Brisbane.
The third speaker in this session at ANZCA 2009 is Tim Highfield, who works on a comparative study of political blogs in Australia and France (and is one of my PhD students). He focusses here on the Australian side and its reaction to the inauguration of Barack Obama. The project tracks some 245 blogs and news Websites in Australia, and extracts from these each post (and its links) as they become available online. These data are then quantitatively analysed for keyword and link patterns.

The Obama inauguration was a major political event, of course, and provided a useful case study for this work; other such samples could be the swine flu epidemic or the 'utegate' controversy storm in a teacup. Interestingly, only about 50 blogs in the population published a post or more during the two weeks surrounding the inauguration (possibly due to the fact that January is a major holiday month in Australia). There was no major spike on inauguration day itself, either.

Brisbane.
I'm the first speaker of the next session of ANZCA 2009, presenting some baseline data from our first test run of our blog mapping methodology during the Australian federal election in November 2007. The Powerpoint is below (with audio to follow soonish also online now), and the full paper is online as well. Links to more information are in the final slide of the Powerpoint.

Technorati : 2007, ANZCA 2009, Australia, blogs, election, mapping, politics
Del.icio.us : 2007, ANZCA 2009, Australia, blogs, election, mapping, politics

Athens.
After the rather unruly cultural panel, WebSci '09 has now moved on to the next keynote, by Noshir Contractor. His theme is the application of Web science to social networks, and he begins by noting some of the experimental mobile tools now available for social networking. The Web in general enables us to communicate and collaborate with any one at any time, but what is necessary are tools that enable us to identify who it is that we should be or want to be collaborating with. This is where social network analysis and Web science comes in.

Athens.
The second and last day of WebSci '09 starts with a session on social networking, although the first paper in this session, by Yorgos Amanatidis, has the somewhat technical title "Kernels for Complex Networks" - we'll see what that's all about... Visual network graph models, apparently, for graphs which represent relational data in an abstract way. Such graophs can be used in the analysis, simulation, and prediction of network topologies, focussing especially on aspects like scaling, clustering, and node centrality.

What can be observed in real networks is the degree distribution: as the Web grows, the average degree is constant, but there is huge variance and no concentration around the average; indeed, we see the small world phenomenon which produces networks with small diameter and strong clustering tendencies (the friend of my friend is likely also to be my friend). Kleinberg, for example, modelled the fact that in small world networks there are not only short paths between nodes, but that these nodes can find such paths effectively using local information.

Athens.
Finally for this first day at WebSci '09, we move to the poster session, which includes our poster on the Australian political blogosphere mapping project; the A1 poster itself is available here, and there's also a brief article to provide further background detail. From the post slideshow that's playing at the moment, there's quite a bit of really interesting stuff here - and all of the posters are also available online.

Athens.
The first full day here at WebSci '09 begins with a keynote by NIgel Shadbolt, founding director of the Web Science Research Initiative (WSRI). As we're in Athens, he begins by taking the historical approach: he notes that another way to describe Web science is as 'philosophical engineering', which links back ultimately to the founding fathers of philosophy, including Socrates, Plato, and Aristotle. Their pure philosophical speculation, indeed, formed the basis not only for modern philosophy, but also for modern science.