Mahnaz Roshanaei is a research scientist in the Department of Communication at Stanford University, with a research interests lie in the area of computational social science, a discipline at the intersection of computer science, statistics, and the social science. Mahnaz takes the statistical and machine learning approaches to study and understand behavioral, network and smartphone-based data. In her current work, she examines how psychological characteristics (e.g., demographic, personality traits) and daily social behaviors (e.g., interactions, activities) can change the subsequent well-being. She is also studying whether the quality of social connections can reduce the risk of negative well-being outcomes. Mahnaz holds a PhD in Computer Sciences from University of Colorado, Boulder. She was a Postdoctoral Fellow in the Department of Computer Science at The University of Illinois at Chicago prior to joining Stanford. She is broadly interested in applied machine learning, causal inference, digital Phenotyping, and social network and social media analysis.