Erik Bernhardsson    About

Looking for smart people

I haven’t mentioned what I’m currently up to. Earlier this year I left Spotify to join a small startup called Better. We’re going after one of the biggest industries in the world that also turns out to be completely broken. The mortgage ...

MCMC for marketing data

The other day I was looking at marketing spend broken down by channel and wanted to compute some simple uncertainty estimates. I have data like this: Total spend Transactions ...

Interview with a Data Scientist: Erik Bernhardsson

I was featured in Peadar Coyle’s interview series interviewing various “data scientists” – which is kind of arguable since (a) all the other ppl in that series are much cooler than me (b) I’m not really a data scientist. Anyway, repostin...

Nearest neighbor methods and vector models – part 1

This is a blog post rewritten from a presentation at NYC Machine Learning last week. It covers a library called Annoy that I have built that helps you do (approximate) nearest neighbor queries in high dimensional spaces. I will be splitt...

Presentations about Spotify music recommendations

A couple of people in my old team have been around talking about how Spotify does music recommendations and put together some quite good presentations. First one is Neville Li’s presentation about Scala Data Pipelines @ Spotify: The se...