Changqing LiChangqing Li is currently a Postdoctoral Associate in Duke University, U.S.A. He received his Ph.D. Degree in Computer Science from National University of Singapore, and Master Degree from Peking University. Dr. Li has been working on XML query and udate processing, and text processing and search. He has published 20 papers. He is an editor of this book, and his publications also appear in top international database journals and conferences. Particularly his paper was one of the two candidates for the Best Student Paper Award in a top international database conference ICDE'06. Dr. Li was a member of the Program Committees of International Conferences CIKM, DEXA, and KDIR. He was also a reviewer of journals and conferences TKDE, ACM SIGMOD, VLDB, ICDE, WWW, ACM GIS, etc. Read More Read Less