Robert Birke received his European Ph.D. in Electronics and Communications Engineering from the telecommunication group at Politecnico di Torino, Italy, in 2009. His work centers on virtual resource management for large scale data centers, aiming at optimizing the application latency, system throughput, and resource efficiency, particularly energy. His research focus particularly spreads on network design, workload characterization, and big data optimization. His recent focus is to optimize distributed applications in data centers, particularly on the aspect of applying speculative and approximate computing to both big data platforms, i.e. Spark, and classic multi-tier systems.