Collection of presentations and memos.

August 2015

Charts with a second axis

Short document explaining with an example why adding a second axis to a chart is often not a good solution for the actual problem.

January 2015

Locality Sensitive Hashing

Presentation about locality sensitive hashing, with pragmatic applications demonstrated in SQL.

October 2014

Column Stores

Presentation about how column stores work (as compared to row stores), with a focus on PostgreSQL and MonetDB.