ICALP
2005
Springer
14 years 5 months ago
2005
Springer
Given a graph G = (V, E) and positive integral vertex weights w : V → N, the max-coloring problem seeks to find a proper vertex coloring of G whose color classes C1, C2, . . . ,...
FCT
2005
Springer
14 years 5 months ago
2005
Springer
Block sorting is used in connection with optical character recognition (OCR). Recent work has focused on finding good strategies which perform well in practice. Block sorting is N...
ICNP
2006
IEEE
14 years 5 months ago
2006
IEEE
—Data caching can significantly improve the efficiency of information access in a wireless ad hoc network by reducing the access latency and bandwidth usage. However, designing e...
FOCS
2006
IEEE
14 years 5 months ago
2006
IEEE
We consider approximation algorithms for non-uniform buy-at-bulk network design problems. The first nontrivial approximation algorithm for this problem is due to Charikar and Kar...
WAW
2007
Springer
14 years 5 months ago
2007
Springer
Betweenness is a centrality measure based on shortest paths, widely used in complex network analysis. It is computationally-expensive to exactly determine betweenness; currently th...
WAOA
2007
Springer
14 years 5 months ago
2007
Springer
We consider ranking and clustering problems related to the aggregation of inconsistent information. Ailon, Charikar, and Newman [1] proposed randomized constant factor approximatio...
ESA
2007
Springer
14 years 5 months ago
2007
Springer
Given a (directed or undirected) graph with edge costs, the power of a node is the maximum cost of an edge leaving it, and the power of the graph is the sum of the powers of its n...
SECON
2007
IEEE
14 years 5 months ago
2007
IEEE
Base station location has significant impact on network lifetime performance for a sensor network. For a multihop sensor network, this problem is particular challenging as we need ...
FOCS
2007
IEEE
14 years 5 months ago
2007
IEEE
We continue the recent line of work on the connection between semidefinite programming-based approximation algorithms and the Unique Games Conjecture. Given any boolean 2-CSP (or...
INFOCOM
2008
IEEE
14 years 6 months ago
2008
IEEE
—IEEE 802.11 WiFi equipment based wireless mesh networks have recently been proposed as an inexpensive approach to connect far-flung rural areas. Such networks are built using h...