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Table 6 Comparison of query response time (ms) metric of the proposed and existing methods on 12 queries

From: An empirical study on the evaluation of the RDF storage systems

Queries RDFSPO RDFVP RDFPC TDB SDB RDF4JM RDF4JD
Q1 820.4 (7) 128.5 (1) 130.45 (3) 360.2 (5) 400.6 (6) 138.2 (4) 130.4 (2)
Q2 835.66 (7) 133.9 (1) 140.2 (3) 368.6 (5) 457.8 (6) 145.2 (4) 135.8 (2)
Q3 831.33 (7) 130.4 (1) 137.8 (3) 367 (5) 452.6 (6) 143.2 (4) 134.2 (2)
Q4 836.2 (7) 131.4 (1) 135.6 (2) 352.4 (5) 469.33 (6) 147.8 (4) 136 (3)
Q5 847.6 (7) 135.5 (1) 138.47 (2) 362 (5) 480.5 (6) 154.8 (4) 138.8 (3)
Q6 833.77 (7) 129.4 (1) 133.22 (3) 357 (5) 423 (6) 146.8 (4) 131.6 (2)
Q7 828.21 (7) 118 (1) 125.56 (2) 358.4 (5) 460.21 (6) 148.8 (4) 128.6 (3)
Q8 890.31 (7) 128.34 (1) 136.6 (3) 356 (5) 443.5 (6) 147 (4) 131.2 (2)
Q9 895.34 (7) 133.3 (1) 135.22 (2) 363 (5) 476 (6) 155.6 (4) 137.4 (3)
Q10 822.2 (7) 124.76 (1) 129.5 (2) 369.6 (5) 460.43 (6) 145.6 (4) 134.6 (3)
Q11 860,8 (7) 129,4 (1) 137,2 (3) 361,5 (5) 448,1 (6) 145,1 (4) 132,7 (2)
Q12 828,0 (7) 127,1 (1) 131,4 (2) 363,3 (5) 441,7 (6) 146,2 (4) 133,1 (3)
Average rank (7.00) (1.00) (2.50) (5.00) (6.00) (4.00) (2.50)
  1. The ranks in the parentheses () are used in the computation of the Friedman test