Call for Papers:
The 3rd Trust, Reputation and User Modeling Workshop (TRUM'13)
http://trust.sce.ntu.edu.sg/trum13/

with the 21st Conference on User Modeling, Adaptation and Personalization
Rome, Italy, June 10-14, 2013
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Important Dates:

April 1, 2013: Deadline for workshop paper submissions
May 1, 2013: Notification to authors of accepted papers
May 15, 2012: Camera ready

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Objectives and Topics:

The Trust, Reputation and User Modeling (TRUM) workshop pursues the
following specific objectives:
-To bring researchers together from the communities of trust, reputation and
user modeling, and online communities where trust plays an important role;
-To provide a forum for cutting-age research possibly not yet well evaluated;
-To initiate and facilitate discussions on the new trends in trust, reputation
and user modeling, and to move the trends forward.

There are three ways in which the area of user modeling and the area
of trust and reputation modeling overlap.

First, decentralized and ubiquitous user modeling has sought inspiration from
research in multi-agent systems over the last 10 years, resulting in a series of
workshops at the UM conference in 2005, 2007 and UMAP 2009. The current trend
towards software apps using the cloud to store and process information that can
be downloaded on social networks and mobile devices platforms brings new importance
to the area of decentralized user modeling. Frameworks for dynamic and purpose
based sharing of user mode fragments among apps needs to take into account the
trust among these apps. The trust of one agent in another can be viewed as a simple
user/agent model. Researchers in the area of trust and reputation mechanisms have
studied for many years techniques allowing autonomous agents and peers to share,
aggregate and make decisions based on these simple user models. User modeling
researchers can gain useful insights from this area.

Second, the area of trust and reputation modeling has experienced rapid growth
in the past 7 years. Recently, two important trends have been emerging in this area.
One is the computational modeling of agents' cognition, such as subjectivity and
disposition, to achieve more accurate trust and reputation modeling. Another trend is
modeling of agents' trust using a stereotype approach to deal with the problem of
lack of experience. Both of these trends are closely related to studies in user modeling. The evidential success of these new trends inspires and encourages researchers in the trust community to make use of the rich literature in user modeling to develop more comprehensive trust and reputation modeling approaches.

A third important way in which research in user modeling overlaps with trust is the
user's trust in the adaptive / personalized application. In effect it is a symmetrical
area to that of user modeling: while user modeling suggests that the system models the
user, here the user models the system. It relates to issues of user's understanding of
the application, and of the privacy and integrity of the user model data, both of which
are actively studied in the user modeling community. Facilitating the user's understanding and trust in the system's functioning and the way it manages the user's data is very important, since it determines the user's acceptance of the application's recommendations or persuasion, the user's satisfaction with the application's functionality, and ultimately, its success.

Finally, the previous TRUM workshops have focused on users trust in systems. We now look at trust in a more holistic way as shown in the figure above, on the right (trust triangle) and manifested in online social networks: (a) trust between members of the network, (b) trust between a member and the provided online service, and (c) the trust between a member and the service provider. This focus brings yet another intersection between trust research and user modeling, with respect to recommendation systems. Whereas recommendation systems typically rely on users?profiles or preferences, new types of recommendation algorithms are being designed based on trust behavior, thus further enhancing personalization.




Topics to be covered in this Workshop include but are not limited to:

Trust and Reputation Modeling
- Subjectivity and Disposition in Trust and Reputation Modeling
- Cognitive and Computational Trust
- Stereotype-based Trust Modeling
- Trust in Social Networks
- Trust-based Recommender Systems
- Trust and Reputation Modeling in Mobile Networks
- Trust in Organizations, Institutions and Systems
- Models and mechanisms for privacy

User Modeling
- Decentralized User Modeling approaches
- Purpose-based user modeling
- Sharing of User model fragments
- User modeling in mobile computing, e.g. smart phone apps, vehicles, cameras
- User Modeling in ambient and ubiquitous computing
- User modeling in Social Networks
- Modeling evolving trust relationships among users in social networks
- Modeling evolving trust or distrust of users in applications (privacy, integrity of user data)
- Modeling trust of users in recommenders and persuasive applications.

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Committee (alphabetical order):

Co-Chairs

Surya Nepal, CSIRO ICT Centre, Australia
Cecile Paris, CSIRO ICT Centre, Australia
Julita Vassileva, University of Saskatchewan, Canada
Jie Zhang, Nanyang Technological University, Singapore

PCs

Elisabeth Andre, University of Augsburg, Germany
Lora Aroyo, Free University of Amsterdam, The Netherlands
Ebrahim Bagheri, Athabasca University, Canada
Susan Bull, University of Birmingham, UK
Robin Cohen, University of Waterloo, Canada
Nathalie Colineau, CSIRO ICT Centre, Australia
Ralph Deters, University of Saskatchewan, Canada
Michael Fleming, University of New Brunswick, Canada
Ali Ghorbani, University of New Brunswick, Canada
Xin Liu, EPFL
Zaki Malik, Wayne State University, USA
Bamshad Mobasher, De paul University
Steve Marsh, Communications Research Centre, Canada
Judith Mashoff, University of Aberdeen, UK
Pearl Pu, EPFL
Murat Sensoy, University of Aberdeen, UK
Wanita Sherchan, IBM Research, Australia
Aaditeshwar Seth, Indian Institute of Technology Delhi, India
Munindar P. Singh, North Carolina State University, USA
Thomas Tran, University of Ottawa, Canada
Yang Wang, Carnegie Mellon University, US
Neil Yorke-Smith, American University of Beirut, Lebanon
Adam Wierzbicki, Polish-Japanese Institute of Information Technology, Poland


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Submission Guidelines:

All submissions should be in LNCS format, no longer than 12 pages for full papers,
6 pages for short papers, and 3 pages for poster papers. Please
submit your paper on the TRUM Workshop Easychair site.

https://www.easychair.org/conferences/?conf=trum2013

All papers must be submitted in either Adobe Portable Document Format (PDF), or Microsoft Word Format (doc). All papers must be original and must not have been published or under review elsewhere. Submissions will be reviewed for relevance,
originality, significance, validity and clarity. All articles selected for
publication will be reviewed by at least two reviewers with expertise in the area.

The 1st Trust, Reputation and User Modeling workshop (TRUM'11) was held with
the International Conference on User Modeling Adaptation and Personalization
(UMAP 2011) at Girona, Spain on July 11, 2011. The accepted papers were invited
to submit their extended versions to the International Journal of Trust Management
in Computing and Communications (IJTMCC).

Papers accepted by TRUM'11 were published as a book with Springer "Advances in User Modeling".

For TRUM'12, there is a journal special issue on selected 4-6 papers plus
an overview/survey paper by the organizers and some invited PC members, in
Computational Intelligence.

For TRUM'13, we also plan to edit a journal special issue in a reputable journal.