Product Quantization (PQ) search and its derivatives are popular and successful methods for large-scale approximated nearest neighbor search. In this paper, we review the fundamental algorithm of this class of algorithms and provide executable sample codes. We then provide a comprehensive survey of the recent PQ-based methods.
@article{ite_matsui_2018, title={A Survey of Product Quantization}, author={Yusuke Matsui and Yusuke Uchida and Herv\'{e} J\'{e}gou and Shin'ichi Satoh}, journal={ITE Transactions on Media Technology and Applications}, volume={6}, number={1}, pages={2--10}, year={2018}, }