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SIENA research projects



  • The SIENA program is itself the product of an ongoing research effort. The research team is composed of Tom Snijders, Christian Steglich, Viviana Amati, Johan Koskinen, Nynke Niezink, Robert Krause, Mark Huisman, with earlier contributions made by Krists Boitmanis, Ruth Ripley, Josh Lospinoso, Felix Schönenberger, Paulina Preciado, Michael Schweinberger, Marijtje van Duijn, Charlotte Greenan, and Mark Ortmann.

    The earlier computer implementation of version up to Siena 3 was part of the StOCNET project, an activity of Christian Steglich, Tom Snijders, and SciencePlus (Bert Straatman), with important earlier contributions from Evelien Zeggelink, Peter Boer, Mark Huisman, and others.


  • During 2012-2015, an international research program Social Influence in Dynamic Networks was active, in cooperation between researchers of the universities of Ljubljana, Oxford, Turku, Lugano, Groningen, Ørebro, Barcelona (Autonomous University), Konstanz, and Paris-Dauphine. This was a European Collaborative Research Project (ECRP 10-044) in the EUROCORES scheme of the European Science Foundation (ESF). This research program extends and applies the methodology used in SIENA. Further information is at the website of the research program.


    As part of the project Adolescent Peer Social Network Dynamics and Problem Behavior, funded by NIH (Grant Number 1R01HD052887-01A2), Principal Investigator John M. Light (Oregon Research Institute), SIENA was entirely reprogrammed. This was done by Ruth Ripley and Krists Boitmanis, collaborating with Tom Snijders and Johan Koskinen. The new version is SIENA 4, also called RSiena. The first official version was released late June, 2009, and somewhere in 2011 practically all longitudinal functionalities in SIENA 3 had been implemented in RSiena.


    During 2006-2010 an international research program Dynamics of Actors and Networks across Levels: Individuals, Groups, Organizations, and Social Settings was active, in cooperation between researchers of the universities of Groningen and Oxford, Konstanz, Paris-Dauphine, Barcelona (Autonomous University) and Sevilla, Orebro,Lugano (University of Italian Switzerland), and Cardiff. This is a European Collaborative Research Project in the EUROCORES scheme of the ESF. This research program extends and applies the methodology used in SIENA.


    During 2002-2008 a research program The dynamics of networks and behavior was active, in cooperation between researchers of the universities of Groningen and Utrecht (graduate school ICS) and Maastricht (dept. of Health Promotion and Health Education). In this research program, the methodology used in SIENA is being extended to methods for analyzing the joint dynamics of networks and of individual behavior, and applied to several sociological research questions. The website of the research program can be found by clicking here.


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