My research is mostly problem-driven and has its roots in both scientific and engineering applications. These problems arise from astronomy, brain imaging, computer experiment, and recommender system. And many of them involve modern data complications such as enormous volume, large dimensionality, and manifold structures. Broadly speaking, I tackle them with low-rank and/or nonparametric modeling, combining with efficient computational techniques.
My research has been graciously supported by NASA, NSF and USDA-NIFA.