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SAC
2008
ACM
15 years 6 months ago
Selectivity estimation in spatial networks
Modern applications requiring spatial network processing pose many interesting query optimization challenges. In many cases, query processing depends on the corresponding graph si...
Eleftherios Tiakas, Apostolos N. Papadopoulos, Ale...
CIKM
2010
Springer
15 years 5 months ago
Understanding retweeting behaviors in social networks
Retweeting is an important action (behavior) on Twitter, indicating the behavior that users re-post microblogs of their friends. While much work has been conducted for mining text...
Zi Yang, Jingyi Guo, Keke Cai, Jie Tang, Juanzi Li...
CORR
2010
Springer
107views Education» more  CORR 2010»
15 years 5 months ago
Maximum Betweenness Centrality: Approximability and Tractable Cases
The Maximum Betweenness Centrality problem (MBC) can be defined as follows. Given a graph find a k-element node set C that maximizes the probability of detecting communication be...
Martin Fink, Joachim Spoerhase
IGPL
2010
109views more  IGPL 2010»
15 years 5 months ago
Deductive coherence and norm adoption
This paper is a contribution to the formalisation of Thagard’s coherence theory. The term coherence is defined as the quality or the state of cohering, especially a logical, ord...
Sindhu Joseph, Carles Sierra, W. Marco Schorlemmer...
INFOCOM
2010
IEEE
15 years 5 months ago
Random Walks on Digraphs: A Theoretical Framework for Estimating Transmission Costs in Wireless Routing
—In this paper we develop a unified theoretical framework for estimating various transmission costs of packet forwarding in wireless networks. Our framework can be applied to th...
Yanhua Li, Zhi-Li Zhang