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Table 3 The Effect of Adding a Concept-based Query to a Full-text Query
| Options | FTQ & 2 lvl Disj (0.41 ± 0.07) [0.34, 0.48] | FTQ & 2 lvl Conj (0.35 ± 0.14) [0.26, 0.46] | FTQ & 3 lvl Disj (0.54 ± 0.07) [0.47, 0.62] | FTQ & 3 lvl Conj (0.38 ± 0.16) [0.28, 0.50] |
|---|---|---|---|---|
| FTQ (0.34 ± 0.06) [0.28, 0.41] | < (0.27) | < (0.47) | <<(0.03) | < (0.38) |
| FTQ & 2 lvl Disj (0.41 ± 0.07) [0.34, 0.48] | > | <(0.11) | > | |
| FTQ & 2 lvl Conj (0.35 ± 0.14) [0.26, 0.46] | <(0.15) | <(0.43) | ||
| FTQ & 3 lvl Disj (0.54 ± 0.07) [0.47, 0.62] | > |
