Pitney Bowes MapMarker USA - Manual (Page 50)

MapMarker USA 25
50
User Guide
Geocoding Terminology
MapMarker products use a common set of geocoding terms. We use these terms consistently in the
MapMarker documentation, and describe the terms more fully where appropriate.
Geocoding Terminology
Term Definition
address Information that identifies the location of a site, for example, a
home or business.
address dictionary The search dictionary used for matching addresses during
geocoding.
address interpolation A mathematical means of estimating an address location based on
a street segment and the address ranges associated with that
segment. This method of interpolation assigns coordinates to
address records in relation to the position of address point
candidates in the data, providing greater positional accuracy to the
geocoded points.
candidate An address record that is a potential match to the input address
information.
A candidate is returned by the geocoding process. See also
geocoding .
CASS™ Coding Accuracy Support System. This is a process by which
mailing addresses are standardized to meet U.S. Postal Service
®
requirements for bulk mailing discounts. When CASS mode is
enabled, MapMarker will perform this address standardization
under strict matching conditions set by the USPS
® . Geocoding in
CASS mode matches records to the exact house number, street
name, and ZIP Code™. Other geocoding preferences are
overridden.
centroid A point at the calculated center of a polygon, often used to attach
attribute information to an area. The centroid is used for labeling
and geocoding.
For an irregularly shaped area, region, or polygon, the centroid is
derived mathematically and is weighted to locate the point at the
approximate "center of gravity."
close match If an input address corresponds closely to one or more known
records in the address dictionary, then the returned candidates are
considered close matches. The specified matching criteria may
include house number, street name, city name, locality, or postal
code.