Workshop Program

Thursday, June 6 14:00-15:10 Invited talk How Your Dog Can Publish Your Secrets Anonymously and Why There's Probably Nothing You Can Do About It Lorrie Faith Cranor, AT&T Labs - Research Quotations about the Internet's ability to resist censorship and promote anonymity have become nearly cliche. John Gillmore's quote "The Net treats censorship as damage and routes around it" has been interpreted as a statement that the Internet cannot be censored. And Peter Steiner's famous New Yorker cartoon captioned "On the Internet, nobody knows you're a dog" has been used to hype the Internet as a haven of anonymity. But, increasingly, people have come to learn that unless they take extraordinary precautions, their online writings can be censored and the true identity behind their online pseudonyms revealed. There are many valid reasons for publishing a document in an anonymous and/or censorship-resistant manner. Unfortunately, few tools exist that facilitate this form of publishing. In this talk I will discuss the rationale and design goals of censorship-resistant publishing systems. I will discuss several such systems, most of which function (at least partially) as peer-to-peer systems. Some of the ideas behind these systems have application in other distributed publishing situations, even if censorship-resistance isn't a specific requirement. I will focus on Publius, a censorship-resistant publishing system developed at AT&T Labs. Content published with Publius is very difficult to censor or modify. Users can browse Publius content using a standard web browser and a client-side or remote proxy. I will also discuss some of the policy issues related to Publius and similar systems. Dr. Lorrie Faith Cranor is a Principal Technical Staff Member in the Secure Systems Research Department at AT&T Labs-Research Shannon Laboratory in Florham Park, New Jersey. She is chair of the Platform for Privacy Preferences Project (P3P) Specification Working Group at the World Wide Web Consortium. Her research has focused on a variety of areas where technology and policy issues interact, including online privacy, electronic voting, and spam. 15:30-16:50 Constraint and Type Languages XQuery/IR: Integrating XML Document and Data Retrieval J.-M. Bremer, M. Gertz Constraints preserving schema mapping from XML to relations Y. Chen, S. Davidson, Y. Zheng Types for Correctness of Queries over Semistructured Data D. Colazzo, G. Ghelli, P. Manghi, C. Sartiani The Query Language TQL G. Conforti, G. Ghelli, A. Albano, D. Colazzo, P. Manghi, C. Sartiani 17:00-18:00 Caching Semantic Caching of XML Databases V. Hristidis, M. Petropoulos XCache: XQuery-based Caching System L. Chen, E. Rundensteiner On space management in a dynamic edge data cache K. Amiri, R. Tewari, S. Park, S. Padmanabhan Friday, June 7 08:00-09:00 Continental Breakfast 09:00-10:20 Structure What are real DTDs like? B. Choi ToXgene: An extensible template-based data generator for XML D. Barbosa, A. Mendelson, J. Keenleyside, K. Lyons Detecting Structural Similarities between XML Documents S. Flesca, G. Manco, E. Masciari, L. Pontieri, A. Pugliese Evaluating Structural Similarity in XML Documents A. Nierman, H.V. Jagadish 10:40-11:40 Query Evaluation Techniques Obtaining More Answers from Information Integration Systems G. Grahne, V. Kiricenko Learning Efficient Value Predictors for Speculative Plan Execution G. Barish, C. Knoblock View Selection for Stream Processing A. Gupta, A. Halevy, D. Suciu 11:40-13:00 Lunch (included) 13:00-14:00 New Ideas Data Management for Peer-to-Peer Computing : A Vision P. Bernstein, F. Giunchiglia, A. Kementsietsidis, J. Mylopoulos, L. Serafini, I. Zaihrayeu Distributed queries without distributed state V. Papadimos, D. Maier Cryptographically Enforced Conditional Access for XML G. Miklau, D. Suciu 14:00 Adjourn