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WAW
2007
Springer
113views Algorithms» more  WAW 2007»
15 years 3 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 3 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»
14 years 9 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 4 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 3 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...