60 search results - page 6 / 12 » k-Anonymity in Databases with Timestamped Data |
ICDE
2009
IEEE
15 years 18 days ago
2009
IEEE
Immortal DB is a transaction time database system that is built into a commercial database system rather than being layered on top. This enables it to have performance that is very...
TIME
2003
IEEE
14 years 4 months 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...
VLDB
2004
ACM
14 years 4 months ago
2004
ACM
We study the fundamental limitations of relational algebra (RA) and SQL in supporting sequence and stream queries, and present effective query language and data model enrichments ...
SIGMOD
2003
ACM
14 years 11 months ago
2003
ACM
Traditional databases store sets of relatively static records with no pre-defined notion of time, unless timestamp attributes are explicitly added. While this model adequately rep...
PODC
2006
ACM
14 years 4 months ago
2006
ACM
We study the problem of maintaining sketches of recent elements of a data stream. Motivated by applications involving network data, we consider streams that are asynchronous, in w...