@inproceedings{optimizedproductquantizationfor,
  title = {Optimized Product Quantization for Approximate Nearest Neighbor Search},
  author = {Tiezheng Ge and Kaiming He and Qifa Ke and Jian Sun},
  year = {2013},
  booktitle = {CVPR 2013 6},
  url = {http://openaccess.thecvf.com/content_cvpr_2013/html/Ge_Optimized_Product_Quantization_2013_CVPR_paper.html},
}