Erik Bernhardsson    About

Better precision and faster index building in Annoy

Sometimes you have these awesome insights. A few days ago I got an idea for how to improve index building in Annoy. For anyone who isn’t acquainted with Annoy – it’s a C++ library with Python bindings that provides fast high-dimensional...

Ping the world

I just pinged a few million random IP addresses from my apartment in NYC. Here’s the result: Some notes: What’s going on with Sweden? Too much torrenting? Ireland is likewise super slow, but not Northern Ireland Eastern Ukrain...

Black Box Machine Learning in the Cloud

There’s a bunch of companies working on machine learning as a service. Some old companies like Google, but now also Amazon and Microsoft. Then there’s a ton of startups: PredictionIO ($2.7M funding), BigML ($1.6M funding), Clarifai, e...

It’s called Berkson’s paradox!

As noted by multiple tweets, my previous post describes a phenomenon denoted Berkson’s paradox. Here’s another example: Why Are Handsome Men Such Jerks?

Pinterest open sources Pinball

Pinterest just open sourced Pinball which seems like an interesting Luigi alternative. There’s two blog posts: Pinball: Building workflow management (from 2014) and Open-sourcing Pinball (from this week). The author has a comment in th...