Freebase and the Google Knowledge Graph
Under paid contract with Metaweb Technologies, I designed graph database type and property models for Freebase, the open structured knowledge base. Google acquired Metaweb in 2010. The contract work modeled the motorcycle domain. On my own initiative, I tested the platform and built types and properties for bird species-habitat and trait relationships, then presented at scientific conferences on what that structure made possible for ecological data.
Why it matters: Machines reason over typed relationships, not prose. Freebase taught me to build the structure first and let the applications come to it.