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Showing papers from University of Stellenbosch Show all papers

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Coordinating Hundreds of RL Agents through Scalable Inference-Time Search

Daniel Rajaonarivonivelomanantsoa, Oussama Hidaoui, Refiloe Shabe, Noah De Nicola and 12 more

Sydney Poster Session 1, Tue, Dec 8, 10:00 AM–1:00 PM, Hall 1-4 · Published 2026

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lenient 1/5
medium 0/10
strict 0/5
45%Niche pick
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Factorized Self-Supervised Speech Tokenization

Benjamin Van Niekerk, Jean-Philippe Letendre, Nicol Visser, Hugo Seuté and 2 more

Paris Poster Session 5, Fri, Dec 11, 11:30 AM–1:30 PM, Paris Poster Hall · Published 2026

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medium 0/10
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57%Worth a look
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PRISM: Phenotype-Resolved Inference in Single-Cell Mixed Models via Latent Disease States and Contextualized Differential Expression

Andrea Rubbi, Lama Salem, Caleb Ellington, Pietro Lió and 3 more

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

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lenient 1/5
medium 0/10
strict 0/5
80%Must read
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Self-Supervised On-Policy Reinforcement Learning via Contrastive Proximal Policy Optimisation

CPPO is an on-policy contrastive RL method deriving advantages from contrastive Q-values via PPO without rewards or replay buffers, outperforming prior CRL baselines in 14 of 18 tasks and matching or exceeding hand-crafted-reward PPO in 12 of 18.

Asim Osman, Sasha Abramowitz, Mark Bergh, Ulrich Armel Mbou Sob and 12 more

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

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12/20 AI panelreviewers recommend it

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AI panel: 12 of 20 reviewers recommend it
lenient 4/5
medium 5/10
strict 3/5