The CELEBRATEproject developed and successfully demonstrated a federated learning object brokerage system architecture and made available to schools over 1350 learning objects prod...
The UML 2 Activity Diagram is designed for modelling business processes, but does not yet include any concepts for modelling process goals and their measures. We extend the UML 2 A...
Libraries, museums, and other organizations make their electronic contents available to a growing number of users on the Web. A large fraction of the information published is store...
Preference-based search is the problem of finding an item that matches best with a user's preferences. User studies show that example-based tools for preference-based search c...
We present a functional model for the analysis of large volumes of detailed transactional data, accumulated over time. In our model, the data schema is an acyclic graph with a sing...