Using a multiple pass strategy, First pass, Second pass – Pitney Bowes MapMarker USA User Manual
Page 120: First pass second pass, Using a, Stra
Using a Multiple Pass Strategy
MapMarker USA 25
120
User Guide
See
Match Settings Dialog on page 96
and related topics for descriptions of match modes, exact
match settings, and other constraints that affect the match rate and performance.
Using a Multiple Pass Strategy
The following scenario outlines a three-pass geocoding session based on the strategy of maximizing
the match rate. See
Maximizing the Match Rate on page 118
for an overview of that strategy. You
generally want to generate the highest match rate for a large database while minimizing false
positives. To achieve this, use a restrictive matching strategy in the first pass, then follow with an
interactive session to pick up additional matches, and finally, a third pass to ZIP Code centroids to
geocode any remaining records.
First Pass
Geocode the table automatically with the settings that generate the highest match rate with the
fewest false positives:
•
Require exact match on House Number but do not require match on Street Name or ZIP Code.
(Although for a stricter matching first pass you could require exact match on street name and ZIP
Code.)
•
Do not accept first of multiple matches.
•
Do not fallback to ZIP Code centroid matching.
All records geocoded during this pass are exact or close matches that geocode to the street level.
Depending on the cleanliness of your data, the majority of your table is processed during this pass.
This pass generates the least number of false positive matches.
Second Pass
For this pass, geocode all unmatched rows interactively with the following settings:
•
Uncheck the settings for house number, street name, and ZIP Code.
•
Do not accept first of multiple matches.
•
Do not fallback to ZIP Code centroid matching.
•
Edit the input address where necessary to increase the likelihood of a match.
Each match in this pass is still at street level accuracy. Since you are in interactive mode, you control
every match, thus, minimizing the number of false positives.
You can also change the match settings, expand the Search, map the match candidates, and edit
the record to find additional matches.