Information bottleneck-guided KNN contrastive hashing for unsupervised cross-modal retrieval. - Lei Zhu 005; Zhengchang Yuan; Zeqian Yi; Chengyuan Zhang 001; Lin Wu 001; Ying Zhang 001; Farid Boussaïd; Mohammed Bennamoun; Shichao Zhang 001 (Knowl. Based Syst., 2025)