Introduction Nearest Neighbor Search (Retrieval) Given a query point g,return the points closest(similar)to g in the database (e.g.,image database). oUnderlying many machine learning,data mining,information retrieval problems. 口卡+得，二4元互)Q0 Li (http://cs.nju.edu.cn/lwj) Learning to Hash CS.NJU 4 /210Introduction Nearest Neighbor Search (Retrieval) Given a query point q, return the points closest (similar) to q in the database (e.g., image database). Underlying many machine learning, data mining, information retrieval problems. Li (http://cs.nju.edu.cn/lwj) Learning to Hash CS, NJU 4 / 210