Optimal model selection for density estimation of stationary data under various mixing conditions

We propose a block-resampling penalization method for marginal density estimation with nonnecessary independent observations. When the data are $β$ or $τ$-mixing, the selected estimator satisfies oracle inequalities with leading constant asymptotically equal to 1. We also prove in this setting the slope heuristic, which is a data-driven method to optimize the leading constant in the penalty.

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