276 search results - page 14 / 56 » Querying Temporal Databases Using Controlled Natural Languag... |
FROCOS
2011
Springer
12 years 7 months ago
2011
Springer
Temporal data models have been used to describe how data can evolve in the context of temporal databases. Both the Extended Entity-Relationship (EER) model and the Unified Modelli...
WISE
2000
Springer
14 years 2 days ago
2000
Springer
In this paper, we present a web-based architecture of a spatiotemporal video data management system, which can accommodate a wide range of activities by various types of users. Be...
W3C
1998
13 years 9 months ago
1998
This paper discusses the use of XML in conjunction with a variety of repositories and database systems, and outlines some of the requirements for an effective query language. Many...
ICDM
2007
IEEE
14 years 2 months ago
2007
IEEE
Data security is a critical issue for many organizations. Sensitive data must be protected from both inside and outside attackers. Access control policies and related mechanisms h...
TIME
2003
IEEE
14 years 29 days ago
2003
IEEE
In bitemporal databases, current facts and transaction states are modelled using a special value to represent the current time (such as a minimum or maximum timestamp or NULL). Pr...