44 search results - page 3 / 9 » Reasoning over Conceptual Schemas and Queries in Temporal Da... |
107
Voted
PVLDB
2008
14 years 9 months ago
2008
The old problem of managing the history of database information is now made more urgent and complex by fast spreading web information systems, such as Wikipedia. Our PRIMA system ...
172
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SIGMOD
2009
ACM
15 years 10 months ago
2009
ACM
Schema evolution poses serious challenges in historical data management. Traditionally historical data have been archived either by (i) migrating them into the current schema vers...
96
Voted
TIME
2007
IEEE
15 years 4 months ago
2007
IEEE
Transaction-time temporal databases and query languages provide a solid framework for analyzing properties of queries over data streams. In this paper we focus on issues connected...
ER
2004
Springer
15 years 3 months ago
2004
Springer
Abstract. As several mature implementations of data warehousing systems are fully operational, a crucial role in preserving their up-to-dateness is played by the ability to manage ...
94
Voted
ER
2008
Springer
15 years 19 hour ago
2008
Springer
Modern information systems, and web information systems in particular, are faced with frequent database schema changes, which generate the necessity to manage them and preserve the...