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Reposted by Matías Piqueras

Luca Rossi @lrossi.bsky.social · 19/09/2025

#computationalsocialscience Our work on using VLLMs for semantic visual clustering is out on SSCR: journals.sagepub.com/doi/10.1177/... There is a lot happening in the space of computational analysis of visual content as we acknowledge more and more the visual nature of contemporary communication.

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Reposted by Matías Piqueras

Sol Messing @solmg.bsky.social · 11/09/2025

7/ Kernel Approximation Ideal Point Poisson Factorization - scalable Bayesian ideological estimation from billions of observations, applied to 134 million TikTok comments to map ideology on the platform. @matiaspiqueras.bsky.social

matiaspiqueras.bsky.social

Matías Piqueras (@matiaspiqueras.bsky.social)

PhD student in Computer Science at Uppsala University working on developing computer vision models and methods relevant to the study of politics and society.

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Reposted by Matías Piqueras

Department of Government, Uppsala University @uu-polisci.bsky.social · 03/06/2025

Sophie Mainz has been awarded the John Sullivan Award for the best paper by a graduate student presented at any of the panels organized by the Elections, Public Opinion, and Voting Behavior section at last year’s APSA conference. Congratulations to @sophiemainz.bsky.social !

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Matías Piqueras @matiaspiqueras.bsky.social · 20/04/2025

Sharing our new preprint "An Image is Worth K Topics: A Visual Structural Topic Model with Image Embeddings" with @mansmag.bsky.social @matmagnani.bsky.social Alexandra Segerberg and Nataša Sladoje. Available on ArXiv: arxiv.org/abs/2504.10004

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