Table 8 Overall performance comparison (Mean ± Standard Deviation).

From: Construction of intelligent decision support systems through integration of retrieval-augmented generation and knowledge graphs

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