What is GeoEnrichment? An example would best describe it. Given a big set of customer location records, I would like each location to be GeoEnriched with the average income of the zip code where that location falls into and with the number of people between the age of 25 and 30 that live in that zip code.
Before GeoEnrichment:
CustId,Lat,Lon
After GeoEnrichment:
CustId,Lat,Lon,AverageIncome,Age25To30
Of course the key to this whole thing is the spatial reference data :-) and there are a lot of search options, such as Point-In-Polygon, Nearest Neighbor and enrichment based on a Drive Time Polygon from each location.
I've implemented two search methods:
The Nearest Neighbor Weighted (NNW) method finds all the reference points within a specified distance and weights each point based on its distance. The GeoEnrichment value is the sum of the weighted attribute value.
You can more details about this here, where I've used HBase and Geometry API for Java to perform the GeoEnrichment.
Before GeoEnrichment:
CustId,Lat,Lon
After GeoEnrichment:
CustId,Lat,Lon,AverageIncome,Age25To30
Of course the key to this whole thing is the spatial reference data :-) and there are a lot of search options, such as Point-In-Polygon, Nearest Neighbor and enrichment based on a Drive Time Polygon from each location.
I've implemented two search methods:
- Point-In-Polygon method
- Nearest Neighbor Weighted method
The Nearest Neighbor Weighted (NNW) method finds all the reference points within a specified distance and weights each point based on its distance. The GeoEnrichment value is the sum of the weighted attribute value.
You can more details about this here, where I've used HBase and Geometry API for Java to perform the GeoEnrichment.
