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» Approximating the Minimum Weight Triangulation
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FOCS
2006
IEEE
13 years 11 months ago
Lower Bounds for Additive Spanners, Emulators, and More
An additive spanner of an unweighted undirected graph G with distortion d is a subgraph H such that for any two vertices u, v ∈ G, we have δH(u, v) ≤ δG(u, v) + d. For every...
David P. Woodruff
GLOBECOM
2009
IEEE
14 years 7 days ago
Emulation of Optical PIFO Buffers
—With recent advances in optical technology, we are closer to building all-optical routers than ever before. A major problem in this area, however, is the lack of all-optical mem...
Houman Rastegarfar, Monia Ghobadi, Yashar Ganjali
MOBICOM
2009
ACM
13 years 12 months ago
Lifetime and coverage guarantees through distributed coordinate-free sensor activation
Wireless Sensor Networks are emerging as a key sensing technology, with diverse military and civilian applications. In these networks, a large number of sensors perform distribute...
Gaurav S. Kasbekar, Yigal Bejerano, Saswati Sarkar
WADS
2007
Springer
180views Algorithms» more  WADS 2007»
13 years 11 months ago
Spanners for Geometric Intersection Graphs
A ball graph is an intersection graph of a set of balls with arbitrary radii. Given a real number t > 1, we say that a subgraph G′ of a graph G is a t-spanner of G, if for eve...
Martin Fürer, Shiva Prasad Kasiviswanathan
WABI
2005
Springer
120views Bioinformatics» more  WABI 2005»
13 years 11 months ago
Multiple Structural RNA Alignment with Lagrangian Relaxation
In contrast to proteins, many classes of functionally related RNA molecules show a rather weak sequence conservation but instead a fairly well conserved secondary structure. Hence ...
Markus Bauer, Gunnar W. Klau, Knut Reinert