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Fangjin Yang

Fangjin Yang
CEO, Imply

One of Metamarkets’ first developers on Druid, their database platform, Fangjin is responsible for core infrastructure development including real-time data ingestion. He joined Metamarkets from Cisco where he optimized packet diagnostic algorithms for Cisco’s flagship Cat6k router. Previous to this Fangjin held various engineering and architecture roles at Ericsson and Barclay’s Capital. He holds a BASc in Electrical Engineering and a MASc in Computer Engineering from the University of Waterloo, Canada.


Hardcore Data Science Gramercy Suite
Fangjin Yang (Imply), Nelson Ray (Metamarkets)
Average rating: ****.
(4.00, 8 ratings)
Many exact queries require computation and storage that scale linearly or superlinearly in the data. However, many classes of problems exist for which exact query results are not necessary. We describe the roles of various approximation algorithms that allow Druid, a distributed datastore, to increase query speeds and minimize data volume while maintaining rigorous error bounds on the results. Read more.
Office Hour Table E
Fangjin Yang (Imply), Nelson Ray (Metamarkets)
In our talk, we discussed strategies and algorithms that enable fast, approximate queries over large quantities of data. This is accomplished via substantial pre-computation at ETL, sketching data structures, and distributed computation with an analytic database (Druid, in our case). We'd love to engage with our audience on any of those topics. Read more.


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