@article{dimensionalityreductionforclickthrough,
  title = {Dimensionality reduction for click-through rate prediction: Dense versus sparse representation},
  author = {Bjarne Ørum Fruergaard and Toke Jansen Hansen and Lars Kai Hansen},
  year = {2013},
  eprint = {1311.6976},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1311.6976v2},
}