PAC-Bayesian Estimation and Prediction in Sparse Additive Models
  The present paper is about estimation and prediction in high-dimensional additive models under a sparsity assumption ($p\gg n$ paradigm). A PAC-Bayesian strategy is investigated, delivering oracle inequalities in probability. The implementation is performed through recent outcomes in high-dimensional MCMC algorithms, and the performance of our method is assessed on simulated data. 
Benjamin Guedj and Pierre Alquier
stat.ME math.ST stat.TH