collaborators

5 papers

cs.LG2026

Inverting the Bellman Equation: From -Values to World Models

Alistair Letcher, Mattie Fellows, Alexander D. Goldie +3

Model-based and model-free reinforcement learning are traditionally viewed as separate paradigms: instead of learning a model of the transition kernel , model-free agents typica…

cs.LG2026

Affordances Enable Partial World Modeling with LLMs

Khimya Khetarpal, Gheorghe Comanici, Jonathan Richens +5

Full models of the world require complex knowledge of immense detail. While pre-trained large models have been hypothesized to contain similar knowledge due to extensive pre-traini…

quant-ph2025

Quantum oracles give an advantage for identifying classical counterfactuals

Ciarán M. Gilligan-Lee, Yìlè Yīng, Jonathan Richens +1

We show that quantum oracles provide an advantage over classical oracles for answering classical counterfactual questions in causal models, or equivalently, for identifying unknown…

cs.AI2025

Plasticity as the Mirror of Empowerment

David Abel, Michael Bowling, André Barreto +13

Agents are minimally entities that are influenced by their past observations and act to influence future observations. This latter capacity is captured by empowerment, which has se…

cs.AI2025

Agency Is Frame-Dependent

David Abel, André Barreto, Michael Bowling +13

Agency is a system's capacity to steer outcomes toward a goal, and is a central topic of study across biology, philosophy, cognitive science, and artificial intelligence. Determini…