I am a fourth year Ph.D. candidate of School of Computing, at Universtiy of Utah; I'm working under supervision of Jeff Phillips. My research focuses on desigining low-rank approximations to matrices, mostly in streaming/online data models. Other subjects I am interested in are dimensionality reduction, machine learning, approximation algorithms. I received my B.E. and M.E. in Software Engineering, specializing in Data Mining in Computer Engineering department of Sharif University of Technology.