The next speaker in this panel at the AANZCA 2025 conference is my QUT colleague Dan Angus, focussing especially on political advertising during the 2025 Australian federal election. This work is also supported by the ARC Centre of Excellence for Automated Decision-Making and Society. Computational advertising is ephemeral and targeted, individually personalised to the social media user; it is difficult to study these processes at scale. While platforms purport to provide some ad transparency libraries, these are limited, and can be enhanced through other approaches.

Some such approaches include data donations via browser plugins that capture the ads encountered by …

My QUT colleague Kateryna Kasianenko is the next speaker in this session at the AANZCA 2025 conference, focussing on how search engines respond to searches about conspiracy theories. Search engines are a common pathway towards conspiracist information; they have the potential to affect their users’ understanding of such information. What people see when they search for such content also depends directly on how the query itself is formulated, so query variations also need to be studied systematically. Our Australian Search Experience 2.0 project within the ARC Centre of Excellence for Automated Decision-Making and Society explores the impact of such query …

The final session on this first day of the AANZCA 2025 conference starts with my QUT colleague Shir Weinbrand, whose focus is on the emergence of AI Overviews in Google Search. These are a relatively new addition which fundamentally changes how search engines work: they provide an AI-generated synthesis of search results rather than pointing users to the search results themselves.

How are these changes being framed; how are different actors describing these changes – Google itself, technology journalists, and SEO marketers? This study engaged in computational concept mapping of the discourses around AI Overviews between May 2024 and May …

My own paper starts the final session at the the SEASON 2025 conference, presenting the Australian Search Experience team’s work towards assessing the effect of search query formulation on the diversity of search results, within the ARC Centre of Excellence for Automated Decision-Making and Society. Here are the slides: 

For the post-lunch session on this third day of the IAMCR 2025 conference in Singapore I’m in a session on mis- and disinformation infrastructures, where I’ll start by discussing our platform audit of how artificial intelligence chatbots respond to queries about well-known conspiracy theories. Here are the slides:

I presented in and chaired the Saturday morning session at the AoIR 2024 conference, which was on polarisation in news publishing and engagement, so no liveblogging this time. However, here are the slides from the three presentations that our various teams and I were involved in.

We started with my QUT DMRC colleague Laura Vodden, who discussed our plans for manual and automated content coding of news content for indicators of polarisation, and especially highlighted the surprising difficulties in getting access to quality and comprehensive news content data:

I …