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ESA
1998
Springer
108views Algorithms» more  ESA 1998»
15 years 1 months ago
Finding an Optimal Path without Growing the Tree
In this paper, we study a class of optimal path problems with the following phenomenon: The space complexity of the algorithms for reporting the lengths of single-source optimal pa...
Danny Z. Chen, Ovidiu Daescu, Xiaobo Hu, Jinhui Xu
COCOON
2006
Springer
15 years 1 months ago
Approximating Min-Max (Regret) Versions of Some Polynomial Problems
Abstract. While the complexity of min-max and min-max regret versions of most classical combinatorial optimization problems has been thoroughly investigated, there are very few stu...
Hassene Aissi, Cristina Bazgan, Daniel Vanderpoote...
TAMC
2007
Springer
15 years 3 months ago
Approximately Optimal Trees for Group Key Management with Batch Updates
Abstract. We investigate the group key management problem for broadcasting applications. Previous work showed that, in handling key updates, batch rekeying can be more cost-effect...
Minming Li, Ze Feng, Ronald L. Graham, Frances F. ...
CAAN
2006
Springer
15 years 1 months ago
Optimal Gossiping with Unit Size Messages in Known Topology Radio Networks
Gossiping is a communication primitive where each node of a network possesses a unique message that is to be communicated to all other nodes in the network. We study the gossiping ...
Fredrik Manne, Qin Xin
66
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FOCS
2008
IEEE
15 years 4 months ago
Computing the Tutte Polynomial in Vertex-Exponential Time
The deletion–contraction algorithm is perhaps the most popular method for computing a host of fundamental graph invariants such as the chromatic, flow, and reliability polynomi...
Andreas Björklund, Thore Husfeldt, Petteri Ka...