237 search results - page 43 / 48 » Querying RDF Data from a Graph Database Perspective |
TCSV
2002
13 years 7 months ago
2002
Video query by semantic keywords is one of the most challenging research issues in video data management. To go beyond low-level similarity and access video data content by semanti...
ICDE
1998
IEEE
14 years 8 months ago
1998
IEEE
We have a large database consisting of sales transactions. We investigate the problem of online mining of association rules in this large database. We show how to preprocess the d...
RSCTC
1998
Springer
13 years 11 months ago
1998
Springer
Abstract. Institutional databases can be instrumental in understanding a business process, but additional data may broaden the empirical perspective on the investigated process. We...
CCS
2007
ACM
14 years 1 months ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
ICDT
2010
ACM
14 years 10 days ago
2010
ACM
We examine schema mappings from a type-theoretic perspective and aim to facilitate and formalize the reuse of mappings. Starting with the mapping language of Clio, we present a ty...