Semantic Web Services enable the dynamic discovery of services based on a formal, explicit specification of the requester needs. The actual Web Services that will be used to satis...
Agent communication languages such as KQML and the FIPA ACL serve as metalanguages to define software agent message-passing protocols. These metalanguages are incompatible with eac...
Abstract. WebML (Web Modelling Language) is a language for the design of dataintensive Web sites. It is supported by visual tools allowing the definition of the conceptual data or...
We introduce visual graphs as an intermediate repren between concrete visual syntax and abstract graph syntax. In a visual graph some nodes are shown as geometric figures, and som...
Most of the currently existing image retrieval systems make use of either low-level features or semantic (textual) annotations. A combined usage during annotation and retrieval is ...