| Double-Bit Quantization for Hashing Recent countries visiting this post |  |
 | 7 | United States |
 | 5 | |
 | 4 | China |
 | 3 | Germany |
 | 1 | Denmark |
 | 1 | Italy |
| Double-Bit Quantization for Hashing Recent countries visiting this post | |
| 7 | United States |
| 5 | |
| 4 | China |
| 3 | Germany |
| 1 | Denmark |
| 1 | Italy |