I stopped caring about the estimates that occasionally raid the internet about how much time data scientists spend on data wrangling VS modelling. The answer is: probably a lot and likely more than originally planned (probably indicating here dependency on the state and richness of input data and the intended ...

Recently, I had a real pleasure to work with various types of data pulled from public APIs, one of them being data.police.uk API. Oh, those hours of pure intellectual exploration it’s given me! I have a soft spot for crime data and I explored it using heat ...

I’ve been asked more and more for hints and best practices when working with R. It can be a daunting task, depending on how deep or specialised you want to be. So I tried to keep it as balanced as I could and mentioned point that definitely helped me ...

I’ve been writing/talking a lot about LIME recently: in this blog/ at H20 meetup, or at coming AI Congress and I’m still sooo impressed by this tool for interpreting any, even black-box, algorithm! The part I love most is that LIME can be applied to both image ...

It will go without saying that I’m super excited about the premiere of another Star Wars movie and I’m not an exception. This, together with with Piotr Migdal’s challenge posted on Data Science PL group on Facebook where he suggested comparing word frequencies between two different sources. ...

I get bored from doing two things: i) spot-checking + optimising parameters of my predictive models and ii) reading about how ‘black box’ machine learning (particularly deep learning) models are and how little we can do to better understand how they learn (or not learn, for example when they take a ...

Have you ever wondered whether the most active/popular R-twitterers are virtual friends? :) And by friends here I simply mean mutual followers on Twitter. In this post, I score and pick top 30 #rstats twitter users and analyse their Twitter friends’ network. You’ll see a lot of applications of rtweet ...

The internet seems to be booming with blog posts on animated graphs, whether it’s for more serious purposes or not so much. I didn’t think anything more of it than just a gimmick or a cool way of spicing up your conference talk. However, I’m a total ...