The focus of this study is on cross‐region R&D collaborations in Europe. We use data on
collaborative R&D projects funded by the 5th EU Framework Programme (FP5). The …

The dissemination of digital spatial databases, coupled with the ever wider use of
GISystems, is stimulating increasing interest in spatial analysis from outside the spatial …

Using a spatial interaction modeling approach, we investigate the German collegiate social
network site StudiVZ. We focus on identifying factors that foster strong inter-institutional …

Spatial interaction models describe and predict spatial flows of people, commodities, capital
and information. They are one of the oldest and most widely used of all social science …

This paper attempts to develop a mathematically rigid and unified framework for neural
spatial interaction modelling. Families of classical neural network models, but also less …

We investigate acquaintanceship in StudiVZ, an online social network site especially
popular with students in German-speaking countries. We aggregate individual …

One of the major intellectual achievements and, at the same time, perhaps the most useful
contribution of spatial analysis to social science literature has been the development of …

Spatial interaction models approximate mean interaction frequencies between origin and
destination locations by using origin-specific, destination-specific and spatial separation …

Im Jahre 1991 vollzogen Argentinien, Brasilien, Uruguay und Paraguay mit der Gründung
des “Gemeinsamen Marktes des Südens”(Mercado Común del Sur/MERCOSUR) einen …