Unitary Spaces
Abstract. Pooling design is an important research topic in bioinformatics due to its wide applications in molecular biology, especially DNA library screening. In this paper, with u...
Suogang Gao, Zengti Li, Jiangchen Yu, Xiaofeng Gao...
COCOA
2009
Springer
14 years 7 months ago
Roulette Wheel Graph Colouring for Solving Examination Timetabling Problems
This work presents a simple graph based heuristic that employs a roulette wheel selection mechanism for solving examination timetabling problems. We arrange exams in non-increasing...
Nasser R. Sabar, Masri Ayob, Graham Kendall, Rong ...
COCOA
2009
Springer
14 years 7 months ago
A PTAS for Node-Weighted Steiner Tree in Unit Disk Graphs
Abstract. The node-weighted Steiner tree problem is a variation of classical Steiner minimum tree problem. Given a graph G = (V, E) with node weight function C : V → R+ and a sub...
Xianyue Li, Xiao-Hua Xu, Feng Zou, Hongwei Du, Pen...
COCOA
2009
Springer
14 years 7 months ago
Recoverable Robust Timetables on Trees
In the context of scheduling and timetabling, we study a challenging combinatorial problem which is very interesting for both practical and theoretical points of view. The motivati...
Gianlorenzo D'Angelo, Gabriele Di Stefano, Alfredo...