The final paper in this Digital Methods panel is by Axel Maireder and Stefan Schlögl, whose interest is in the #aufschrei discussion about sexism in German politics. How did this emerge from a small-scale conversation on Twitter to a major trending hashtag, and subsequently to a cross-media event, over the course of a few hours? What happened here was the growth of a communicative network in the form of a partial public or issue public related to the topic on Twitter, interleaved with other publics as enabled by the conventional mainstream media.

New forms of discussion fora and spaces, especially also including social media, enable new and lasting connections between themes and individuals. These connections are increasingly manifested in the data structures which are available through social media APIs, too, and structure the flow of communication. URLs shared in tweets and other social media updates further document the connection of such communication with other, external media, while hashtags enable the development of ad hoc publics independent of existing follower networks.

The next panel at the Digital Methods conference begins with a panel by Theresa Sauter and me, on the viral distribution of links to the video of Julia Gillard's "misogyny" speech in 2012 as it was posted in full on the ABC News site. Unfortunately the audio recording didn't work out, so below are the slides only - do make sure you click on the links to see the video and the animations of the emerging retweet network.

At the end of an extended trip to a range of conferences and symposia I've made my way to Vienna, where I'm attending the DGPuK Digital Methods conference at the University of Vienna. The conference is in German, but I'll try to blog the presentations in English nonetheless - wish me luck... We begin with keynote by Jürgen Pfeffer, addressing - not surprisingly - the question of 'big data' in communications research.

Jürgen begins by asking what's different about 'big data' research. In our field, we're using 'big data' on communication and interaction to work towards a real-time analysis of large-scale, dynamic sociocultural systems, necessarily especially through computational approaches - this draws on the data available from major social networks and other participative sites, but it aims not to research "the Internet", but society by examining communication patterns on the Internet (and elsewhere).

The final speaker in this "Compromised Data" session is Anatoliy Gruzd, whose interest is in the automated discovery and visualisation of communication networks from social media data. (He's also just launched a new journal in this field, Big Data and Society.) How can such networks be discovered and visualised, and how can we evaluate the sense of community which may exist in them?

Social network analysis enables us to investigate the connections between users in social networks. It reduces large quantities of messages to a smaller number of nodes exchanging communication; it can track longitudinal developments over time; it can show the social dynamics of interaction around specific topics and events; and it can differentiate between different types of network formation in social interaction.

This AoIR 2013 also contains a paper by Theresa Sauter and me, on the tone of debate in the #auspol hashtag for the discussion of Australian politics. Here are the slides - audio to follow now online as well...

Exploring Emotions on #auspol: Polarity and Public Performance in the Twitter Debate on Australian Politics from Axel Bruns

The final paper in our panel at AoIR 2013 is by Anders Larsson and Bente Kalsnes, looking at the Norwegian election on 9 Sep. Their work examines the use of Twitter by citizens, politicians, and journalists. One starting point for this were the #valg2013 and #valg13 hashtags, to identify what users are being mentioned in these hashtags - which showed that then-PM Jens Stoltenberg was @mentioned frequently but did not often reply, while the Greens party both sent and received many hashtagged tweets. Amongst the retweeters, one-off messages which receive substantial retweets can become prominent, but more frequently retweeted users tend to be celebrities (comedians, journalists, etc.)

A second approach was to examine the Twitter uses by some of the key party leaders. As it turns out, during the month before the election there was a strong focus on @replying, especially from the leaders of the smaller parties. Their communication is mainly with their own supporters - there are very few users who received @replies from two or more leading politicians (and these are largely journalists and other media figures, not everyday citizens).

The next paper in our AoIR 2013 panel is by Julia Neubarth and Christian Nuernbergk, covering the German federal election two days after the Australian one. The Net is playing an increasingly important role in political communication in Germany, but there is still very little active participation by citizens, and active participants are mainly male, younger, and left-wing. Politicians are getting more active - some 60% of federal parliamentarians are on Twitter, although Chancellor Merkel still isn't.

German politicians on Twitter will find a mixed audience - use in the country is growing, but still limited; however, active participants are especially interesting as they represent journalists and other media personnel as well as especially politically interested users.

The next paper in our AoIR 2013 panel is by Theresa Sauter, Tim Highfield and me. Here are the slides - audio to come later now with audio...

#ausvotes Mark Two: Twitter in the 2013 Australian Federal Election from Axel Bruns