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SIGMOD
2005
ACM
99views Database» more  SIGMOD 2005»
14 years 8 months ago
LiXQuery: a formal foundation for XQuery research
XQuery is considered to become the standard query language for XML documents. However, the complete XQuery syntax and semantics seem too complicated for research and educational p...
Jan Hidders, Philippe Michiels, Jan Paredaens, Roe...
SIGMOD
2001
ACM
104views Database» more  SIGMOD 2001»
14 years 8 months ago
Querying Multi-dimensional Data Indexed Using the Hilbert Space-filling Curve
Mapping to one-dimensional values and then using a onedimensional indexing method has been proposed as a way of indexing multi-dimensional data. Most previous related work uses th...
Jonathan K. Lawder, Peter J. H. King
DEXA
2009
Springer
70views Database» more  DEXA 2009»
14 years 2 months ago
On the Termination Problem for Declarative XML Message Processing
Abstract. We define a formal syntax and semantics for the Rule Definition Language (RDL) of DemaqLite, which is a fragment of the declarative XML message processing system Demaq....
Tadeusz Litak, Sven Helmer
DEXAW
2003
IEEE
99views Database» more  DEXAW 2003»
14 years 1 months ago
A Model for Context-dependent Access Control for Web-based Services with Role-based Approach
Controlling access to resources is one of the most important protection goals for web-based services in practice. In general, access control requires identification of subjects t...
Ruben Wolf, Thomas Keinz, Markus Schneider
DEXAW
2002
IEEE
97views Database» more  DEXAW 2002»
14 years 1 months ago
Several Structures for Protecting the Routes of Mobile Agents Dispatched in Parallel
For mobile agents to be effective in practice, they have to be securely and efficiently deployed. In this paper, we propose and discuss several route structures and methods for mo...
Yan Wang 0002, Kian-Lee Tan, Xiaolin Pang