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» Reconstruction for Models on Random Graphs
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FOCS
2009
IEEE
15 years 6 months ago
Convergence to Equilibrium in Local Interaction Games
— We study a simple game theoretic model for the spread of an innovation in a network. The diffusion of the innovation is modeled as the dynamics of a coordination game in which ...
Andrea Montanari, Amin Saberi
PAKDD
2010
ACM
179views Data Mining» more  PAKDD 2010»
15 years 4 months ago
Answer Diversification for Complex Question Answering on the Web
We present a novel graph ranking model to extract a diverse set of answers for complex questions via random walks over a negative-edge graph. We assign a negative sign to edge weig...
Palakorn Achananuparp, Xiaohua Hu, Tingting He, Ch...
CCS
2010
ACM
14 years 10 months ago
Designs to account for trust in social network-based sybil defenses
Social network-based Sybil defenses exploit the trust exhibited in social graphs to detect Sybil nodes that disrupt an algorithmic property (i.e., the fast mixing) in these graphs...
Abedelaziz Mohaisen, Nicholas Hopper, Yongdae Kim
TSP
2011
197views more  TSP 2011»
14 years 6 months ago
Group Object Structure and State Estimation With Evolving Networks and Monte Carlo Methods
—This paper proposes a technique for motion estimation of groups of targets based on evolving graph networks. The main novelty over alternative group tracking techniques stems fr...
Amadou Gning, Lyudmila Mihaylova, Simon Maskell, S...
DAGM
2007
Springer
15 years 6 months ago
Semi-supervised Tumor Detection in Magnetic Resonance Spectroscopic Images Using Discriminative Random Fields
Magnetic resonance spectral images provide information on metabolic processes and can thus be used for in vivo tumor diagnosis. However, each single spectrum has to be checked manu...
L. Görlitz, Bjoern H. Menze, M.-A. Weber, B. ...