The 20th ACM Symposium on Applied Computing
March 13 - 17, 2005, Santa Fe, New Mexico, USA

Track: Trust, Recommendations, Evidence and other Collaboration Know-how

SAC 2005:

For the past nineteen years, the ACM Symposium on Applied Computing has
been a primary gathering forum for applied computer scientists, computer
engineers, software engineers, and application developers from around
the world. 
SAC 2005 is sponsored by the ACM Special Interest Group on Applied
Computing, and is hosted by New Mexico Institute of Mining and
Technology, Socorro, NM, USA. Its proceedings are published by ACM in
both printed form and CD-ROM; they are also available on the Web through
the ACM Digital Library. More information about SIGAPP and past editions
of SAC can be found at and

Aims and scope of the TRECK track:

Computational models of trust and mechanisms based on the human notion
of trust have been gaining momentum over the last couple of years. One
reason for this is that traditional security mechanisms are challenged
by open, large scale and decentralised environments. The use of an
explicit trust management component goes beyond security though. Trust
has been used in reputation systems, collaborative filtering, dynamic
coalitions and virtual organizations. For example, adjunct trust metrics
in recommender systems have solved some of the shortcomings of standard
distributed recommender systems.
The goal of the SAC 2005 TRECK track is to explore the set of
applications that either benefit from the use of early trust-based
mechanisms or could be enhanced by the integration of an advanced trust

The topics of interest include, but are not limited to:

Trust/risk-based security frameworks
Applications of trust management components
Improvement of recommender systems with adjunct trust/reputation 
Trust-enhanced collaborative applications 
Tangible guarantees given by formal models of trust and risk
Applications of formal models of trust and risk
Assessment and threat analysis of trust metrics
Pervasive computational trust and use of context-aware features
Trade-off between privacy and trust
Automated collaboration and trust negotiation 
Integration of soft computing techniques in trust engines
Evidence gathering and management
Real world applications, running prototypes and advanced simulations
Applicability in large scale, open and decentralized environments
Representation, management and recognition of identities
Trust and reputation in virtual organizations
Legal and economic aspects related to the use of trust-based systems
User-studies of computational trust applications

Submission guidelines are posted on the TRECK 2005 website
(, which always contains the latest

Authors are invited to submit full papers about original and unpublished
research. We would like to encourage the submission of industrial
experience reports and reports of innovative computing applications.
Parallel submission to other conferences, other tracks of SAC 2005 or
any other publications is forbidden. Papers submitted should not have
been previously published and should not be subsequently published in
the same form elsewhere. 
Submissions should be properly anonymized to facilitate blind reviewing:
papers being submitted should not list the authors, affiliations or
addresses on the first page and authors are also encouraged to take care
throughout the entire document to minimise references that may reveal
the identity of the authors or institution. The body of each paper
should not exceed 4,000 words. Papers failing to comply with length
limitations risk immediate rejection. Authors of accepted papers must be
prepared to sign a copyright statement and must guarantee that their
paper will be presented at the conference.

At least three reviewers will be assigned to each submission to the
TRECK track. Accepted papers are published by ACM in both printed form
and CD-ROM; they are also available on the Web through the ACM Digital
Library. Once accepted, papers must fit within five (5) two column pages
(please check the author kit on the main SAC website: the format is
usually the ACM one at, with the option (at
additional expense) to add three (3) more pages. A second set of
selected papers, which did not get accepted as full papers, will be
accepted as posters and will be published as extended 2-page abstracts
in the symposium proceedings.

Paper submissions should be sent (as an attached PDF file) to:
The body of the email should include the title of the paper, the
author(s) name(s) and affiliation(s), and the address (including e-mail,
telephone, and fax) to which correspondence should be sent. 
Submissions will be accepted until 23.59 PM GMT, 3 September, 2004. No
more papers will be accepted after that time.

For more information please visit: or
send an email to


Sept.  3, 2004:	Paper submissions
Oct. 15, 2004:	Author notification
Nov.  5, 2004:	Camera-Ready Copy
March 13-17, 2005: SAC in Santa Fe

Conference Venue:

Nestled at 7000 feet (2000 m) in the foothills of Rocky Mountains, Santa
Fe, New Mexico, the "City Different", is the oldest capital city in the
United States, the city that has a long history and rich cultural
heritage. Originally a townlet populated by Pueblo Indians, it became a
capital of Nueva Espana (New Spain) in 1607, then a capital of the
Mexican state of Nuevo Mexico (New Mexico); since the 1840's, it is part
of the USA. 

Santa Fe is famous for its culture, art, and traditions. It is home to
US's third largest art market, to the Santa Fe Opera, variety of
cuisines, hundreds of quaint shops, and unlimited outdoor activities.
For more information about Santa Fe see the city website at

Track Program Chairs:

Christian Damsgaard Jensen
Technical University of Denmark
Jean-Marc Seigneur
Trinity College Dublin, Ireland

Track Program Committee:

Ciara'n Bryce, University of Geneva, Switzerland
Laurent Bussard, Eurecom Institute, France
Marco Carbone, University of Aarhus, Denmark
Bruno Crispo, Vrije Universiteit Amsterdam, The Netherlands
Robert Demolombe, Onera, France
Theo Dimitrakos, CCLRC, United Kingdom
Nathan Dimmock, University of Cambridge, United Kingdom
Luca Ferrari, University of Modena and Reggio Emilia, Italy
Jennifer Golbeck, University of Maryland, USA
Angelos D. Keromytis, Columbia University, USA
Sozo Inoue, Kyushu University, Japan
Vale'rie Issarny, INRIA, France
Christian Damsgaard Jensen, Technical University of Denmark
Audun Jo/sang, DSTC, Australia
Frederik Leemans, Philips Remote Control Systems, Belgium
Stephane Lo Presti, University of Southampton, United Kingdom
Michael R. Lyu, Chinese University of Hong-Kong, China
Stephen Marsh, National Research Council, Canada
Anthony Meehan, Open University, United Kingdom 
Tobias Mahler, University of Oslo, Norway
Paolo Massa, University of Trento, Italy
Hugo Miranda, University of Lisbon, Portugal
Seamus Moloney, Nokia, Finland
Philip Robinson, Teco, University of Karlsruhe, Germany
Jean-Marc Seigneur, Trinity College Dublin, Ireland
Laurence Vignollet, Universite' de Savoie, France
Waleed Wagealla, University of Strathclyde, United Kingdom
Marianne Winslett, University of Illinois at Urbana-Champaign, USA
Konrad Wrona, Ericsson, Ireland
Cai-Nicolas Ziegler, University of Freiburg, Germany