OLCH: Online Label Consistent Hashing for streaming cross-modal retrieval

Shu-Juan Peng, Jinhan Yi, Xin Liu, Yiu-ming Cheung, Zhen Cui, Taihao Li

Abstract: Highlights•Present an efficient online label consistent hashing approach to benefit cross-modal retrieval for streaming data.•Develop an online semantic representation learning framework to preserve the semantic similarity.•Propose a mini-batch online gradient descent approach to incrementally optimize the hash functions.•Exploit a forward–backward splitting scheme to learn the discriminative hash codes.