=================================== Second Call For Papers Hypertext 2009 The Twentieth ACM Conference on Hypertext and Hypermedia http://www.ht2009.org/ Torino, Italy, June 29 - July 1, 2009 SCOPE The ACM Hypertext Conference is the main venue for high quality peer-reviewed research on "linking." The Web, the Semantic Web, the Web 2.0, and Social Networks are all manifestations of the success of the link. The Hypertext Conference provides the forum for all research concerning links: their semantics, their presentation, the applications, as well as the knowledge that can be derived from their analysis and their effects on society. Hypertext 2008, held in Pittsburgh, was a real success. The number of submissions and attendees was up, a successful Student Research Competition took place, and a rejuvenated social linking track added new ideas and connections to the traditional core of the conference. IMPORTANT DATES * Technical tracks paper submission deadline: February 2nd, 2009 * Notification to authors: March 16th, 2009 * Camera-ready (final papers to ACM): April 6th, 2009 LOCATION AND DATES Hypertext 2009 will be held from June 29th to July 1st at the Villa Gualino Convention Center, on the hills overlooking Torino. The capital of the Piedmont region, Torino lies at the foot of the Alps, the majestic mountains that hosted the 2006 Winter Olympics. First the capital of the Kingdom of Italy, then one of the European centers of baroque, today Torino is a dynamic city known for its industry, art and culture, sports, research and education, and cuisine. The timing of Hypertext 2009 provides an excellent opportunity to visit Italy in conjunction with the International Conference on User Modeling, Adaptation, and Personalization in Trento (UMAP 2009 - http://umap09.fbk.eu/), and the International Workshop and Conference on Network Science in Venice (NetSci 2009 - http://www.netsci09.net/). PROGRAM Hypertext 2009 will feature two stellar keynote speakers: Lada Adamic (University of Michigan) is a noted scholar of social networking and the winner of the 2008 Engelbart Award; Ricardo Baeza-Yates is Vice-President of Yahoo! Research for Europe and Latin America, leading the labs in Spain, Chile, and Israel. The attendees of Hypertext 2009 will also have a chance to experiment with applications mixing real-world data and on-line data. We will deploy active RFID tags in the badges of volunteers and run a data collection platform tracking the real-time relations of physical proximity between the attendees. The data collection and visualization systems will be provided by the SocioPatterns project (http://www.sociopatterns.org), and will expose API methods that allow developers to mash up real-world links between the attendees with other types of linking information from the Web. In the conference technical program, professionals from academia, industry, and the media will present innovative ideas and tools exploiting the broad range of links increasingly connecting people, information, communities, and structures. Research topics will be organized into three tracks: track 1. Information Structure and Presentation (Chairs: Peter Brusilovsky and Cristina Gena) track 2. People, Resources, and Annotations (Chairs: Andreas Hotho and Vittorio Loreto) track 3. Hypertext and Community (Chairs: Mark Bernstein and Antonio Pizzo) TRACK 1: INFORMATION STRUCTURE AND PRESENTATION Chairs: * Peter Brusilovsky, University of Pittsburgh (USA) * Cristina Gena, University of Torino (Italy) The information structure and presentation track represents a multitude of topics, which were traditionally represented at ACM Hypertext Conferences. The track program targets formal study of scholarly, structural, sculptural, spatial, open, dynamic and adaptive or any other type of hypertext (or Web-based Information System). This track also focuses on how hypertext approaches and technologies can be applied to structure and present information in diverse domains, and how hypertext techniques can be exploited in classical and advanced applications. The aim of this track is to bring researchers together to discuss models, architecture, applications, properties, or theory in general, about hypertext and hypermedia. Topics for consideration include: * Hypertext models * Spatial hypertext * Information structuring * Hypertext and knowledge management * Self-organized hypertext * Personal information organization * Intelligent hypertext and link generation * Navigation support * Open hypertext * Web and hypertext link analysis * Dynamic and adaptive hypertext * Hypertext and web engineering * Interfaces and interaction with hypertexts * Faceted browsing * Social navigation * Hypertexts supporting Web-based collaboration * Hypertext and recommender systems: the role of link in recommendations * Hypertext applications in everyday devices (TV, mobile phone, on board car service, etc.) * Educational