1782 search results - page 140 / 357 » Processing Queries over Distributed XML Databases |
VLDB
2009
ACM
14 years 10 months ago
2009
ACM
We consider the problem of using sampling to estimate the result of an aggregation operation over a subset-based SQL query, where a subquery is correlated to an outer query by a NO...
PVLDB
2008
13 years 9 months ago
2008
With the rise of XML, the database community has been challenged by semi-structured data processing. Since the data type behind XML is the tree, state-of-the-art RDBMSs have learn...
CIKM
2008
Springer
14 years 7 days ago
2008
Springer
This paper addresses the challenging problem of similarity search over widely distributed ultra-high dimensional data. Such an application is retrieval of the top-k most similar d...
SEMWEB
2009
Springer
14 years 4 months ago
2009
Springer
The Web of Linked Data forms a single, globally distributed dataspace. Due to the openness of this dataspace, it is not possible to know in advance all data sources that might be r...
ICDE
2008
IEEE
14 years 11 months ago
2008
IEEE
Data sources on the web are often accessible through web interfaces that present them as relational tables, but require certain attributes to be mandatorily selected, e.g., via a w...