Ryan J. Y. Lim

collaborators

4 papers

cs.SI2026

How Well Do LLMs Simulate Survey Responses Following a Breast Cancer Screening Intervention?

Kenneth Koh, Ryan Jak Yang Lim, Alessandro Sparacio +5

Collecting survey data is laborious and limited by privacy constraints. Large language models (LLMs) have shown promise as predictive social simulations. It is unclear whether they…

math.PR2026

On additive averaging kernels for finite Markov chains

Ryan J. Y. Lim, Michael C. H. Choi

We study additive mixtures of Markov kernels of the form $A_{α} = α P + (1 - α) G$ , where $α \in [0, 1]$ , $P$ is a baseline sampler and $G$ is a Gibbs kernel induced by a partition of the s…

math.PR2026

Optimising two-block averaging kernels to speed up Markov chains

Ryan J. Y. Lim, Michael C. H. Choi

We study the problem of selecting optimal two-block partitions to accelerate the mixing of finite Markov chains under group-averaging transformations. The main objectives considere…

math.PR2025

Group-averaged Markov chains II: tuning of group action in finite state space

Michael C. H. Choi, Ryan J. Y. Lim, Youjia Wang

We study group-averaged Markov chains obtained by augmenting a $π$ -stationary kernel $P$ with orbit kernels induced by a group action. We analyse the Gibbs ( $G$ ), Metropolis--Hasti…