Universitat de Lleida (UdL)Ferran Perdrix, Marta Oliva, Roberto García, Rosa Gil
The collaboration with this group was mainly in the area of architectures for federated information systems inside the BLOOM project. We tried to solve the growing need of cooperation between independent entities that requires an integrated access to autonomous, heterogeneous and distributed databases. This integrated access, that is, an access as if they were a single database, requires interconnecting the database systems by communication network and overlapping a software layer upon the DBMSs to support their communication, sharing their data but preserving their autonomy at the local application level. The collection of cooperating DBMS (also known as Component Databases - CDBs) forms a Database Federation (DBF) and the Federated Database Management System (FDBMS) is the software that manages the DBF.
Later on, we also collaborated in semantic data integration, ontological knowledge and reasoning. Specifically, we proposed an approach based on ontologies and differentiated universes of discourse (UoD), where users interact with the system and, from this interaction, integration rules are derived. These rules were based on Description Logic ontological relations for subsumption and equivalence, that relate the different UoD and produce a shared conceptualisation. It was applied in a newspaper information domain.
2006 Alberto Abelló, Roberto García, Rosa M. Gil, Marta Oliva, Ferran Perdrix: Semantic Data Integration in a Newspaper Content Management System. OTM Workshops (1) 2006 2003 Alberto Abelló, Elena Rodríguez, Fèlix Saltor, Marta Oliva, Cecilia Delgado, Eladio Garví, José Samos: On Operations to Conform Object-Oriented Schemas. ICEIS (1) 2003 2001 Elena Rodríguez, Alberto Abelló, Marta Oliva, Fèlix Saltor, Cecilia Delgado, Eladio Garví, José Samos: On Operations Along the Generalization/Specialization Dimension. EFIS 2001 2000 Alberto Abelló, Marta Oliva, José Samos, Fèlix Saltor: Information System Architecture for Secure Data Warehousing. EFIS 2000