Data Science Austria

Employee Turnover: a Risk Segmenting Investigation

In this post, I conduct a simple risk analysis of employee turnover using the Human Resources Analytics data set from Kaggle. I describe this analysis as an example of simple risk segmenting because I would like to have a general idea of which combination of employee characteristics can provide evidence … Read moreEmployee Turnover: a Risk Segmenting Investigation

Build your own neural network classifier in R

Jun M.BlockedUnblockFollowFollowing Apr 28 ​Introduction Image classification is one important field in Computer Vision, not only because so many applications are associated with it, but also a lot of Computer Vision problems can be effectively reduced to image classification. The state of art tool in image classification is Convolutional Neural … Read moreBuild your own neural network classifier in R

Survival analysis and the stratified sample

Part II: Case-control sampling and regression strategy Due to resource constraints, it is unrealistic to perform logistic regression on data sets with millions of observations, and dozens (or even hundreds) of explanatory variables. Luckily, there are proven methods of data compression that allow for accurate, unbiased model generation. Traditional logistic … Read moreSurvival analysis and the stratified sample

Understanding Bayesian Inference with a simple example in R!

 Hi there! Last summer, the Royal Botanical Garden (Madrid, Spain) hosted the first edition of MadPhylo, a workshop about Bayesian Inference in phylogeny using RevBayes. It was a pleasure for me to be part of the organization staff with John Huelsenbeck, Brian Moore, Sebastian Hoena, Mike May, Isabel Sanmartin and … Read moreUnderstanding Bayesian Inference with a simple example in R!