281 search results - page 4 / 57 » Querying the Guarded Fragment |
WEBDB
2005
Springer
15 years 3 months ago
2005
Springer
Data fragmentation offers various attractive alternatives to organizing and managing data, and presents interesting characteristics that may be exploited for efficient processing...
PODS
2007
ACM
15 years 10 months ago
2007
ACM
Query containment has been studied extensively for fragments of
PODS
2007
ACM
15 years 10 months ago
2007
ACM
Variables are the distinguishing new feature of XPath 2.0 which permits to select n-tuples of nodes in trees. It is known that the Core of XPath 2.0 captures n-ary first-order (FO...
BNCOD
2009
14 years 11 months ago
2009
We study the expressiveness of a positive fragment of path queries, denoted Path+ , on node-labeled trees documents. The expressiveness of Path+ is studied from two angles. First, ...
FORMATS
2006
Springer
15 years 1 months ago
2006
Springer
We consider interval measurement logic IML, a sublogic of Zhou and Hansen's interval logic, with measurement functions which provide real-valued measurement of some aspect of ...