Blar i Institutt for økonomi og it på emneord "555"
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A four-dimensional time-space trend model to be applied in the reconstruction of former sea levels and ice-front recession
(Journal article; Peer reviewed, 1997)The model is represented by a four-dimensional trend function giving the elevation of the sea level (Z) above the present one as a function of locality co-ordinates (x and y) and time co-ordinate (t). The function and an ... -
On the integration of object-based models and field-based models in GIS
(Journal article; Peer reviewed, 2006)This paper proposes a common base-model for the classical object-based and field-based conceptual models in GIS. The model, which is called the PGOModel or 'Parameterized Geographic Object Model', is given a formal definition ... -
On the use of parameterization in the implementation of geometry
(Conference report, 2001)Parameterization of object-classes is an attractive approach during implementation of an object-oriented software system. This text discusses different cases of possible parameterization in the implementation of geometry ...