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» The Limits of Querying Ontologies
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ICDCS
2009
IEEE
13 years 7 months ago
Fragmentation Design for Efficient Query Execution over Sensitive Distributed Databases
The balance between privacy and utility is a classical problem with an increasing impact on the design of modern information systems. On the one side it is crucial to ensure that ...
Valentina Ciriani, Sabrina De Capitani di Vimercat...
ICDE
2006
IEEE
191views Database» more  ICDE 2006»
14 years 10 months ago
Query Decomposition: A Multiple Neighborhood Approach to Relevance Feedback Processing in Content-based Image Retrieval
Today's Content-Based Image Retrieval (CBIR) techniques are based on the "k-nearest neighbors" (kNN) model. They retrieve images from a single neighborhood using lo...
Kien A. Hua, Ning Yu, Danzhou Liu
SAC
2009
ACM
14 years 4 months ago
Enhancing XML data warehouse query performance by fragmentation
XML data warehouses form an interesting basis for decisionsupport applications that exploit heterogeneous data from multiple sources. However, XML-native database systems currentl...
Hadj Mahboubi, Jérôme Darmont
SAC
2003
ACM
14 years 2 months ago
Broadcast Program Generation for Unordered Queries with Data Replication
We study in this paper the problem of broadcasting dependent data for unordered queries. However, most prior studies on dependent data broadcasting are limited to the premise of n...
Jiun-Long Huang, Ming-Syan Chen
ESOP
2008
Springer
13 years 11 months ago
Regular Expression Subtyping for XML Query and Update Languages
Abstract. XML database query languages such as XQuery employ regular expression types with structural subtyping. Subtyping systems typically have two presentations, which should be...
James Cheney