[Retracted] A Two-Phase Method for Optimization of the SPARQL Query

Table 4

Statistics for datasets.

Datasets	The number of predicates	The number of triples	Size (GB)
YAGO2	94	195,948,254	7.8
LUBM	17	1,243,781,345	72
DBSPB	39,675	183,000,000	25
SP2B	77	1,399,000,000	123