The availability of methods for abstracting and generalizing spatial data is vital for
understanding and communicating spatial information. Spatial analysis using maps at …

This paper summarizes some of the key architectural elements and reviews some of the
results of the AGENT project, a research project funded by the European Commission …

Virtual 3D city models increasingly cover whole city areas; hence, the perception of complex
urban structures becomes increasingly difficult. Using abstract visualization, complexity of …

This paper explores the use of the stochastic optimization technique of simulated annealing
for map generalization. An algorithm is presented that performs operations of displacement …

Traditional GISystems are no longer appropriate for modern distributed, heterogeneous
network environments due to their closed architecture, and their lack of interoperability …

Visualizing spatial information on small mobile displays is a big chance and challenge at the
same time. In order to address the tradeoff between huge spatial data sets and small storage …

As an important method of terrain representation, a DEM usually needs to be generalized at
multiple resolutions in order to adapt to different applications. The preservation of main …

Map generalization is one of the core technologies of cartography and multi-scale spatial
data transformation. Since the 1960s, the research on the automated generalization of map …

Polygonal subdivisions, ie the representation of categorical data in the vector model, are a
common data type in GIS applications, in thematic maps, in topographic maps and in digital …

Different users of geospatial information have different requirements of that information.
Matching information to users' requirements demands an understanding of the ontological …