参考资料：
Learning Globally-Consistent Local Distance Functions for Shape-Based Image Retrieval and Classification，Andrea Frome etc.
昨晚总结完就睡着了，今天不知道为什么手欠给拉到废纸篓里面还强迫症上身把废纸篓清空了，哎，终于写回来了，都快被自己蠢哭了=。=
【Paper】Learning Globally-Consistent Local Distance Functions for Shape-Based Image Retrieval and Classification
原文：http://www.cnblogs.com/sunshineatnoon/p/3989653.html
