Biostatistics and Bioinformatics have been playing very important roles in scientific research fields in recent years. The goal of the 4th workshop is to stimulate research and to foster the interaction of researchers in Biostatistics & Bioinformatics research areas. The keynote speaker is Professor Xiao-Li Meng, Harvard University. The workshop will provide the opportunity for faculty and graduate students to meet the top researchers, identify important directions for future research, facilitate research collaborations.