The Second Pao-Lu Hsu Conference (2009): Machine Learning and Computational Recognition will be held on Xi’an Jiaotong University in Xi’an, China in the last week of June, 2009 (June 22-28). This is a joint event of the Institute for Information and system Science of Xi’an Jiaotong University (Zongben Xu Lab) and the Microsoft Lab on Statistics and Information Technology at Peking University (PKU MSRA Lab). This conference intends to promote machine learning and Computational Recognition in China. The audiences are expected to be faculty and students in Machine Learning and related fields from both inside and outside China.