723 search results - page 138 / 145 » On the hyperbolicity constant in graphs |
203
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FOCS
2008
IEEE
16 years 1 months ago
2008
IEEE
We prove that approximating the Max Acyclic Subgraph problem within a factor better than 1/2 is Unique-Games hard. Specifically, for every constant ε > 0 the following holds:...
175
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FOCS
2007
IEEE
16 years 29 days ago
2007
IEEE
Submodular maximization generalizes many important problems including Max Cut in directed/undirected graphs and hypergraphs, certain constraint satisfaction problems and maximum f...
158
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LADC
2007
Springer
16 years 23 days ago
2007
Springer
A distributed dynamic system is a fully distributed system subject to a continual arrival/departure of the entities defining the system. Another characterizing dimension of these ...
190
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ICPP
2006
IEEE
16 years 20 days ago
2006
IEEE
Message passing via MPI is widely used in singleprogram, multiple-data (SPMD) parallel programs. Existing data-flow frameworks do not model the semantics of message-passing SPMD ...
196
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WIOPT
2006
IEEE
16 years 19 days ago
2006
IEEE
— This paper develops a novel color-based broadcast scheme for wireless ad hoc networks where each forwarding of the broadcast message is assigned a color from a given pool of co...