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WAW
2007
Springer
113views Algorithms» more  WAW 2007»
15 years 10 months ago
Local Computation of PageRank Contributions
Motivated by the problem of detecting link-spam, we consider the following graph-theoretic primitive: Given a webgraph G, a vertex v in G, and a parameter δ ∈ (0, 1), compute th...
Reid Andersen, Christian Borgs, Jennifer T. Chayes...
ESA
2007
Springer
115views Algorithms» more  ESA 2007»
15 years 10 months ago
Approximation of Partial Capacitated Vertex Cover
We study the partial capacitated vertex cover problem (pcvc) in which the input consists of a graph G and a covering requirement L. Each edge e in G is associated with a demand (o...
Reuven Bar-Yehuda, Guy Flysher, Julián Mest...
COMBINATORICA
1998
94views more  COMBINATORICA 1998»
15 years 3 months ago
The Shannon Capacity of a Union
For an undirected graph G = (V, E), let Gn denote the graph whose vertex set is V n in which two distinct vertices (u1, u2, . . . , un) and (v1, v2, . . . , vn) are adjacent iff ...
Noga Alon
ICC
2009
IEEE
130views Communications» more  ICC 2009»
15 years 10 months ago
Repeater-Assisted Capacity Enhancement (RACE) for MIMO Links in a Line-of-Sight Environment
— A single on-frequency, full duplex wireless repeater is considered for enhancing the capacity of a long-distance 2x2 multiple-input multiple-output (MIMO) wireless link with a ...
Brett T. Walkenhorst, Mary Ann Ingram
CVPR
2010
IEEE
15 years 9 months ago
Image Retrieval via Probabilistic Hypergraph Ranking
In this paper, we propose a new transductive learning framework for image retrieval, in which images are taken as vertices in a weighted hypergraph and the task of image search is...
Yuchi Huang, Qingshan Liu, Shaoting Zhang, Metaxas...