Search operations in databases require some special support at the physical level. This is true for conventional databases as well as for spatial databases, where typical search o...
A type system is presented that combines a weak form of information flow control, termed distributed access control in the paper, with typed cryptographic operations. The motivat...
When scientific data sets can be interpreted visually they are typically managed as pictures and consequently stored as large collections of bitmaps. Valuable information containe...
With the growing advancement of pervasive computing technologies, we are moving towards an era where spatio-temporal information will be necessary for access control. The use of su...
Metric access methods based on hyperplane partitioning have the advantage, compared to the ballpartitioning-based ones, that regions do not overlap. The price is less flexibility...