I am the Heinz College Dean's Associate Professor at Carnegie Mellon University's Heinz College of Information Systems and Public Policy. I also hold courtesy appointments at the Machine Learning Department (MLD) and the Computer Science Department (CSD) of School of Computer Science (SCS).
    At Heinz, I direct the Data Analytics Techniques Algorithms (DATA) Lab.
    My research interests are in data mining, knowledge discovery, graph mining, machine learning, and online media analysis, with specific focus on identifying and characterizing patterns and anomalies in large-scale, time-varying, multi-modal data sources through scalable computational methods.