Tianhuan (Brian) Lu is a graduate student at Columbia University. He received his B.S. in Physics from Shanghai Jiao Tong University (China). His research in Astronomy focuses on studying dark matter and dark energy through gravitational weak lensing, analyzing simulation and observational data in particular. He is currently studying the impact of baryonic matter on weak lensing signals. He has also analyzed and modelled LINCS L1000 data to extract robust gene expression signatures.