Tiezheng Ge Kaiming He Qifa Ke Jian Sun 0001 Optimized Product Quantization for Approximate Nearest Neighbor Search. 2946-2953 2013 CVPR https://doi.org/10.1109/CVPR.2013.379 https://doi.ieeecomputersociety.org/10.1109/CVPR.2013.379 conf/cvpr/2013 db/conf/cvpr/cvpr2013.html#GeHK013