Ruben Mak, Team Lead Data Science at Greenhouse Group showed a live demo of a light-weight recommendation algorithm for banner ads, built using Snowplow, which measures viewable time and optimizes dynamic content. The demo is aimed at challenging people to think in a different way about retargeting and making offers more personally relevant. He also mentioned Eneco, one of the Netherlands’ largest energy providers, as an example of how they optimise their marketing communications across the customer journey. Presented on 5 April 2017.