GIS Dictionary

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web service

[Internet] A software component accessible over the World Wide Web for use in other applications. Web services are built using […]

Web service catalog

[Internet] A collection of ArcGIS Server Web services. A Web service catalog is itself a Web service with a distinct

Web site

[Internet] A collection of Web pages (HTML files) that are interconnected with hyperlinks and published on the World Wide Web.

weed tolerance

[data capture] The minimum distance allowed between any two vertices along a line, set before digitizing. When new lines are

weeding

[data capture] Reducing the number of points that define a line while preserving its essential shape.

weight

1 [mathematics] A number that indicates the importance of a variable for a particular calculation. The larger the weight assigned

weight filter

[ESRI software] In geometric networks, a specification for which network features can be traced based on their weight values.

weighted constrained adjustment

[ESRI software] In Survey Analyst for field measurements, one of two possibilities for performing a constrained adjustment. In the weighted

weighted mean center

[spatial statistics use for geostatistics] The geographic center of a set of points as adjusted for the influence of a

weighted moving average

[spatial statistics use for geostatistics] The value of a point’s attribute computed by averaging the values of its surrounding points,

weighted overlay

[data analysis] A technique for combining multiple rasters by applying a common measurement scale of values to each raster, weighting

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