Linear, tree, forest and support vector regression: comparison, source code and ready-to-use app — In this article I am going to walk you through the process of building, training and evaluating a prediction model for the number of ad impressions delivered in a digital marketing campaign. All the techniques can be analogously applied to other regression problems, especially to predict various campaign performance metrics…

Split test vs. multi-armed bandit: simulation, source code and ready-to-use app — This article discusses the differences of A/B or Split tests and multi-armed bandits for variant testing. It can be used to e.g. choose the best performing set of ads for a digital marketing campaign. Simulating and measuring the performance of both methods in various experiments shows that in most scenarios…