Now I lead the Data Analytics Research team, research directions spanning machine learning, multi-dimensional data mining, explainable AI, causal inference, graph models, and their applications in tabular data intelligence, survey forms analytics, and software engineering. Key technologies have been/are being shipped to Office (Excel, Forms, Word), Power BI & Dynamics, Windows, and Bing Search. I would like to summarize my research in the past 15 years as using data-driven techniques to enable industry-leading features of Microsoft products.