Table 8 Overall performance comparison (Mean ± Standard Deviation).
Metric | IKEDS | KG-only | RAG-only | Parallel-KG-RAG | Statistical significance |
|---|---|---|---|---|---|
Decision accuracy (%) | 85.7 ± 3.2 | 74.6 ± 4.1 | 67.3 ± 4.8 | 77.6 ± 3.9 | p < 0.001, F = 28.4 |
Knowledge relevance | 0.91 ± 0.04 | 0.83 ± 0.05 | 0.74 ± 0.07 | 0.82 ± 0.06 | p < 0.001, F = 21.6 |
Explanation quality | 0.88 ± 0.05 | 0.75 ± 0.07 | 0.67 ± 0.08 | 0.76 ± 0.06 | p < 0.001, F = 24.2 |
Cross-domain integration | 0.84 ± 0.06 | 0.49 ± 0.09 | 0.47 ± 0.08 | 0.63 ± 0.07 | p < 0.001, F = 35.7 |
Adaptability | 0.79 ± 0.07 | 0.58 ± 0.08 | 0.61 ± 0.09 | 0.64 ± 0.08 | p < 0.001, F = 18.3 |