***** Apologies for multiple copies *****

You are cordially invited to submit a contribution to "Collective
Behaviors
and Networks", a one-day satellite event of the 2013 European Conference
on
Complex Systems (ECCS'13), to be held in Barcelona, September 19, 2013.

Goal of this workshop is to provide a discussion venue about advances in
the study of networks applied to the dynamics of social collective
behaviors. Particular attention will be devoted, but not limited to, the
following topics:

    - Group formation, evolution and group behavior analysis.
    - Modeling, tracking and forecasting dynamic groups in social media.
    - Community detection and dynamic community structure analysis.
    - Social simulation, cultural, opinion, and normative dynamics.
    - Empirical calibration and validation of agent-based social models.
    - Models of social capital, collective action, social movements.
    - Coevolution of network and behavior.

More information on COVEnANT2013 can be found here:
http://covenant2013.com
More information on ECCS'13 can be found here: http://eccs13.eu

Requirements

Participants are invited to submit their contributions via the EasyChair
system at the following link:
https://www.easychair.org/conferences/?conf=covenant2013

Contributions must be at most 2 pages long, and must provide the
following
information: title, list of authors with affiliations, and abstract.
Accepted format is PDF only. 

More information, about selection, registration, etc., can be found
here:
http://www.covenant2013.com/?page_id=25

Important Dates

    May 17, 2013
    Abstract submission deadline

    June 19, 2013
    Notification of acceptance

    September 19, 2013
    Satellite meeting

Data Challenge

    In order to encourage the development of predictive, data-driven
models
    of collective phenomena, a link prediction competition will be held
as
    part of the meeting. Monetary prizes will be awarded to the best
    contributions, which will be evaluated according to rigorous
scientific
    criteria by the program committee of the event. 1st prize: US$800,
2nd
    prize: US$200. 
    
    Further information (task, data set, dates) to be released soon.

Keynote Speakers

    Yong-Yeol Ahn, Indiana University, US
    J. Doyne Farmer, University of Oxford, UK
    Dirk Helbing, ETH Zürich, Switzerland
    Jure Leskovec, Stanford University, US
    Alessandro Vespignani, Northeastern University, US

Special Issue

    The best original contributions will be invited to submit an
extended
    version for inclusion in a special issue of EPJ Data Science
    (Springer).

Organizing Committee

    Giovanni Luca Ciampaglia, Indiana University, US
    Emilio Ferrara, Indiana University, US
    Alessandro Flammini, Indiana University, US
    Filippo Menczer, Indiana University, US

Program Committee

    Luca M. Aiello, Yahoo Research Barcelona, Spain
    Andrea Baronchelli, Northwestern University, US
    Pasquale De Meo, University of Messina, Italy
    Santo Fortunato, Aalto University, Finland
    Jacob Foster, University of Chicago, US
    Matteo Gagliolo, Université Libre de Bruxelles, Belgium
    Bruno Gonçalves, Aix-Marseille Université, France
    Andrea Lancichinetti, Northwestern University, US
    Michael Mäs, ETH Zürich, Switzerland
    Tamás Nepusz, Eötvös Loránd University, Hungary
    Orion Penner, IMT Lucca, Italy
    Nicola Perra, Northeastern University, US
    Filippo Radicchi, Universitat Rovira i Virgili, Spain
    José J. Ramasco, IFISC, Spain
    Carlos Roca, Universitat Rovira i Virgili, Spain
    Giancarlo Ruffo, University of Turin, Italy
    Daniel Villatoro, Barcelona Digital Technology Centre, Spain