Introduction Nearest Neighbor Search(NNS)for Big Data Challenge in big data applications: o Curse of dimensionality ●Storage cost ●Query speed 日卡三4元，互Q0 Li (http://cs.nju.edu.cn/lwj) Learning to Hash CS.NJU 6 /210Introduction Nearest Neighbor Search (NNS) for Big Data Challenge in big data applications: Curse of dimensionality Storage cost Query speed Li (http://cs.nju.edu.cn/lwj) Learning to Hash CS, NJU 6 / 210