[postgis-tickets] [PostGIS] #886: Fix normalizing of multi street number range addresses and fractional street numbers

[PostGIS]

#886: Fix normalizing of multi street number range addresses and fractional
street numbers
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 Reporter:  robe            |       Owner:  robe          
     Type:  defect          |      Status:  new           
 Priority:  medium          |   Milestone:  PostGIS Future
Component:  tiger geocoder  |     Version:  trunk         
 Keywords:                  |  
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Changes (by woodbri):

 * cc: woodbri (added)


Comment:

 This strategy is not bad, but for linear interpolation you need to have a
 number that is varying over the length of the segment. In your reference
 set you have the start and end range "numbers" that might actually be
 complex patterns but by comparing the the ranges you can sort out what is
 constant and what is changing over the range and extract that. When you
 only have a single address you can not do this analyses.

 So a better global strategy might be to find the segments that match on
 street and location and them compare trigrams, or levensthein edit
 distance to score which range is a close fit then do an analysis similar
 to the above to extract the range over which the segment needs to be
 interpolated.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/886#comment:4>
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