3 citations · 6 across the 4 of their papers we have counts for
5 papers
Towards a Complete Direct Mapping From Relational Databases To Property Graphs
Abdelkrim Boudaoud, Houari Mahfoud, Azeddine Chikh
It is increasingly common to find complex data represented through the graph model. Contrary to relational models, graphs offer a high capacity for executing analytical tasks on co…
Revisited Containment for Graph Patterns
Houari Mahfoud
We consider the class of conditional graph patterns (\emph{CGPs}) that allow user to query data graphs with complex patterns that contain negation and predicates. To overcome the p…
Graph Pattern Matching Preserving Label-Repetition Constraints
Houari Mahfoud
Graph pattern matching is a routine process for a wide variety of applications such as social network analysis. It is typically defined in terms of subgraph isomorphism which is NP…
A General Approach for Securely Querying and Updating XML Data
Houari Mahfoud, Abdessamad Imine
Over the past years several works have proposed access control models for XML data where only read-access rights over non-recursive DTDs are considered. A few amount of works have…
Secure Querying of Recursive XML Views: A Standard XPath-based Technique
Houari Mahfoud, Abdessamad Imine
Most state-of-the art approaches for securing XML documents allow users to access data only through authorized views defined by annotating an XML grammar (e.g. DTD) with a collecti…