Christian Prokopp holds a PhD in information retrieval and works as a data scientist at Rangespan. He spends his spare time as a columnist and blogger. He is passionate about data science and data-driven products, in particular about how they can solve real-world problems and add value to businesses. Before his current position, Christian was a Marie Curie Fellow, APAI researcher with an ARC project in Australia, consultant and project manager in Bangladesh, and IT manager and software engineer in Germany. You can read his blog, follow him @prokopp, and connect on Google+ and on LinkedIn.