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TON
2010
196views more  TON 2010»
14 years 8 months ago
Fast Recovery From Dual-Link or Single-Node Failures in IP Networks Using Tunneling
Abstract--This paper develops novel mechanisms for recovering from failures in IP networks with proactive backup path calculations and IP tunneling. The primary scheme provides res...
Shrinivasa Kini, S. Ramasubramanian, Amund Kvalbei...
WADS
2009
Springer
226views Algorithms» more  WADS 2009»
15 years 8 months ago
Online Priority Steiner Tree Problems
Abstract. A central issue in the design of modern communication networks is the provision of Quality-of-Service (QoS) guarantees at the presence of heterogeneous users. For instanc...
Spyros Angelopoulos
STOC
1996
ACM
115views Algorithms» more  STOC 1996»
15 years 5 months ago
Minimum Cuts in Near-Linear Time
We significantly improve known time bounds for solving the minimum cut problem on undirected graphs. We use a "semiduality" between minimum cuts and maximum spanning tree...
David R. Karger
89
Voted
SODA
2003
ACM
115views Algorithms» more  SODA 2003»
15 years 2 months ago
Random walks on the vertices of transportation polytopes with constant number of sources
We consider the problem of uniformly sampling a vertex of a transportation polytope with m sources and n destinations, where m is a constant. We analyse a natural random walk on t...
Mary Cryan, Martin E. Dyer, Haiko Müller, Lee...
STOC
2001
ACM
132views Algorithms» more  STOC 2001»
16 years 1 months ago
Edge isoperimetry and rapid mixing on matroids and geometric Markov chains
We show how to bound the mixing time and log-Sobolev constants of Markov chains by bounding the edge-isoperimetry of their underlying graphs. To do this we use two recent techniqu...
Ravi Montenegro, Jung-Bae Son