Nivio Ziviani has a Ph.D. in Computer Science from the University of Waterloo, Canada, 1982. He is a Professor of the Department of Computer Science of the Federal University of Minas Gerais (UFMG), Brazil, where he coordinates the Laboratory for Treating Information (LATIN). He is a Professor Emeritus of the Institute of Exact Sciences of UFMG. He is a co-founder of Miner Technology Group, sold to Folha de São Paulo / UOL group in 1999, and Akwan Information Technologies, sold to Google Inc. in 2005. He has co-authored of over 100 refereed papers and 2 books in the areas of algorithm design and information retrieval, the latter his primary area of research. He was General Co-Chair of the 28th ACM SIGIR Conference on Research and Development in Information Retrieval and co-founder of the International Conference on String Processing and Information Retrieval (SPIRE).
Andrew joined Yahoo! Research in 2005 from IBM. His research over the last eight years has focused on measurement, modelling, and analysis of content, communities, and users on the World Wide Web. Prior to joining Yahoo! Research, he managed the "Information Management Principles" group at IBM's Almaden Research Center, and served as Chief Scientist on the WebFountain project. Andrew received Bachelors degrees in Mathematics and Computer Science from MIT, and a PhD in CS from Carnegie Mellon University.
Professor Justin Zobel is leading the Computing for Life Sciences initiative within National ICT Australia's Victorian Laboratory. He received his PhD from the University of Melbourne and for many years was based in the School of CS&IT at RMIT University, where he led the Search Engine group. He is an Editor-in-Chief of the International Journal of Information Retrieval, an associate editor of ACM Transactions on Information Systems and of Information Processing & Management, and was until recently Treasurer of ACM SIGIR. In the research community, he is best known for his role in the development of algorithms for efficient text retrieval. He is the author of "Writing for Computer Science" and his interests include search, bioinformatics, fundamental data structures, and research methods.