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Building geospatial truth sets

November 20, 2019 2 min read

Building geospatial truth sets

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Collecting and validating geospatial data for every commercial location in the USA and Canada is not an easy task. It requires aggregation of data from multiple sources and formats. This data then needs to be validated and decisions need to be made about which data sources represent the truth in the case of conflicting data. Safegraph does this weighing datasets based on certain criteria and using a voting system. 

Data is being scraped and curated from multiple different sources but it some cases it is also necessary to create data. Think of the use case of a shopping center. If you think of the shopping center as being a collection of geometries where the entire shopping center is the parent geometry and the individuals business in the shopping center are child objects. In this situation, Safegraph has had to digitize entire shopping centers manually in order to properly represent the parent/ child geometry relationships.

 

  • Safegraph Data Blog  --  GIS data stories from SafeGraph
  • SafeGraph Data Bar -- If you want to try SafeGraph data, you can use the code  Mapscaping for $500 free data, no credit card needed.  
  • Safegraph Docs Page is our extensive user-centric documentation and releases notes, data dictionaries, etc. so you can ramp up quickly when working with SafeGraph data. 
  • SafeGraph is on Twitter
  • Auren Hoffman, CEO at SafeGraph Auren's Twitter 
  • Ryan Fox Squire, Data Scientist at SafeGraph,Ryan'sQuora, Ryan's Twitter

 

This episode is sponsored by HiveMapper

A platform that takes video and creates 3D mapping layers based on that data. The video can be from avariety of different sensors, does not need to be vertically looking down on the geography and each 3D output is georeferenced!

 

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