Experiments with Virtual Hikers, May 2007
A virtual hiker is an algorithm that produces computationally derived paths from data in such a way that allows them to be re-followed through the actual world with GPS. The virtual hikers that are included in the C5 Landscape Database, beginning with version 2.0, include various Least Cost Path hikers and a Slope Reduction hiker based on a natural selection algorithm. Version 2.1 includes an A* hiker that works over a friction surface calculated from USGS digital elevation model data. These experiments from May 2007 demonstrate this virtual hiker's accuracy relative to a well known path: The Moonlight Canyon Trail in the Anza Borrego Desert of Southern California, USA.
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