Keynote slides available at the bottom of this page
Jan BorchersJan Borchers
is professor of computer science and head of the Chair for
Media Computing at RWTH Aachen University in Germany, after holding
faculty positions at ETH Zurich and Stanford University. He is
interested in human-computer interaction, in particular interfaces for
smart environments, ubiquitous, wearable and physical computing,
interactive exhibits, and time-based media such as audio and video. He
has published the first book on HCI design patterns, several other book
chapters, and some eighty other articles at conferences such as ACM
CHI, ACM DIS, NIME, or ICMC, and in journals such as ACM interactions,
IEEE Multimedia, and others. His group is Germany's best-published
research group in terms of archival CHI publications over the last 5
years, and just received several awards at this year's CHI conference.
In his spare time, he enjoys playing jazz piano and tinkering on
As new interactive systems evolve, they frequently hit a sweet spot: A few new tricks to learn, and users gets tremendous benefits, simplifying their lives. But beyond that lies the dark phase of baroque technology: increasing complexity with little pay-off. We will look at examples for both sweet-spot and baroque interactive technologies, from GPS devices to window systems, nd out how to identify each kind, and become better interaction designers in the process.
Peter Brusilovsky has been working in the field of adaptive hypermedia and adaptive Web-based systems for more than 20 years. He published numerous papers and edited several books on adaptive hypermedia and the adaptive Web. Dr. Brusilovsky is currently an Associate Professor of Information Science and Intelligent Systems at the University of Pittsburgh, where he directs Personalized Adaptive Web Systems (PAWS) lab. He was also holding visiting faculty appointments at the Moscow State University (Russia), Sussex University (UK), Tokyo Denki University (Japan), University of Trier (Germany), Free University of Bolzano (Italy), National College of Ireland, and Carnegie Mellon University (USA). Dr. Brusilovsky is a board member of several journals including User Modeling and User Adapted Interaction, ACM Transactions on the Web, and Web Intelligence and Agent Systems. He is also the current President of User Modeling Inc., a professional association of user modeling researchers. He was involved in the organization of the first Adaptive Hypermedia conference and chaired several conferences and workshops on adaptive hypermedia, hypertext, adaptive Web-based systems, and user modeling.
Adaptive Navigation Support for Open-Corpus Hypermedia Systems
Open corpus adaptive hypermedia could be considered one of the major challenges of the adaptive hypermedia community since it can dramatically extend the range of applicability of adaptive hypermedia systems. An open corpus adaptive hypermedia system can be defined in as an "adaptive hypermedia system which operates on an open corpus of documents, e.g., a set of documents that is not known at design time and, moreover, can constantly change and expand". For the last five years open corpus adaptive hypermedia has been one of the priorities of our research group at the University of Pittsburgh. The goal of this presentation is to discuss the problems of open corpus adaptive hypermedia, review major approaches for developing adaptive navigation support for open corpus AHS system, and report our experience with some of these approaches
John RiedlJohn Riedl
specializes in collaborative filtering, systems, and information filtering. He also often speaks as an expert on the topic of online social networks. In 2006, he was named a Senior Member of the IEEE and also won the Best Paper Award at the Computer Supported Cooperative Work (CSCW) Conference. Riedl has also received the Commerce Technology Award, The MIT Sloan School Award for Innovation in E-Commerce, and at least half a dozen teaching awards. Riedl has served on many program committees and has authored more than 50 publications, including one book, journal and conference papers, short articles and book chapters. He is a member of the ACM and IEEE organizations, and an Editorial Board member for the Journal of Electronic Commerce Technologies.
Altruism, Selfishness, and Destructiveness on the Social Web
Many online communities are emerging that, like Wikipedia, bring people together to build community-maintained artifacts of lasting value (CALVs). What is the nature of people's participation in building these repositories? What are their motives? In what ways is their behavior destructive instead of constructive? Motivating people to contribute is a key problem because the quantity and quality of contributions ultimately determine a CALV's value. We pose three related research questions: 1) How does intelligent task routing - matching people with work - affect the quantity of contributions? 2) How does reviewing contributions before accepting them affect the quality of contributions? 3) How do recommender systems affect the evolution of a shared tagging vocabulary among the contributors? We will explore these questions in the context of existing CALVs, including Wikipedia, Facebook, and MovieLens.