At mobile.de, Germany’s biggest car marketplace, a dedicated team of data engineers and scientists, supported by the IT project house inovex is responsible for creating intelligent data products. Driven by our company slogan “Find the car that fits your life”, we focus on personalised recommendations to address several …

In the field of machine learning and particularly in supervised learning, correlation is crucial to predict the target variable with the help of the feature variables. Rarely do we think about causation and the actual effect of a single feature variable or covariate on the target or response. Some even …

Sometimes the analytical power of built-in Hive functions is just not enough. In this case it is possible to write hand-tailored User-Defined Functions (UDFs) for transformations and even aggregations which are therefore called User-Defined Aggregation Functions (UDAFs). In this post we focus on how to write sophisticated UDFs and UDAFs …

This talk presented at the EuroPython 2016 introduces several Python libraries related to the handling of GPS data. The slides of this talk are available on Github or on nbviewer.

It is a widely accepted fact that we are living in the era of Big Data. Many traditional companies are looking for ways to improve their business through the virtues of Big Data and Data Science. While matured startups born in this era like Facebook and Twitter seem to naturally …