hypertext and hypermedia * User evaluations of hypertext application * Hypertext and cultural heritage * E-books, kiosks, e-commerce, e-tourism * Hypertext application in medical and health systems For additional information on the track and the Program Committee, please visit http://www.ht2009.org/track1.php TRACK 2: PEOPLE, RESOURCES, AND ANNOTATIONS Chairs: * Andreas Hotho, University of Kassel (Germany) * Vittorio Loreto, Sapienza University of Rome (Italy) One of the most exciting recent developments in Web science is the rise of social annotation, by which users can easily markup other authors' resources via collaborative mechanisms such as tagging, filtering, voting, editing, classification, and rating. These social processes lead to the emergence of many types of links between texts, users, concepts, pages, articles, media, and so on. We welcome submissions on design, analysis, and modeling of information systems driven by social linking. Topics of interest include but are not limited to: * Applications to search, retrieval, recommendation, and navigation * Explicit vs. inferred social links (e.g. mining query logs) * Integration of different social networks (e.g. links between blogs and bookmarking systems) * Socially induced measures of similarity, relatedness, or distance * Co-evolution of social, information, and semantic networks * Analysis of the structure and the dynamics of social information networks * Behavioral patterns of social linking * Linguistic analysis of social annotation spaces * Formal and generative models of social annotation * Unstructured vs. structured social knowledge representations * Implementation and scalability of social link representations * Automatic and user-based evaluation * Emergent semantics in social networks * Robustness against spam and other forms of social abuse * Design of collaborative annotation mechanisms * Critical mass and incentives of social participation (e.g. games) * User interfaces for collaborative annotation For additional information on the track and the Program Committee, please visit http://www.ht2009.org/track2.php TRACK 3: HYPERTEXT AND COMMUNITY Chairs: * Mark Bernstein, Eastgate Systems, Inc. (UK) * Antonio Pizzo, University of Torino (Italy) The Hypertext and Community track will explore, examine, and reflect upon social cyberculture in electronic media, ranging from literary fiction and creative scholarship to blog and microblog networks, social sites, games, auctions, and markets. Topics will include: * Hypertext literature * Theory and practice of expression in wikis, weblogs, and social spaces * Personal journals, weblogs, and social media * Net art, literary hypertext, interactive fiction, and games * Behavioral patterns of social linking For additional information on the track and the Program Committee, please visit http://www.ht2009.org/track3.php SUBMISSIONS Papers must report new results substantiated by experimentation, simulation, analysis, or application. Authors are invited to submit papers presenting original, not previously published works. Submission categories may include regular research papers (max 10 pages) discussing mature work, and short papers (max 5 pages) describing preliminary results of on-going work or novel thought-provoking ideas. All submissions should be formatted according to the official ACM SIG proceedings template (http://www.acm.org/sigs/publications/proceedings-templates) and submitted via EasyChair (http://www.easychair.org/conferences/?conf=ht2009). Accepted papers will appear in the Hypertext 2009 Conference Proceedings and also be available through the ACM Digital Library. DEMOS AND INDUSTRIAL SESSION Technical demonstration of new tools and innovative applications of hypertext are solicited. One-page demo descriptions, including a list of any required supporting equipment, should be sent to by e-mail to Giancarlo Ruffo, Demo Chair (ruffo@di.unito.it). Important Demos Dates: * March 30th, 2009: Submission of proposals * April 15th, 2009: Notification to proposers * June 29th, 2009: Demo day WORKSHOPS ACM Hypertext 2009 will be running at least two workshops, taking place on the 29th of June before the start of the main conference. The purpose of the workshops is to provide a more informal setting where participants can exchange ideas on a focused topic and suggest directions for future research. As such, they also offer a good opportunity for (young) researchers to present their work and to obtain feedback from an interested community. Further information on accepted workshops will be found on the conference website. ORGANIZATION GENERAL CO-CHAIRS: Ciro Cattuto (ISI Foundation, Torino) and Giancarlo Ruffo (University of Torino) PROGRAM CHAIR: Filippo Menczer (Indiana University) WORKSHOPS CO-CHAIRS: Santo Fortunato (ISI Foundation, Torino) and Rossano Schifanella (University of Torino) TREASURER: Roberto Palermo (ISI Foundation, Torino)