Now showing items 1-14 of 14

  • Acceso integrado a bases de datos heterogeneas 

    Saltor Soler, Félix Enrique (Asociación de Técnicos de Informática, 1991-04)
    Article
    Open Access
  • BASES DE DADES AVANÇADES (Examen 1r quadrim.) 

    Saltor Soler, Félix Enrique (Universitat Politècnica de Catalunya, 2002-01-24)
    Exam
    Restricted access to the UPC academic community
  • Extraction of data dependencies 

    Castellanos Vázquez, M. Guadalupe; Saltor Soler, Félix Enrique (1993-02)
    External research report
    Open Access
    Relational database schemas must be semantically enriched to reflect knowledge about the data, as needed by many applications. One technique is the analysis of the database extension, extracting existing data dependencies. ...
  • Information system architecture for secure data warehousing 

    Abelló Gamazo, Alberto; Oliva, M; Samos, J; Saltor Soler, Félix Enrique (2000-04)
    External research report
    Open Access
    This paper is devoted to Secure Data Warehousing architecture and its data schemas. We relate a federated databases architecture to Data Warehouse schemas, which allows us to provide better understanding to the characteristics ...
  • La opinión de los usuarios 

    Camps Paré, Rafael; Saltor Soler, Félix Enrique (Asociación de Técnicos de Informática, 1976-09)
    Article
    Open Access
  • Multi-star conceptual schemas for OLAP systems 

    Abelló Gamazo, Alberto; Samos, J; Saltor Soler, Félix Enrique (2001-10)
    External research report
    Open Access
    OLAP tools divide concepts based on whether they are used as analysis dimensions, or are the fact subject of analysis, which gives rise to star shape schemas. Operations are always provided to navigate inside such star ...
  • On architectures for federated DB systems 

    Saltor Soler, Félix Enrique; Campderrich, Benet; García Solaco, Manuel Alberto (1994-02)
    External research report
    Open Access
    Different architectures for federated database systems have been proposed. We present three federation rules, analogous to the rules for fragmentation in distributed databases, and show that the reference architecture by ...
  • On schema and functional architectures for multilevel secure and multiuser model federated DB systems 

    Rodríguez González, María Elena; Oliva, Marta; Saltor Soler, Félix Enrique; Campderrich, Benet (1997-07)
    External research report
    Open Access
    This paper presents an approach for tightly federated database systems with several federated schemas that consists of a schema architecture and a functional architecture. The reference schema architecture has been extended ...
  • On schema and functional architectures for multilevel secure and multiuser model federated DB systems 

    Rodríguez Carbonell, Enric; Oliva, M.; Saltor Soler, Félix Enrique; Campderrich, B. (1997-07-02)
    External research report
    Open Access
    This paper presents an approach for tightly federated database systems with several federated schemas that consists of a schema architecture and a functional architecture. The reference schema architecture has been ...
  • Searching spatial sense in the ontological world: discovering spatial objects 

    Morocho Zurita, Villie; Pérez Vidal, Lluís; Saltor Soler, Félix Enrique (2004-05)
    External research report
    Open Access
    The search of semantic understanding in information systems has led us to take advantage from fields like Natural Language processing from the Artificial Intelligence. This is the case of ontologies which have been used ...
  • Semantic integration on spatial databases: SIT-SD prototype 

    Morocho, Villie; Pérez Vidal, Lluís; Saltor Soler, Félix Enrique (2003)
    Conference report
    Open Access
    Progress on data integration has come to the point that we must deal with the need of semantic integration. ln this work we present a prototype of an integration tool of information sources (Semantic lntegration Tool for ...
  • Sistema cooperativo para la integración de fuentes heterogéneas de información y almacenes de datos 

    Samos, J; Abelló Gamazo, Alberto; Oliva, M; Rodríguez González, María Elena; Saltor Soler, Félix Enrique; Sistac Planas, Jaume; Araque, F; Delgado, C; Garvi, E; Ruiz, E (Asociación de Técnicos de Informática, 1999-11)
    Article
    Open Access
    En este trabajo se presenta nuestra propuesta de creación de un prototipo de sistema cooperativo para la integración de fuentes heterogéneas de información y almacenes de datos en el cual se centran actualmente nuestras ...
  • The syntax of BLOOM99 schemas 

    Abelló Gamazo, Alberto; Oliva, M; Rodríguez González, María Elena; Saltor Soler, Félix Enrique (1999-10)
    External research report
    Open Access
    The BLOOM (BarceLona Object Oriented Model) data model was developed to be the Canonical Data Model (CDM) of a Federated Database Management System prototype. Its design satisfies the features that a data model should ...
  • YAM2 (Yet Another Multidimensional Model): an extension of UML 

    Abelló Gamazo, Alberto; Samos, J; Saltor Soler, Félix Enrique (2001-10)
    External research report
    Open Access
    This paper presents a multidimensional conceptual Object-Oriented model, its structures, integrity constraints and query operations. It has been developed as an extension of UML core metaclasses to facilitate its usage, ...