Online Asymmetric Supervised Discrete Cross-Modal Hashing for Streaming Multimedia Data

Fan Yang, Xinqi Liu, Fumin Ma, Xiaojian Ding, Kaixiang Wang

Abstract: Highlights•We introduce mechanisms for dynamic sample cognition and asymmetric knowledge guidance. New sample hash codes are mapped to the concept cognition space, maximizing semantic similarity mining in streaming data.•Adaptive edge regression strategy is used to learn hash function and improve retrieval precision.•The non-relaxation iterative discretization method is used to avoid quantization errors.