Our approach is focus on Activity Image-to-Video Retrieval (AIVR) task. The compared methods are state-of-the-art single modality hashing methods, multiple modalities hashing methods and cross-modal retrieval methods.
Single modality hashing methods
Some hashing baselines for image retrieval can be found in https://github.com/willard-yuan/hashing-baseline-for-image-retrieval.
Multiple modalities hashing methods
More details refer to https://github.com/czxxjtu/Hash-Learning.github.io. Some details about hashing methods are in hashing-baseline-for-image-retrieval-master folder.
Cross-modal retrieval methods
The compared cross-modal retrieval methods are according to the paper:
 Bokun Wang, Yang Yang, Xing Xu, Alan Hanjalic, and Heng Tao Shen. "Adversarial Cross-Modal Retrieval". In Proceedings of 25th ACM International Conference on Multimedia (ACM MM), 2017.