Sciweavers

121 search results - page 20 / 25
» Optimal Group Manipulation in Facility Location Problems
Sort
View
TPDS
1998
92views more  TPDS 1998»
14 years 9 months ago
An Efficient Algorithm for Row Minima Computations on Basic Reconfigurable Meshes
—A matrix A of size m œ n containing items from a totally ordered universe is termed monotone if, for every i, j, 1 ‹ i < j ‹ m, the minimum value in row j lies below or to...
Koji Nakano, Stephan Olariu
CIAC
2003
Springer
98views Algorithms» more  CIAC 2003»
15 years 2 months ago
Improving Customer Proximity to Railway Stations
Abstract. We consider problems of (new) station placement along (existing) railway tracks, so as to increase the number of users. We prove that, in spite of the NP-hardness for the...
Evangelos Kranakis, Paolo Penna, Konrad Schlude, D...
STOC
2009
ACM
163views Algorithms» more  STOC 2009»
15 years 10 months ago
Non-monotone submodular maximization under matroid and knapsack constraints
Submodular function maximization is a central problem in combinatorial optimization, generalizing many important problems including Max Cut in directed/undirected graphs and in hy...
Jon Lee, Vahab S. Mirrokni, Viswanath Nagarajan, M...
DCOSS
2007
Springer
15 years 3 months ago
A Connectivity Based Partition Approach for Node Scheduling in Sensor Networks
This paper presents a Connectivity based Partition Approach (CPA) to reduce the energy consumption of a sensor network by sleep scheduling among sensor nodes. CPA partitions sensor...
Yong Ding, Chen Wang, Li Xiao
IDMS
2000
Springer
128views Multimedia» more  IDMS 2000»
15 years 1 months ago
Fast and Optimal Multicast-Server Selection Based on Receivers' Preference
Abstract. In this paper, we propose static and dynamic server selection techniques for multicast receivers who receive multiple streams from replicated servers. In the proposed sta...
Akihito Hiromori, Hirozumi Yamaguchi, Keiichi Yasu...