Intermodality Correlation graphs 3 Cross-modal 3 Cross-modal hash learning 3 Deep learning 3 Deep model 3 Dependency relationship 3 Hamming distance 3 Hash functions 3 Hashing method 3 Hashing retrieval 3 Higher dimensional features 3 Image regions 3 Modal analysis 3 Semantics 3 cross-modal hash learning 3 deep model 3 hashing retrieval 3 Alignment 1 Criminal investigation 1 Cross modality 1 Cross-modality gap 1 Face recognition 1 Facial images 1 Feature alignment 1 Image retrieval 1 Matchings 1 Sketch face recognition 1 Small sample problem 1 Small samples 1