Queering Geographic Information information Systems

P105: Geographic Information Systems on Accident Risk Assessment and Management

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Geographic Information Systems

datum Basis for measurement of position on the Earth’s surface. discrete object view Conceptualization of geographic phenomena as analogous to a tabletop littered with countable, possibly movable objects. ecological fallacy The fallacy of making inferences about individuals from aggregated data. field view Conceptualization of geographic phenomena as a set of functions over geographic space. ge...

Advanced Geographic Information Systems

Geographic Information Systems

graph graph and geography the geographical problem Figure 3.11: The Koenigsberg bridge problem and its graphical representation. The problem and its associated graph is shown in Figure 3.11 and this allows us to prove it is impossible to visit all the land masses, crossing each bridge only once. Graphs are a topological construct, and do not have a notion of distance associated with them in gen...

Geographic Information Systems

Geographic information systems are used to collect, analyze, and present information describing the physical and logical properties of the geographic world. Geographically refer-enced data is the spatial data that pertain to a location on the earth's surface. Using object-oriented database technology to model the real world. There are four major functional units in a typical geographic informat...