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» Lower bounds for dynamic connectivity
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IPPS
1997
IEEE
14 years 3 days ago
Cyclic Networks: A Family of Versatile Fixed-Degree Interconnection Architectures
In this paper, we propose a new family of interconnection networks, called cyclic networks (CNs), in which an intercluster connection is defined on a set of nodes whose addresses...
Chi-Hsiang Yeh, Behrooz Parhami
AAAI
2008
13 years 10 months ago
Phase Transitions and Complexity of Weighted Satisfiability and Other Intractable Parameterized Problems
The study of random instances of NP complete and coNP complete problems has had much impact on our understanding of the nature of hard problems. In this work, we initiate an effor...
Yong Gao
SODA
2008
ACM
128views Algorithms» more  SODA 2008»
13 years 9 months ago
Analysis of greedy approximations with nonsubmodular potential functions
In this paper, we present two techniques to analyze greedy approximation with nonsubmodular functions restricted submodularity and shifted submodularity. As an application of the ...
Ding-Zhu Du, Ronald L. Graham, Panos M. Pardalos, ...
AHSWN
2008
92views more  AHSWN 2008»
13 years 8 months ago
The (k, l) Coredian Tree for Ad Hoc Networks
In this paper, we present a new efficient strategy for constructing a wireless tree network containing n nodes of diameter while satisfying the QoS requirements such as bandwidth...
Amit Dvir, Michael Segal
ALGORITHMICA
2008
111views more  ALGORITHMICA 2008»
13 years 8 months ago
Fixed-Parameter Complexity of Minimum Profile Problems
The profile of a graph is an integer-valued parameter defined via vertex orderings; it is known that the profile of a graph equals the smallest number of edges of an interval supe...
Gregory Gutin, Stefan Szeider, Anders Yeo