Katja Hofmann is a researcher at the Machine Intelligence and Perception group at Microsoft Research Cambridge, where she is the lead researcher for Project Malmo. Using the popular game Minecraft as a platform, Project Malmo aims to develop artificial intelligences that can interpret complex environments and collaborate with other agents, including humans. A key goal of the project is to assist the broader research community in developing new approaches to reinforcement learning. Outside of Project Malmo, Katja works on applying machine learning to information retrieval in order to improve online search and recommendation systems.