157 search results - page 21 / 32 » Incremental Evaluation of Datalog Queries |
EDBT
2009
ACM
14 years 15 days ago
2009
ACM
In a database system, disclosure of confidential private data may occur if users can put together the answers of past queries. Traditional access control mechanisms cannot guard a...
CIKM
2005
Springer
14 years 2 months ago
2005
Springer
We examine issues in the design of fully dynamic information retrieval systems with support for instantaneous document insertions and deletions. We present one such system and dis...
SIGMOD
2001
ACM
14 years 8 months ago
2001
ACM
Materialized views have been found to be very effective at speeding up queries, and are increasingly being supported by commercial databases and data warehouse systems. However, w...
ICDE
2010
IEEE
14 years 8 months ago
2010
IEEE
Research on spatial network databases has so far considered that there is a single cost value associated with each road segment of the network. In most real-world situations, howev...
ICNP
2005
IEEE
14 years 2 months ago
2005
IEEE
In unstructured peer-to-peer networks, controlled flooding aims at locating an item at the minimum message cost. Dynamic querying is a new controlled flooding technique. While i...