52 search results - page 6 / 11 » On the preservation of monotonicity by extended mappings |
STOC
2007
ACM
14 years 7 months ago
2007
ACM
We prove and extend a conjecture of Kempe, Kleinberg, and Tardos (KKT) on the spread of influence in social networks. A social network can be represented by a directed graph where...
GLOBE
2009
Springer
13 years 11 months ago
2009
Springer
Abstract. We show how to specify and use the metadata for a virtual and relational data integration system under the local-as-view (LAV) approach. We use XML and RuleML for represe...
ICCS
2004
Springer
14 years 2 days ago
2004
Springer
We present an incremental tree editor based on algorithms for manipulating shape functions. The tree layout is hierarchical, left-to-right. Nodes of variable size and shape are sup...
GIS
2008
ACM
14 years 7 months ago
2008
ACM
In this paper, we follow the role-based access control (RBAC) approach and extend it to provide for the dynamic association of roles with users. In our framework, privileges assoc...
GEOINFORMATICA
1998
13 years 6 months ago
1998
ally related entity types, or classes, into higher level, more abstract types, as part of a hierarchical classi®cation scheme. graphy, generalization retains the notion of abstrac...