143 search results - page 24 / 29 » Query Order and the Polynomial Hierarchy |
PODS
2008
ACM
14 years 11 months ago
2008
ACM
We consider the navigational core of XPath, extended with two operators: the Kleene star for taking the transitive closure of path expressions, and a subtree relativisation operat...
ICDE
2000
IEEE
15 years 6 days ago
2000
IEEE
: Many companies have recognized the strategic importance of the knowledge hidden in their large databases and have built data warehouses. Typically, updates are collected and appl...
ICPP
2008
IEEE
14 years 5 months ago
2008
IEEE
Abstract—Federated systems have recently attracted much attention because they allow loosely coupled organizations to share resources for common benefits. However, discovering r...
VLDB
2005
ACM
14 years 4 months ago
2005
ACM
Many enterprise applications prefer to store XML data as a rich data type, i.e. a sequence of bytes, in a relational database system to avoid the complexity of decomposing the dat...
ISVC
2010
Springer
13 years 9 months ago
2010
Springer
Large, multidimensional datasets are difficult to visualize and analyze. Visualization interfaces are constrained in resolution and dimension, so cluttering and problems of project...