说明：  Zero-shot Hashing with orthogonal projection for image retrieval.这篇论文作者提出了zero shot的哈希方法，利用训练集中的图像推测出查询图像的类别而不需要类别一定要在训练集中出现。
(Zero-shot Hashing with orthogonal projection for image retrieval.In this paper, the author proposes a zero shot hashing method, which uses the images in the training set to infer the category of the query image without the need for the category to appear in the training set.)