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@InProceedings{CamaraNetoMonPaiGomVel:2000:ToUnFr,
               author = "Camara Neto, GIlberto and Monteiro, Antonio Miguel Vieira and 
                         Paiva, Joao Argemiro de carvalho and Gomes, Jonas and Velho, 
                         Luiz",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto de Matem{\'a}tica Pura 
                         e Aplicada (IMPA)} and {Instituto de Matem{\'a}tica Pura e 
                         Aplicada (IMPA)}",
                title = "Towards a unified framework for geographical data models",
            booktitle = "Anais...",
                 year = "2000",
         organization = "Simp{\'o}sio Brasileiro de GeoInform{\'a}tica, 2. (GEOINFO).",
             keywords = "GEOPROCESSAMENTO, Sistemas de Informacao Geografica (sig), 
                         interoperabilidade, geografic information systems, GIS, data 
                         systems, interoperability, taxonomy.",
             abstract = "This paper describes a unified framework for the problems of 
                         modelling and processing geographical entities. We propose a 
                         general definition of geographical objects, and show that the 
                         different types of geographical data can be expressed as 
                         particular cases of this definition. Furthermore, we present a 
                         taxonomy for the various types of GIS operations, defined in terms 
                         of the properties of this definition. Our goal is to argue that 
                         GIS data types and operations can be defined based on a single 
                         formal notion, which encapsulates the GIS concepts of both fields 
                         and objects, with important consequences for system and interface 
                         design, interoperabilty issues and language proposal.",
  conference-location = "Sao Paulo, BR",
      conference-year = "12-13 2000",
           copyholder = "SID/SCD",
                label = "8900",
             language = "en",
           targetfile = "2000_camar2.pdf",
        urlaccessdate = "24 out. 2020"
}


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