Community Detection with Louvain and Infomap

Niklas Junker Blog, Data Science

The number of different products and customers in any business area are practically infinite.
But how can you find interactions between them like joint purchases and define groups? One solution is the so-called Community Detection. In this blog post, I want to show you the magic behind Community Detection and give you a theoretical introduction into the Louvain and Infomap algorithm.


Dynamic UI Elements in Shiny – Part 2

Oliver Guggenbühl Blog, Data Science

Continuing our effort of applying the principles of reactivity to the UI part of a ShinyApp, this blog introduces two ways of conditionally rendering UI-elements in your app. Both presented solutions accomplish the same goal, once from the server part and once from the UI part of your application.


Tuning Random Forest on Time Series Data

Manuel Tilgner Blog, Data Science

Training random forests on time series is one thing, but tuning them? It’s not like you can just apply cross validation and be done with it. Or can you? This post forms part two our mini-series “Time Series Forecasting with Random Forest”. Find out how you can tune the hyperparameters of the random forest algorithm when dealing with time series data. The answers might surprise you!