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CBMS
2006
IEEE
16 years 1 months ago
An Ontology-Driven Mediator for Querying Time-Oriented Biomedical Data
— Most biomedical research databases contain considerable amounts of time-oriented data. However, temporal knowledge about the contextual meaning of such data is not usually repr...
Martin J. O'Connor, Ravi Shankar, Amar K. Das
PCI
2005
Springer
16 years 19 days ago
Closest Pair Queries with Spatial Constraints
Abstract. Given two datasets DA and DB the closest-pair query (CPQ) retrieves the pair (a,b), where a ∈ DA and b ∈ DB, having the smallest distance between all pairs of objects...
Apostolos N. Papadopoulos, Alexandros Nanopoulos, ...
CIKM
2004
Springer
16 years 16 days ago
QFilter: fine-grained run-time XML access control via NFA-based query rewriting
At present, most of the state-of-the-art solutions for XML access controls are either (1) document-level access control techniques that are too limited to support fine-grained sec...
Bo Luo, Dongwon Lee, Wang-Chien Lee, Peng Liu
VLDB
2004
ACM
134views Database» more  VLDB 2004»
16 years 15 days ago
A Privacy-Preserving Index for Range Queries
Database outsourcing is an emerging data management paradigm which has the potential to transform the IT operations of corporations. In this paper we address privacy threats in da...
Bijit Hore, Sharad Mehrotra, Gene Tsudik
CAISE
2003
Springer
16 years 11 days ago
Processing Queries in a Large Peer-to-Peer System
While current search engines seem to easily handle the size of the data available on the Internet, they cannot provide fresh results. The most up-to-date data always resides on the...
Leonidas Galanis, Yuan Wang, Shawn R. Jeffery, Dav...