6974 search results - page 18 / 1395 » Querying Semi-Structured Data |
AMW
2010
13 years 9 months ago
2010
We study query authentication schemes, algorithmic and cryptographic constructions that provide efficient and secure protocols for verifying the results of queries over structured...
JIDM
2010
13 years 2 months ago
2010
The increasing volume of data stored as XML documents makes fragmentation techniques an alternative to the performance issues in query processing. Fragmented databases are feasible...
ESWS
2004
Springer
13 years 11 months ago
2004
Springer
Abstract. In this paper we describe the work that was done in the Corporate Ontology Grid (COG) project on the querying of existing legacy data sources from the automotive industry...
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
This paper focuses on the problem of improving distributed query throughput of the RDBMS-based data integration system that has to inherit the query execution model of the underly...
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
We study the fundamental limitations of relational algebra (RA) and SQL in supporting sequence and stream queries, and present effective query language and data model enrichments ...