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cs.LG2026
Refined Detection for Gumbel Watermarking
Tor Lattimore
We propose a simple detection mechanism for the Gumbel watermarking scheme proposed by Aaronson (2022). The new mechanism is proven to be near-optimal in a problem-dependent sense…
cs.LG2026
A Lyapunov Analysis of Softmax Policy Gradient for Stochastic Bandits
Tor Lattimore
We adapt the analysis of policy gradient for continuous time -armed stochastic bandits by Lattimore (2026) to the standard discrete time setup. As in continuous time, we prove t…