You got me thinking about Watson and its unprecedented flexibility in analyzing different data sources (at least according to IBM). So how difficult it would be to analyse sentiment of one of my favorites books using R? Pretty easy actually - all thanks to new package tidytext by Julia Silge ... [Read more...]

Multilayer perceptron Multilayer perceptron (MLP) is the simplest feed-forward neural network. It mitigates the constraints of original perceptron that was able to learn only linearly separable patterns from the data. It achieves this by introducing at least one hidden layer in order to learn representation of the data that would ... [Read more...]

on example of Candy Crush Saga adoption - [Read more...]

using Accept-Reject method - Shifted Gompertz distribution Shifted Gompertz distribution is useful distribution which can be used to describe time needed for adopting new innovation within the market. Recent studies showed that it outperforms Bass model of diffusion in some cases1. Its pdf is given by Below we show what ... [Read more...]