Tore Opsahl

Thesis: Appendix A – Presented and Published Papers

During my PhD, a number of the projects I have worked on have been presented at conferences. The first presentation was on the structure of the online social network used in most of the chapters of this thesis. This was at the Social Network Analysis Forum 2005 (Centre for Criminology, Oxford University, Oxford, UK). Improved versions of this project have subsequently been presented at the 26th International Sunbelt Social Network Conference (Vancouver, Canada), the European Conference on Complex Systems 2006 (Said Business School, Oxford University, Oxford, UK), and the UK Social Network Conference 2007 (Queen Mary College, University of London, London, UK). This project has now resulted in a publication (see Panzarasa et al., 2009).

Second, the generalisation of the clustering coefficient presented in Chapter 2 was first presented at the Applications of Social Network Analysis 2006 (Institute of Mass Communication and Media Research, University of Zurich, Zurich, Switzerland). By taking into consideration the feedback received, a new version of the paper was presented at the 27th International Sunbelt Social Network Conference (Corfu, Greece) and the International Workshop and Conference on Network Science 2008 (NetSci’08; Norwich BioScience Institutes, Norwich, UK). This project has now resulted in a publication (see Opsahl and Panzarasa, 2009).

Third, the weighted rich-club effect presented in Chapter 3 has recently been accepted for publication by Physical Review Letters, one of the most influential journals in physics. This project was not presented at any conferences before publication (see Opsahl et al. (2008)).

Fourth, a project about the processes that govern online communication was presented at both the 27th and 28th International Sunbelt Social Network Conference (Corfu, Greece; Tampa, FL, USA) as well as the UK Social Network Conference 2008 (University of Greenwich, London, UK) during which feedback was received that enabled us to change it to the present form (Chapter 4). A manuscript is currently in preparation.

Fifth, in addition to the projects mentioned in this thesis, I have also work on a project that examines the effects of a scientific collaboration network structure on scientific performance. A preliminary study of this network was presented at the 2nd Social Network Forum (Leeds University Business School, Leeds, UK) in 2006. In this presentation, performance was measured by using an institutional performance score. Since then, the project has been extended and split into two papers. The first paper analyses the global structure of the network and was presented at the American Sociological Association’s 102nd Annual Meeting in New York (2007). The second paper focusing on performance was presented at the 2007 Annual Meeting of the Academy of Management in Philadelphia (2007) and the UK Social Network Conference 2007 (Queen Mary College, University of London, London, UK). Subsequently, the second paper has been updated by looking at the weighted citation score of authors instead of an institutional performance measure. The improved version has been presented at 28th International Sunbelt Social Network Conference (Tampa, FL, USA), Cass Business School’s Workshop on Scientific and Managerial Knowledge 2008 (City University, London, UK), the International Workshop and Conference on Network Science 2008 (NetSci’08; Norwich BioScience Institutes, Norwich, UK), and the UK Social Network Conference 2008 (University of Greenwich, London, UK).

Sixth, I have also been part of a project related to inventor networks in emerging countries, and a qualitative project related to verifying whether online ties are a product of cognitive similarity. These two projects were presented at the 25th Danish Research Unit for Industrial Dynamics (DRUID) Conference (Copenhagen Business School, Copenhagen, Denmark) and the UK Social Network Conference 2008 (University of Greenwich, London, UK), respectively.