@article{shrinkageoptimizeddirectedinformation,
  title = {Shrinkage Optimized Directed Information using Pictorial Structures for Action Recognition},
  author = {Xu Chen and Alfred Hero and Silvio Savarese},
  year = {2014},
  eprint = {1404.3312},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1404.3312v1},
}