Duen Horng "Polo" Chau is a Ph.D. candidate in the Machine Learning Department at Carnegie Mellon University. He received a Masters in Human-Computer Interaction (HCI) from Carnegie Mellon.

Polo is working to bridge the fields of Data Mining and HCI. He develops tools that combine the best of both worlds to help people make sense of large graphs with billions of nodes and edges. His research interests span data mining, machine learning, information visualization and HCI.

Polo solves large-scale, real world problems that make impact to society. His NetProbe auction fraud detection system appeared on The Wall Street Journal, CNN, TV and radio. His Polonium malware detection technology (with Symantec, patent-pending) protects 120 million people worldwide.

Polo is the only two-time Symantec fellow. He received a Yahoo! Key Scientific Challenges Award. He contributes to the PEGASUS peta-scale graph mining that won an Open Source Software World Challenge Silver Award. Polo is also an award-winning designer. He designed Carnegie Mellon's ID card.