Publications by Bogumił Kamiński
Sequence generation in R, Python and Julia
Recently I was comparing implementation of sequence generation functions in R, Python (numpy) and Julia. Interestingly even such basic functions have slight differences in implementation. In my opinion Julia provides the best solution and Python the worst.The test case will be a 6 element sequence from 0.1 to 1.1 namely [0.1, 0.3, 0...
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Telco churn prediction with R+H2O
Recently together with my friend Wit Jakuczun we have discussed about a blog post on Revolution showing application of SQL Server R services to build and run telco churn model. It is a very nice analysis and we thought that it would be interesting to compare the results to H2O, which is a great tool for automated building of predicti...
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R+H2O for marketing campaign modeling
My last post about telco churn prediction with R+H2O attracted unexpectedly high response. It seems that R+H2O combo has currently a very good momentum :). Therefore Wit Jakuczun decided to publish a case study that he uses in his R boot camps that is based on the same technology stack.You can find the shortened version of the case s...
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Deep learning in the cloud with MXNet
Last Friday together with Przemysław Szufel and Wit Jakuczun we were giving a live demo on introduction to deep learning at Digital Champions conference.The objective of the workshop was to show how to build a simple predictive model using MXNet library in a few minutes. In the example, we train a model on GPUs using a standard MNIS...
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Optimization matchup: R’s glpkAPI vs Julia’s JuMP
tl;dr: although I use R every day and love it, doing mathematical programming using Julia is much simpler and more flexible than anything I know that is currently available in R.Recently I have learned that Iain Dunning and Joey Huchette and Miles Lubin have received 2016 INFORMS Computing Society prize for the development of JuMP, a ...
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Test-driving Microsoft Cognitive Toolkit in R using reticulate
Recently new tools for data science pop up constantly, so it is hard to keep up with the changes and choose those that promise to be useful in the long run.Recently two new solutions were announced that look very promising: reticulate package for R and Microsoft Cognitive Toolkit 2.0 (CNTK). Together with Wit Jakuczun we have decided...
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Julia vs R and Python: what does Stack Overflow Developer Survey 2017 tell us?
TLDR: Most Julia programmers also use Python. However, most R programmers also use Julia.Recently Stack Overflow has made public the results of Developer Survey 2017. It is definitely an interesting data set. In this post I analyzed the answers to the question “Which of the following languages have you done extensive development wor...
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