To divide a large set of spatial objects into a number of spatially contiguous regions while optimizing an objective function, which is normally a homogeneity (or heterogeneity) measure of the derived regions.

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1
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0answers
24 views

Fill holes with an area bigger of a specific value in a raster coverage

I want to fill some areas of a raster coverage with a value of my choice. Those areas now contain NODATA values. So, they look like holes in my coverage. I know I could use r.clump function of GRASS, ...
1
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1answer
63 views

Redcap Shapefile Error

For some reason I am unable to import shape files in the form of point data to REDCAP. Do these data points need projected coordinate systems? I am aware that the sample size is 500 when double ...
2
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0answers
40 views

Difference between regionalization and image segmentation

Regionalization is a special form of clustering where spatial units are grouped together, based on a set of defined criteria (cluster homogeneity) and a set of contiguity or adjacency constraints. ...
9
votes
2answers
232 views

Aggregating Polygons To Meet Privacy Requirements

I have a point feature class representing office locations of all employers in a certain industry. The feature class has an attribute for storing the number of employees working at each office. ...
2
votes
1answer
124 views

How to convert lat long into world region?

I have a list of lat/lon points in a kml file which I would like to group into world regions. How can I use the World Borders Dataset or some other dataset to generate a "region" tag for each point?
22
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6answers
921 views

What tools for regionalization/redistricting can you recommend?

I am looking for tools for regionalization / districting in GIS. So far I have been able to identify Districting ArcGIS extension (now also online) REDCAP (currently limited to 50k input polygons) ...