Weighted-Attribute Triplet Hashing for Large-Scale Similar Judicial Case Matching

Table 1

Performance in terms of precision scores with deep different lengths of hash code.

Method	Hash bits
	48 bits	64 bits	96 bits	128 bits	256 bits	512 bits	768 bits
SH	0.4750	0.4820	0.4850	0.4760	0.5050	0.5120	0.5200
PCA-ITQ	0.5066	0.5096	0.5106	0.5196	0.5040	0.5132	0.5160
PCA-RR	0.5114	0.5126	0.5070	0.5186	0.5098	0.5048	0.5074
MFH	0.5244	0.5206	0.5230	0.5258	0.5240	0.5230	0.5322
WATH_WS	0.5790	0.5630	0.5590	0.5800	0.5870	0.5620	0.5690
WATH_Con	0.5988	0.5717	0.6000	0.6030	0.5915	0.5925	0.5880
WATH_Add	0.6060	0.5904	0.5948	0.6018	0.5988	0.5976	0.5988