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OSN
2008
109views more  OSN 2008»
15 years 6 months ago
A non-competing hybrid optical burst switch architecture for QoS differentiation
In this paper, we present a new hybrid optical burst switch architecture (HOBS) that takes advantage of the pre-transmission idle time during lightpath establishment. In dynamic c...
Kyriakos Vlachos, Kostas Ramantas
CJ
2004
119views more  CJ 2004»
15 years 6 months ago
Building Footprint Simplification Techniques and Their Effects on Radio Propagation Predictions
Building footprint simplification is of critical importance to radio propagation predictions in wireless communication systems as the prediction time is closely related to the num...
Zhongqiang Chen, Alex Delis, Henry L. Bertoni
RSA
2000
170views more  RSA 2000»
15 years 6 months ago
Delayed path coupling and generating random permutations
We analyze various stochastic processes for generating permutations almost uniformly at random in distributed and parallel systems. All our protocols are simple, elegant and are b...
Artur Czumaj, Miroslaw Kutylowski
PVLDB
2008
126views more  PVLDB 2008»
15 years 6 months ago
Parallelizing query optimization
Many commercial RDBMSs employ cost-based query optimization exploiting dynamic programming (DP) to efficiently generate the optimal query execution plan. However, optimization tim...
Wook-Shin Han, Wooseong Kwak, Jinsoo Lee, Guy M. L...
STACS
2010
Springer
16 years 1 months ago
Beyond Bidimensionality: Parameterized Subexponential Algorithms on Directed Graphs
In 2000 Alber et al. [SWAT 2000 ] obtained the first parameterized subexponential algorithm on undirected planar graphs by showing that k-DOMINATING SET is solvable in time 2O( ...
Frederic Dorn, Fedor V. Fomin, Daniel Lokshtanov, ...