The next speaker in this session at the AANZCA 2025 conference is my QUT colleague (and freshly minted DECRA Fellow) Katharina Esau, whose interest is especially in patterns of polarisation within the media coverage of climate change. She begins by noting that polarisation remains a poorly defined concept, which includes notions of issue-based, ideological, affective, perceived, value-based, and other forms of polarisation.

News media are usually perceived as polarised, too, but there is no robust way of assessing biases in and polarisation between different media outlets. This project, therefore, gathered data from some 26 Australian mainstream and fringe media outlets …

I’m also the first speaker in the next session at the AANZCA 2025 conference, presenting our work in progress on mapping public conversations about climate change within Australian Facebook pages between 2018 and 2024. Here is an earlier versions of the slides, from my AoIR 2025 preconference keynote:

I was the final speaker in this first paper session at the AANZCA 2025 conference, presenting a longitudinal study of ten years of the #auspol hashtag on what was then still Twitter. Our central interest here, in particular, was whether the extremely active #auspol userbase could be considered a genuine online community, or was merely a group of political junkies all shouting voluminously into the void.

Our slides are below:

I was next at the ZeMKI 20th anniversary conference in Bremen, presenting our practice mapping approach to the study of destructive polarisation in public communication. Here are the slides, and I’ve linked to the relevant articles here too:

The final session today at the AoIR 2025 conference starts with my excellent QUT colleague Tariq Choucair, who begins by introducing the challenge of assessing polarisation: there are many different definitions of polarisation, which require different measures of assessment. Most current methods fail to sufficiently distinguish between these types of polarisation.

Tariq is therefore proposing a new approach to assessing polarisation, which he has applied to the study of national electoral contests in Australia, Brazil, Denmark, and Peru. The focus here is to identify polarising rhetoric, including campaign attacks, and polarisation in broader public debates.

The method focusses especially on …

The final speaker in this session at the AoIR 2025 conference is my QUT colleague Dan Angus, presenting our work on AI chatbots’ responses to conspiracist ideation. Ai chatbots are now widely used by everyday users; this is leading to a range of problematic outcomes, as people are being drawn into deep emotional relationships with such chatbots, for instance. Chatbots are also increasingly manipulated to represent distinct ideological perspectives.

Here are our slides:

What happens, then, when chatbots are asked specifically about conspiracy theories? What guardrails and safety mechanisms, if any, are in place in leading …

The next speaker in this panel at the AoIR 2025 conference is my QUT colleague Laura Vodden, presenting her work on exploring LLM-assisted frame analysis of news coverage. This focusses here especially on Australian climate activism news coverage. The first challenge here, of course, is to understand framing, which usually includes a problem definition, suggested causes, proposed solutions, blame attribution, and and addressee for the solution. Such framing frequently occurs in news reporting.

Laura’s slides are here:

Frame analysis is a difficult and labour-intensive task, however; it requires critical engagement with complex material, and human coding is …