20 research outputs found

    A conceptual model for trasport problems

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    Published June 1996. Supported by the P.F. Trasporti II of the Consiglio Nazionale delle RicercheConsiglio Nazionale delle Ricerche (CNR). Biblioteca Centrale / CNR - Consiglio Nazionale delle RichercheSIGLEITItal

    An object oriented knowledge based system for pancreatic disease

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    Work partially supported by the National Strategic Project of the CNR Informative Systems for the Biomedicine.SIGLEITItal

    A system for the evaluation of urban pollution using a geographic information system

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    Published September 1997Consiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7, Rome / CNR - Consiglio Nazionale delle RichercheSIGLEITItal

    A pictorial query language extended with cardinal and positional operators for querying geographic databases

    No full text
    Consiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7 Rome / CNR - Consiglio Nazionale delle RichercheSIGLEITItal

    A model for the graphical representation of aggregate data

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    This work has been partially supported by the National Special Project of the CNR. "Statistical Databases"SIGLEITItal

    Equivalence of aggregate queries and aggregate view usability

    No full text
    Consiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7 Rome / CNR - Consiglio Nazionale delle RichercheSIGLEITItal

    A data structure for the formal definition of aggregate data

    No full text
    Published December 1995Consiglio Nazionale delle Ricerche (CNR). Biblioteca Centrale / CNR - Consiglio Nazionale delle RichercheSIGLEITItal
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