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» Drawing database schemas
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IDEAS
2007
IEEE
118views Database» more  IDEAS 2007»
14 years 4 months ago
A Two Layered Approach for Querying Integrated XML Sources
The problem of data integration (query decomposition, data fragmentation) has been widely studied in literature, but the inherent hierarchical nature of XML data presents problems...
Felipe Victolla Silveira, Carlos A. Heuser
SACMAT
2006
ACM
14 years 3 months ago
Secure resource description framework: an access control model
In this paper we propose an access control model for the Resource Description Framework (RDF). We argue that existing access control models, like the ones developed for securing e...
Amit Jain, Csilla Farkas
SAC
2005
ACM
14 years 3 months ago
A pivot-based index structure for combination of feature vectors
We present a novel indexing schema that provides eļ¬ƒcient nearest-neighbor queries in multimedia databases consisting of objects described by multiple feature vectors. The beneļ¬...
Benjamin Bustos, Daniel A. Keim, Tobias Schreck
SIGMOD
2005
ACM
123views Database» more  SIGMOD 2005»
14 years 3 months ago
Magnet: Supporting Navigation in Semistructured Data Environments
With the growing importance of systems containing arbitrary semistructured relationships, the need for supporting users searching in such repositories has grown. Currently support...
Vineet Sinha, David R. Karger
EGC
2005
Springer
14 years 3 months ago
XDTM: The XML Data Type and Mapping for Specifying Datasets
We are concerned with the following problem: How do we allow a community of users to access and process diverse data stored in many diļ¬€erent formats? Standard data formats and da...
Luc Moreau, Yong Zhao, Ian T. Foster, Jens-S. V&ou...