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https://ceur-ws.org/Vol-1210/SP2014_Preface.pdf
HT'14 Workshop / SP 2014: First International
Workshop on Social Personalization
- Preface -
This year we commemorate 25 years of the invention of the World Wide Web by Tim Berners-Lee
in the CERN, an invention that has shaped our lives in the last decades. Several changes have
occurred since its inception and one of most significant ones is the notion of a Personalized and
Adaptive Hypermedia. Another important trend that has had an enormous impact in the last
decade is the Social Web. Though several conferences and workshops already focus on these
topics, in this 1st International Workshop on Social Personalization we merge these trends into
one event, where Social context plays a fundamental role on the fields of User Modeling,
Personalization and Recommendations. This combined topic is important because it involves
leveraging new sources of information that are specific for social systems such as shared items and
tags, user public profiles, social connections, and logs of user social activities in order to improve
people's information access in a wide variety of tasks and across different devices. These social
information sources offer social personalization systems a chance to compensate for the lack of
information and structure that is used by traditional personalization technologies ranging from
recommender systems to E-learning. Thus, the goal of this workshop is to share and discuss
research that goes hopefully beyond classic personalization techniques, trying to capitalize
potentially useful information available in social data for paving the way to more efficient
personalized information access technologies.
Overall, we are grateful of the participation of the research community interested in this topic. The
call for papers attracted 15 submissions, from which we accepted seven as regular papers and five
as posters based on a rigorous reviewing process. Additionally, the workshop features the invited
talk of Luca Maria Aiello from Yahoo! Research. The accepted papers cover a variety of topics,
including social media and social tagging systems, group recommendation, event-based analysis,
visualization and sentiment analysis.
We thank all participants of the workshop for their contributions and ACM and the organizers of
the HT 2014 conference for their support, especially Luca Maria Aiello, our invited keynote
speaker. We also want to thank our reviewers for their careful help in selecting and improving the
provided submissions. We hope that you will find this program interesting and thought-provoking
and that the workshop will provide you with a valuable opportunity to share ideas with other
researchers and practitioners from institutions around the world. We are looking forward to a very
exciting and interesting workshop.
Peter Brusilovsky Leandro Balby Marinho Denis Parra
University of Pittsburgh UFCG PUC Chile
Pittsburgh, PA, USA Campina Grande, Brasil Santiago, Chile
Eliana Scheihing Christoph Trattner
UACh Chile Know-Center, TU-Graz
Valdivia, Chile Graz, Austria
HT’14 Social Personalization 2014 Workshop
Program
1. Emanuel Lacic, Dominik Kowald, Paul Seitlinger, Christoph Trattner and Denis
Parra. Recommending Items in Social Tagging Systems Using Tag and Time
Information (Full Paper)
2. Augusto Queiroz de Macedo and Leandro Balby Marinho. Event
Recommendation in Event-based Social Networks (Full Paper)
3. Eduardo Graells-Garrido, Mounia Lalmas and Ricardo Baeza-Yates. Sentiment
Visualisation Widgets for Exploratory Search (Full Paper)
4. Smitashree Choudhury and Harith Alani. Personal Life Event Detection from
Social Media (Twitter) (Full Paper)
5. Sarik Ghazarian, Nafiseh Shabib and Mohammadali Nematbakhsh. Improving
Sparsity Problem in Group Recommendation (Full Paper)
6. Paulo Cavalin, Maira Gatti and Claudio Pinhanez. Towards Personalized Offer by
Means of Life Event Detection on Social Media and Entity Matching (Full Paper)
7. Simen Fivelstad Smaaberg, Nafiseh Shabib and John Krogstie. A User-Study on
Context-aware Group Recommendation for Concerts (Full Paper)
8. Michal Kompan and Maria Bielikova. Voting Based Group Recommendation:
How Users Vote (Poster)
9. Dirk Ahlers and Mahsa Mehrpoor. Semantic Social Recommendations in
Knowledge-Based Engineering (Poster)
10. Jordan Barría, Eliana Scheihing and Denis Parra. Visualizing Student
Participation in a Collaborative Learning Environment (Poster)
11. Petr Saloun, Adam Ondrejka and Ivan Zelinka. Estimating Users' Areas of
Research by Publications and Profiles on Social Networks (Poster)
12. Marharyta Aleksandrova, Armelle Brun, Anne Boyer and Oleg Chertov. What
about Interpreting Features in Matrix Factorization-based Recommender Systems
as Users? (Poster)
HT’14 Social Personalization 2014 Workshop
Organization
Workshop Chairs: Peter Brusilovsky (University of Pittsburgh, USA)
Leandro Balby Marinho (Universidade Federal de Campina Grande, Brasil)
Denis Parra (Pontificia Universidad Católica de Chile, Chile)
Eliana Scheihing (Universidad Austral de Chile, Chile)
Christoph Trattner (Know-Center, TU-Graz, Austria)
Program Committee: Nazareno Andrade, University of Campina Grande, Brazil
Jussara Almeida, University of Minas Gerais, Brazil
Martin Atzmueller, University of Kassel, Germany
Alejandro Bellogin, Universidad Autónoma de Madrid, Spain
Shlomo Berkovsky, NICTA, AU
Anmol Bhasin, LinkedIn, USA
Danny Bickson, GraphLab, USA
Steven Bourke, UCD, Ireland
Robin Burke, de Paul, USA
Ed Chi, Google, USA
Alvin Chin, Microsoft, China
Vania Dimitrova, University of Leeds, UK
Lucas Drumond, University Hildesheim, Germany
Alexander Felfernig, TU-Graz, Austria
Zeno Gantner, Nokia, Germany
Ruth Garcia, Yahoo! Research Barcelona, Spain
Ido Guy, IBM Research, Israel
Eelco Herder, L3S, Germany
Andreas Hotho, University of Würzburg, Germany
Geert-Jan Houben, TU-Delft, Netherlands
Sharon Hsiao, Columbia University, USA
Bart Knijnenburg, University of California Irvine, USA
Milos Kravcik, RWTH Aachen, Germany
Mounia Lalmas, Yahoo! Research Barcelona, Spain
Neal Lathia, Cambridge University, UK
Elisabeth Lex, Graz University of Technology, Austria
Tobias Ley, Tallinn University, Estonia
Alan Said, TU-Delft, NL
Shaghayegh Sahebi, University of Pittsburgh, USA
Eduardo Veas, Know-Center, Austria
Katrien Verbert, Vrije Universiteit Brussel, Belgium
Tao Ye, Pandora, USA
Arkaitz Zubiaga, New York City University, USA