276 search results - page 49 / 56 » Querying Temporal Databases Using Controlled Natural Languag... |
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 ...
MIDDLEWARE
2007
Springer
14 years 1 months ago
2007
Springer
This paper is about a novel rule-based approach for reasoning about qualitative spatiotemporal relations among technology-rich autonomous objects, to which we refer to as artifact...
KDD
2007
ACM
14 years 8 months ago
2007
ACM
We briefly survey several privacy compromises in published datasets, some historical and some on paper. An inspection of these suggests that the problem lies with the nature of the...
HICSS
1999
IEEE
13 years 12 months ago
1999
IEEE
Typically, searching for information in a document collection amounts to refining a query and then scanning a large number of documents to determine their relevance. Active Summar...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
The nature of semistructured data in web collections is evolving. Increasingly, XML web documents (or documents exchanged via web services) are valid with regard to a schema, yet ...