Pu-Jen Cheng received his Ph.D. in Computer Science at National Chiao Tung University in 2001. He went to the Institute of Information Science, Academia Sinica, as a Postdoctoral Fellow for more than four years (2001~2006). Starting from August 2006, he joined the department of Computer Science and Information Engineering faculty at the National Taiwan University, and also jointly appointed as a assistant professor of the Graduate Institute of Networking and Multimedia, National Taiwan University.

Prof. Cheng's current research interests include Information Retrieval, Web Mining, and Multimedia Databases. He usually served as a committee member in IR related international conferences, such as a PC member of SIGIR'08, AIRS'08, ICADL'08, SIGIR'07, EMNLP-CoNLL'07 and ICADL'07. He was a recipient of the 2007 Google Research Award. He is also a member of the ROC Phi Tau Phi Scholastic Honor Society and the ACM/SIGIR.