[ start ]
[picture taken from Hendler et al.'s Web Science article]
[ workshop tag cloud ]
Access Control Adaptation Aggregation Dataportability Extensibility Facebook Flickr FOAF Interoperability Linking Linked Data Mash-ups Microformats Privacy User Modeling User Profiles Reusability Semantic Web SIOC Social networks Social Web Syndication Trust Twitter Web 2.0


Main workshop proceedings: uweb2011-main-proceedings.pdf. Position papers will be online soon. The workshop will take place on Monday, May 30th in the afternoon (room: KALIA).

time presentation
14:30-14:45 Welcome and Introduction
14:45-15:10 Ambiguity in Tagging and the Community Effect in Searching Relevant Resources in Folksonomies
S. Beldjoudi, H. Seridi, C. Faron-Zucker
15:10-15:35 TUMS: Twitter-based User Modeling Service
K. Tao, F. Abel, Q. Gao, G.-J. Houben
15:35-16:00 Forecasting Audience Increase on YouTube
M. Rowe
16:00-16:30 coffee break
16:30-16:55 Sensing Presence (PreSense) Ontology - User Modelling in the Semantic Sensor Web
A.E. Cano, A.-S. Dadzie, V.S. Uren, F. Ciravegna
16:55-17:10 Semantic Social Profile - a Semantic Boost for the Social Information in MediaWiki (short paper)
Y. Katkov, D. Pokoptsev
17:10-18:10 Position Paper Session and Discussion Authors of position paper will have 5 min to pitch their idea and start the discussion.


Social Web sites, such as Facebook, YouTube, Delicious, Flickr and Wikipedia, and numerous other Web applications, such as Google and Amazon, rely on implicitly or explicitly collected data about their users and their activities to provide personalized content and services. As these applications become more and more connected, a major challenge is to allow various applications to exchange, reuse, and integrate user data from different sources. The amount of user data available on the Web is tremendously growing and reasoning on such heterogeneous user data distributed across the Web, i.e. exploiting user data on the Web, is a non-trivial problem that poses several challenges to the Semantic Web community.

While the linking of user data provides advantages for recommendation and personalization, it also raises questions related to provenance, trust and privacy: how does one know that the data gathered from several sources can be trusted, and how can one avoid that sensitive personal data is disclosed to certain services or used to infer and expose sensitive information? Trust and privacy, and associated policies, may therefore impact reasoning on user data.

This workshop aims to discuss research on user data in the Social Semantic Web from both angles:

UWeb joins the SPOT and LUPAS workshops from ESWC 2010 and provides a forum for academic and industrial researchers and practitioners in the fields of the Social and Semantic Web, trust, privacy, user modeling, and personalization to discuss theoretical and practical knowledge, open research issues, applications, and experiences.



The workshop will tackle challenges posed by linking user data on the Social Semantic Web, including, but not limited to, the following themes:


Paper Submissions

All papers must represent original and unpublished work that is not currently under review. Papers will be evaluated according to their significance, originality, technical content, style, clarity, and relevance to the workshop. At least one author of each accepted paper is expected to attend the workshop.

We welcome the following types of contributions.

All submissions must be written in English and must be formatted according to the information for LNCS authors: Information for LNCS Authors. Please submit your contributions electronically in PDF format at


The main workshop proceedings will be published as a volume at CEUR Workshop Proceedings. Further, we try to prepare a special issue at a journal (descision is pending), for which we would like to consider extended versions of the best papers as well.

Authors of best papers will further be invited to publish an extended and revised version (i) in a joint post-proceedings volume of the Lecture Notes in Computer Science that will include the ESWC 2011 workshop highlights or in a special issue of the Semantic Web Journal on The Personal and Social Semantic Web.


Program Committee