I am a Senior Scientist in the Department of Mathematics at ETH Zürich. In my research I develop and apply topological methods to analyze data from a variety of disciplines. These methods either measure the shape of the data set, that is, count the occurrences of patterns within it, or they build a combinatorial representation of its shape that can be combined with other methods. I collaborate with researchers from a variety of fields including topology, algebraic geometry, probability, statistics, and computer science, and also with experimental scientists.