Introduction Problem Definition Reduce Dimensionality and Storage Cost Gist vector Binary reduction 1 million images 2 GB 16 MB 口卡+得二4元互)Q0 Li (http://www.cs.sjtu.edu.cn/-livujun Learning to Hash CSE.SJTU 6/49Introduction Problem Definition Reduce Dimensionality and Storage Cost Li (http://www.cs.sjtu.edu.cn/~liwujun) Learning to Hash CSE, SJTU 6 / 49