January 10, 2015
PAPIs.io 2014: Behind the scenes with a Predictive API
I gave a talk at in Barcelona at the PAPIs.io 2014 Predictive APIs conference last November.
December 2, 2014
Interactive Subreddit Map with t-SNE
For part of my presentation at Montreal Python, I made an interactive map of the various sub-sections of the website Reddit (called subreddits). You can take a look at the interactive version or see a static annotated one above. The interactive one includes basic info on how I made it and full details are in the presentation. I got some nice comments in the /r/DataIsBeautiful subreddit post
December 1, 2014
Montreal Python: Unsupervised ML with scikit-learn
I gave a talk at Montreal Python on Data Science and Unsupervised Machine Learning with scikit-learn. The video is above and I posted all of my presentation materials online.
November 10, 2014
Arbitraging an RTB Exchange
Last week, Bloomberg came out with an article on RTB arbitrage, which included a couple of sentences that made it sound a lot like it was possible to front-run an RTB auction: “Some buy from an exchange and sell it right back to that very same exchange” and “Some agencies are poorly connected to exchanges and can’t respond to a first auction in time, allowing middlemen to buy and flip within the same market”. This seemed surprising to me at first, given that all auction participants (as far as I know) get the same opportunity to bid on an impression, so how could you make money buying and selling the same impression on the same exchange? Upon further thought, however, here’s a theory about how it might work.
September 22, 2014
VisMtl: Maps, Tools, Stories
I gave a talk at Visualization Montréal entitled Maps, Tools, Stories. Check out the synced slides and video!