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» Optimizing Path Expression Queries of XML Data
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2007
Springer
15 years 9 months ago
A Rewrite Based Approach for Enforcing Access Constraints for XML
Abstract. Access control for semi-structured data is nontrivial, as witnessed by the number of access control approaches in recent literature. Recently a case has been made for exp...
Sriram Mohan, Arijit Sengupta, Yuqing Wu
SIGMOD
2008
ACM
198views Database» more  SIGMOD 2008»
16 years 3 months ago
Efficient storage scheme and query processing for supply chain management using RFID
As the size of an RFID tag becomes smaller and the price of the tag gets lower, RFID technology has been applied to a wide range of areas. Recently, RFID has been adopted in the b...
Chun-Hee Lee, Chin-Wan Chung
ICDCS
2006
IEEE
15 years 9 months ago
Content-based Dissemination of Fragmented XML Data
Content-based dissemination of data using pub/sub systems is an effective means to deliver relevant data to interested data consumers. With the emergence of XML as the standard f...
Chee Yong Chan, Yuan Ni
DLOG
2006
15 years 4 months ago
Data Complexity of Answering Unions of Conjunctive Queries in SHIQ
The novel context of accessing and querying large data repositories through ontologies that are formalized in terms of expressive DLs requires on the one hand to consider query an...
Magdalena Ortiz, Diego Calvanese, Thomas Eiter
ICDT
2009
ACM
105views Database» more  ICDT 2009»
16 years 3 months ago
Efficient data structures for range-aggregate queries on trees
Graph-theoretic aggregation problems have been considered both in OLAP (grid graph) and XML (tree). This paper gives new results for MIN aggregation in a tree, where we want the M...
Hao Yuan, Mikhail J. Atallah