Moved to belak.net/blog

I moved this blog to a dedicated hosting: http://belak.net/blog.

Group Betweenness Centrality in JUNG (Java)

As a part of my work on cross-community analysis, I needed to compute centrality of whole clusters. Particularly, I was interested in their betweenness centrality as defined by Borgatti & Everett. The computation of this score by classic algorithm by Brandes can be quite expensive in case of many groups in the network, but Puzis [...]

Setting-up LaTeX Environment on Mac OS X

I recently switched from Linux to Mac OS X and one of the first things I needed to set up was LaTeX environment. This post describes how to set-up fully working LaTeX environment on Mac OS (i.e. editor, PDF viewer, and LaTeX distribution). It is not a complete howto, but rather just a description of individual pieces and why I chose them and not something else.

Winter School of Network Theory and Applications

At the very beginning of this year, from 5th to 8th January, I had attended the Winter School of Network Theory and Applications at the University of Warwick, UK. It was organized by complexity research centres from universities of Oxford and Warwick and in contrast to other workshops on networks, this school was less focused on social networks in particular, and was more concerned with networks in general, their statistics, modelling and dynamics.

Complexity Crumblenaut — 2

Overview of the most interesting papers, links, talks, events, etc. in the network science, SNA, and complex systems research, which I have come across last two weeks.

Complexity Crumblenaut — 1

Overview of the most interesting papers, links, talks, events, etc. in the network science, SNA, and complex systems research, which I have come across this week.

WebScience: The Next Big Thing or a Buzzword?

Last week of September, couple of interesting events related to Web Science were organized by the Royal Society in UK. This post is just a couple of bits and pieces I managed to remember during these intensive, mind-stimulating, and enriching days.

Applications of Social Network Analysis: ASNA 2010

By some strange coincidence, I managed to visit Switzerland again this year – even two times in the same month!;-) I visited Zurich between 15.-17. September, where ASNA 2010 conference took place. This year’s topic was dynamics of social network, which pretty much resonates with our current work with Conor Hayes and Marcel Karnstedt, so I presented a full paper about it there.

Second International Conference on eParticipation: ePart 2010

Between 29. August and 2. September 2010, the second ePart conference held in beautiful city of Lausanne in Switzerland. eParticipation is a discipline studying engagement and participation of citizens in public policy using modern communication technologies, particularly Internet. The conference was co-located with its more famous and established conference on electronic government – eGov – from which it split off. I presented there a paper based on my Master’s thesis I elaborated on ontology driven self-organization of politically engaged social groups.

Knitting the Dublin Clique

Last two weeks of August I spent in Dublin visiting the UCD Clique group. Even though modern technologies and Internet in particular allow us to communicate freely and efficiently, the face-to-face encountering is still irreplaceable, what I realized right after the first brainstorm session on what should I work on during my two-week visit. It turned out, that there is a significant intersection between what I would like to work on in the close future and what the guys in Dublin plan to research.