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EDBT
2004
ACM
145views Database» more  EDBT 2004»
16 years 7 months ago
CUBE File: A File Structure for Hierarchically Clustered OLAP Cubes
Abstract. Hierarchical clustering has been proved an effective means for physically organizing large fact tables since it reduces significantly the I/O cost during ad hoc OLAP quer...
Nikos Karayannidis, Timos K. Sellis, Yannis Kouvar...
EDBT
2006
ACM
159views Database» more  EDBT 2006»
16 years 7 months ago
Fast Nearest Neighbor Search on Road Networks
Nearest neighbor (NN) queries have been extended from Euclidean spaces to road networks. Existing approaches are either based on Dijkstra-like network expansion or NN/distance prec...
Haibo Hu, Dik Lun Lee, Jianliang Xu
EDBT
2006
ACM
194views Database» more  EDBT 2006»
16 years 7 months ago
On Concurrency Control in Sliding Window Queries over Data Streams
Abstract. Data stream systems execute a dynamic workload of longrunning and one-time queries, with the streaming inputs typically bounded by sliding windows. For efficiency, window...
Lukasz Golab, Kumar Gaurav Bijay, M. Tamer Öz...
EDBT
2008
ACM
95views Database» more  EDBT 2008»
16 years 7 months ago
Zerber: r-confidential indexing for distributed documents
To carry out work assignments, small groups distributed within a larger enterprise often need to share documents among themselves while shielding those documents from others'...
Sergej Zerr, Elena Demidova, Daniel Olmedilla, Wol...
ICDE
2010
IEEE
359views Database» more  ICDE 2010»
16 years 6 months ago
Policy-Aware Sender Anonymity in Location Based Services
Sender anonymity in location-based services (LBS) attempts to hide the identity of a mobile device user who sends requests to the LBS provider for services in her proximity (e.g. &...
Alin Deutsch, Richard Hull, Avinash Vyas, Kevin Ke...