Mat Brown, lead engineer at Genius, spoke at FirstMark Capital’s Code Driven NYC on December 16, 2015. He discussed how Genius uses fuzzy matching to correctly annotate webpages that change over time.

Genius is an online knowledge project that breaks down information with line-by-line annotations, added and edited by anyone in the world.

Code Driven NYC is a community organized by FirstMark that brings together leading developers from across the tech ecosystem to learn, get inspired, and have fun. Join the group at or find out more at