Acquiring spatial data for geoinformation systems is still mainly done by human operators who analyze images using classical photogrammetric equipment or digitize maps, possibly assisted by some low level image processing. Automation of these tasks is difficult due to the complexity of the object, the topography, and the deficiency of current pattern recognition and image analysis tools for achieving a reliable transition from the data to the high level description of topographic objects. It appears that progress in automation only can be achieved by incorporating domain-specific semantic...

Dieser Buchtitel ist Teil des Digitalisierungsprojekts Springer Book Archives mit Publikationen, die seit den Anfangen des Verlags von 1842 erschienen sind. Der Verlag stellt mit diesem Archiv Quellen fur die historische wie auch die disziplingeschichtliche Forschung zur Verfugung, die jeweils im historischen Kontext betrachtet werden mussen. Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch-ideologischen Ausrichtung vom Verlag nicht beworben.

The city of Vienna has achieved extraordinary milestones in public housing: today, over 60% of the population lives in subsidized housing, and the city itself owns 220,000 rental units--about 25% of the total housing stock. Another 200,000 affordable housing units are owned by limited-profit housing associations. The city is clearly in control of the housing market. This stands in stark contrast to the US, where the private market is the primary provider of housing. Vienna's successful model dates back to the days of -Red Vienna, - when the socialist government took an active interest in...