Papers Using Very Deep Autoencoders for Content-Based Image Retrieval intro: ESANN 2011. Alex Krizhevsky, and Geoffrey E. Hinton paper: https://www.cs.toronto.edu/~hinton/absps/esann-deep-final.pdf Learning High-level Image Representation for Image Retrieval via Multi-Task DNN using Clickthrough Data paper: http://arxiv.org/abs/1312.4740 Neural Codes for Image Retrieval project page: http://sites.