Adaptive Random Forests from Online Learning and Testing by Betting

Salim I. Amoukou, Saumitra Mishra, Manuela Veloso

Sydney Poster Session 2, Tue, Dec 8, 5:00 PM–8:00 PM, Hall 1-4 · Published 2026

Outlier-Robust Multi-Output Gaussian Processes

Joshua Rooijakkers, Leiv Rønneberg, Francois-Xavier Briol, Jeremias Knoblauch and 1 more

Sydney Poster Session 6, Thu, Dec 10, 5:00 PM–8:00 PM, Hall 1-4 · Published 2026

The Adversarial Gait: Detecting Visual Adversarial Attacks against Vision-Language Models via Self-Targeted Gradient Characterization

Mauricio Byrd Victorica, Ezzeldin Shereen, György Dán

Sydney Poster Session 3, Wed, Dec 9, 10:00 AM–1:00 PM, Hall 1-4 · Published 2026

Poisoning Attacks on LLMs Require a Near-constant Number of Poison Samples

Poisoning LLM pretraining requires only ~250 malicious documents regardless of dataset or model scale, revealing constant-cost backdoor injection risks for large models.

Alexandra Souly, Javier Rando, Ed Chapman, Xander Davies and 9 more

Sydney Poster Session 6, Thu, Dec 10, 5:00 PM–8:00 PM, Hall 1-4 · Published 2026 · ▲ 5 on Hugging Face

Conservative neural posterior estimation via distributionally robust training

DRO-NPE trains neural posterior estimators with distributionally robust worst-case losses to reduce overconfidence and improve calibration under limited simulation budgets.

William Laplante, Yuga Hikida, Charita Dellaporta, Francois-Xavier Briol and 1 more

Sydney Poster Session 4, Wed, Dec 9, 5:00 PM–8:00 PM, Hall 1-4 · Published 2026

Affine Tracing: A New Paradigm for Probabilistic Linear Solvers

Affine tracing unifies probabilistic linear solvers by showing Bayesian methods are non-stationary affine iterative methods that are calibrated, and automatically generates probabilistic multigrid solvers via symbolic computation graphs.

Disha Hegde, Marvin Pförtner, Jon Cockayne

Paris Poster Session 4, Thu, Dec 10, 5:30 PM–7:30 PM, Paris Poster Hall · Published 2026