We take another look at the 2DR-tree. In particular, we revisit its node structure, validity rules and the insertion strategy. The 2DR-tree uses 2D nodes so that the relationships...
Three-screen services provide the right solution for consumers to access rich multimedia resources by any device, anytime and anywhere. In this paper, we describe a prototype syst...
Zhu Liu, David C. Gibbon, Harris Drucker, Andrea B...
This paper describes a service-oriented architecture for accessing resources through semantically designed portals called hubs. The services are dedicated to: (a) ontology manageme...
Current security mechanisms are not suitable for organisations that outsource their data management to untrusted servers. Encrypting and decrypting sensitive data at the client si...
Digital Libraries can be considered islands of specialized collections on the Web, which have their own management policy to control publishing and access, offering an environment...