Catherine NelsonCatherine Nelson is a freelance data scientist and writer. Previously, she was a principal data scientist at SAP Concur, where she delivered production machine learning applications and developed innovative new features using NLP. She is also coautho of the O'Reilly publication Building Machine Learning Pipelines, and she is an organizer for Seattle PyLadies, supporting women who code in Python. In her previous career as a geophysicist she studied ancient volcanoes and explored for oil in Greenland. Catherine has a PhD in geophysics from Durham University and a Masters of Earth Sciences from Oxford University. Read More Read Less