Sciweavers

778 search results - page 112 / 156
» Expressiveness and complexity of graph logic
Sort
View
ERSHOV
2009
Springer
14 years 5 months ago
Towards a Scalable, Pragmatic Knowledge Representation Language for the Web
Abstract. A basic cornerstone of the Semantic Web are formal languages for describing resources in a clear and unambiguous way. Logical underpinnings facilitate automated reasoning...
Florian Fischer, Gulay Ünel, Barry Bishop, Di...
WEBDB
2005
Springer
97views Database» more  WEBDB 2005»
14 years 4 months ago
Towards a Query Language for Multihierarchical XML: Revisiting XPath
In recent years it has been argued that when XML encodings become complex, DOM trees are no longer adequate for query processing. Alternative representations of XML documents, suc...
Ionut Emil Iacob, Alex Dekhtyar
ICDT
2009
ACM
125views Database» more  ICDT 2009»
14 years 11 months ago
How big must complete XML query languages be?
Marx and de Rijke have shown that the navigational core of the w3c XML query language XPath is not first-order complete ? that is it cannot express every query definable in firsto...
Clemens Ley, Michael Benedikt
IJNSEC
2008
75views more  IJNSEC 2008»
13 years 11 months ago
A Key Management Scheme for Hierarchical Access Control in Group Communication
In group communication, users often have different access rights to multiple data streams. Based on the access relation of users and data streams, users can form partially ordered...
Qiong Zhang, Yuke Wang, Jason P. Jue
ICDAR
2003
IEEE
14 years 4 months ago
Detection, Extraction and Representation of Tables
We are concerned with the extraction of tables from exchange format representations of very diverse composite documents. We put forward a flexible representation scheme for comple...
Jean-Yves Ramel, Michel Crucianu, Nicole Vincent, ...