@article{sparseadditivemodelusingsymmetric,
  title = {Sparse Additive Model using Symmetric Nonnegative Definite Smoothers},
  author = {Yan Li},
  year = {2014},
  eprint = {1409.2552},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1409.2552v3},
}