Abstract In the Database-As-a-Service (DAS) model, clients store their database contents at
servers belonging to potentially untrusted service providers. To maintain data confidentiality …

XML access control requires the enforcement of highly expressive access control policies to
support schema-, document and object-specific protection requirements. Access control …

The increasing demand to extend data mining technology to data sets inherently distributed
among a large number of autonomous and heterogeneous sources over a network with …

XML access control policies involving updates may contain security flaws, here called
inconsistencies, in which a forbidden operation may be simulated by performing a sequence …

To improve query performance materialised views were largely used for such purpose. So
far, this technique has been a success as testified by the large and increasing interest …

With the increasing usage of XML on information sharing over the Internet, a mechanism for
defining and enforcing XML access control is demanded, such that only authorized entities …

Jia Gu Wen is the earliest Chinese character. Since it has many of the properties of
drawings, common recognition methods cannot be efficiently applied. We provide a …

XML access control policies involving updates may contain security flaws, here called
inconsistencies, in which a forbidden operation may be simulated by performing a sequence …

In this paper, we ask whether XML access control can be supported when underlying (XML
or relational) storage system does not provide adequate security features and propose three …

While XML has been widely adopted for information sharing over the Internet, the need for
efficient XML access control naturally arise. Various XML access control enforcement …