991 search results - page 96 / 199 » The query-flow graph: model and applications |
KDD
2008
ACM
14 years 11 months ago
2008
ACM
We analyze a massive social network, gathered from the records of a large mobile phone operator, with more than a million users and tens of millions of calls. We examine the distr...
STOC
2005
ACM
14 years 11 months ago
2005
ACM
We introduce a new graph parameter, called the Grothendieck constant of a graph G = (V, E), which is defined as the least constant K such that for every A : E R, sup f:V S|V |-1 ...
ISAAC
2009
Springer
14 years 5 months ago
2009
Springer
We give a simple framework which is an alternative to the celebrated and widely used shifting strategy of Hochbaum and Maass [J. ACM, 1985] which has yielded efficient algorithms ...
SIGIR
2011
ACM
13 years 1 months ago
2011
ACM
We study a novel problem of social context summarization for Web documents. Traditional summarization research has focused on extracting informative sentences from standard docume...
GLOBECOM
2009
IEEE
14 years 5 months ago
2009
IEEE
Abstract—The barrier coverage model was proposed for applications in which sensors are deployed for intrusion detection. In this paper, we study a strong barrier coverage problem...