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FCS
2006
13 years 6 months ago
Negative-Weight Cycle Algorithms
The problem of finding a negative cycle in a weighted, directed graph is discussed here. First the algorithm for printing out a negative cycle reachable from the source s, with th...
Xiuzhen Huang
STOC
2007
ACM
98views Algorithms» more  STOC 2007»
14 years 5 months ago
Negative weights make adversaries stronger
The quantum adversary method is one of the most successful techniques for proving lower bounds on quantum query complexity. It gives optimal lower bounds for many problems, has ap...
Peter Høyer, Troy Lee, Robert Spalek
COMGEO
2012
ACM
12 years 16 days ago
Algorithms for the edge-width of an embedded graph
Let G be an unweighted graph of complexity n embedded in a surface of genus g, orientable or not. We describe improved algorithms to compute a shortest non-contractible and a shor...
Sergio Cabello, Éric Colin de Verdiè...
ADHOCNOW
2011
Springer
12 years 8 months ago
Joint Duty Cycle Scheduling, Resource Allocation and Multi-constrained QoS Routing Algorithm
Wireless mesh sensor networks (WMSNs) have recently gained a lot of interest due to their communication capability to support various applications with different Quality of Service...
Jamila Ben Slimane, Yeqiong Song, Anis Koubaa, Mou...
ICC
2011
IEEE
239views Communications» more  ICC 2011»
12 years 4 months ago
The Insights of DV-Based Localization Algorithms in the Wireless Sensor Networks with Duty-Cycled and Radio Irregular Sensors
—Location information of nodes is the basis for many applications in wireless sensor networks (WSNs). However, most previous localization methods make the unrealistic assumption:...
Yuanfang Chen, Lei Shu, Mingchu Li, Ziqi Fan, Lei ...