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cs.LG2019
Fast-rate PAC-Bayes Generalization Bounds via Shifted Rademacher Processes
Jun Yang, Shengyang Sun, Daniel M. Roy
The developments of Rademacher complexity and PAC-Bayesian theory have been largely independent. One exception is the PAC-Bayes theorem of Kakade, Sridharan, and Tewari (2008), whi…
stat.CO2019
Optimal Scaling of Random-Walk Metropolis Algorithms on General Target Distributions
Jun Yang, Gareth O. Roberts, Jeffrey S. Rosenthal
One main limitation of the existing optimal scaling results for Metropolis--Hastings algorithms is that the assumptions on the target distribution are unrealistic. In this paper, w…