New PDF release: Advances in Geocomputation: Geocomputation 2015--The 13th

By Daniel A. Griffith, Yongwan Chun, Denis J. Dean

ISBN-10: 3319227858

ISBN-13: 9783319227856

ISBN-10: 3319227866

ISBN-13: 9783319227863

This ebook includes refereed papers from the thirteenth overseas convention on GeoComputation held on the college of Texas, Dallas, might 20-23, 2015. given that 1996, the contributors of the GeoComputation (the artwork and technological know-how of fixing complicated spatial issues of pcs) neighborhood have joined jointly to improve a sequence of meetings within the uk, New Zealand, Australia, eire and the U.S. of the US. The convention encourages various themes regarding novel methodologies and applied sciences to counterpoint the long run improvement of GeoComputation research.

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When geographical data are encoded as points, lines, or polygons, locations are recorded among the attributes for each unit of observation. When geographical data are encoded as pixels, however, locations are the units of observation for which other attributes are recorded. One of the nice things about the latter is that all manner of geographical phenomena are expressed in a common and uncomplicated format. Even nicer is the fact that, by casting locations (rather than objects) as the elemental units by which data are processed, a number of additional processing Fig.

To keep computational cost under control, calculations were performed for each state separately, and results were joined into a single map for the entire United States. 4 GHz, 4-cores processor and 16 GB of memory running the Linux operating system. 0 software. The total time of Gen-2 calculations was 66 h. 3 Results The best way to examine population density grids generated by our Gen-1 and Gen2 algorithms is to explore them using the SocScape web application. SocScape is a computerized map application that allows a population density map to be overlaid on a base layer of either a street map or an aerial image.

To explore the kind of thinking that distinguishes raster processing, several brief examples are presented in the form of classroom brainteasers. These are offered in support of a contention that raster operations are better understood from a local, rather than global, point of view. Keywords Raster ⋅ Map algebra ⋅ Cartographic modeling 1 Introduction If it ends in “s” without ending in “ness,” map it with points, lines, or polygons. Otherwise, it is probably better mapped as a field of pixels. When geographic information systems (GIS) were first introduced, the distinction between vector-encoded maps of discrete features and raster-encoded maps of continuous fields was largely a matter of practical differences in storage, processing, and presentation capabilities.

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Advances in Geocomputation: Geocomputation 2015--The 13th International Conference by Daniel A. Griffith, Yongwan Chun, Denis J. Dean


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