Section: Overall Objectives

Highlights

• Gauwin's PhD thesis [11] showed that even small syntactic fragments of XPath queries cannot be answered efficiently on XML streams, in contrast to queries defined by deterministic tree automata. This insight permitted to design new efficient query answering algorithms for XPath fragments with schema restrictions.

• The recruitment of Sławek Staworko permits to pursue recent approaches on tree transformations for XML control access and query adaptation to schema changes.