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Table 1 Characteristics of recent deep learning hashing methods

From: Deep learning hashing for mobile visual search

ID Method Category Network Layer Feature+hashing
1 Deep learning of binary hash [68] Supervised Single 8 Separate
2 Deep hashing for compact binary codes [69] Unsupervised/supervised Single 3 Separate
3 Unsupervised deep neural networks hashing [23] Unsupervised Single 16 Separate
4 Supervised deep hashing [22] Supervised Single 5 Together
5 Semantics-preserving deep hashing [23] Supervised Single 8 Together
6 Deep semantic ranking hashing [24] Supervised Single 8 Together
7 Binary deep neural network hashing [26] Unsupervised/supervised Single 5 Together
8 Bit-scalable deep hashing [27] Triplet Parallel 10 Together
9 One-stage deep hashing [28] Triplet Parallel 10 Together
10 Deep pairwise-supervised hashing [29] Pairwise Parallel 8 Together
11 Deep hashing network [72] Pairwise Parallel 8 Together
12 Deep semantic-preserving and ranking-based hashing [73] Triplet Parallel 19 Together