Table 4.
Accuracy comparison for the Bayesian belief networks [necessary path condition (NPC),29 path condition (PC),30 greedy search-and-score31 with Bayesian information criterion (BIC),32 Chow–Liu tree,33 Rebane–Pearl poly tree,34 tree augmented naïve (TAN) Bayes model,35 maximum log likelihood (ML),36 Akaike information criterion (AIC),37 minimum description length (MDL)38 and K2,39], and the ANN (artificial neural network) using 10-fold cross validation
| Diagnosis | Incorrect cases (%) using 10-fold cross-validation |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| NPC | PC | BIC | Chow–Liu | Rabena–Pearl | TAN | ML | AIC | MDL | K2 | ANN | |
| Bone changes | |||||||||||
| Normal (399) | 0 (0.00%) | 0 (0.00%) | 1 (0.17%) | 2 (0.34%) | 25 (4.24%) | 38 (6.44%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) |
| Indeterminate (13) | 2 (0.34%) | 2 (0.34%) | 4 (0.68%) | 8 (1.36%) | 4 (0.68%) | 12 (2.03%) | 10 (1.69%) | 5 (0.85%) | 5 (0.85%) | 1 (0.17%) | 0 (0.00%) |
| Concavity (31) | 0 (0.00%) | 0 (0.00%) | 1 (0.17%) | 8 (1.36%) | 10 (1.69%) | 19 (3.22%) | 1 (0.17%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) |
| Osteoarthrosis-slight (126) | 1 (0.17%) | 1 (0.17%) | 6 (1.02%) | 8 (1.36%) | 27 (4.58%) | 55 (9.32%) | 1 (0.17%) | 1 (0.17%) | 1 (0.17%) | 2 (0.34%) | 0 (0.00%) |
| Osteoarthrosis-severe (21) | 1 (0.17%) | 1 (0.17%) | 1 (0.17%) | 4 (0.68%) | 5 (0.85%) | 5 (0.85%) | 1 (0.17%) | 1 (0.17%) | 2 (0.34%) | 1 (0.17%) | 0 (0.00%) |
| N/A | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 1 (0.17%) | 1 (0.17%) | 1 (0.17%) | 1 (0.17%) | 0 (0.00%) |
| Subtotal (590) | 4 (0.68%) | 4 (0.68%) | 13 (2.20%) | 30 (5.08%) | 71 (12.03%) | 129 (21.86%) | 14 (2.37%) | 8 (1.36%) | 9 (1.53%) | 5 (0.85%) | 0 (0.00%) |
| Disc displacement | |||||||||||
| Normal (250) | 1 (0.17%) | 1 (0.17%) | 1 (0.17%) | 0 (0.00%) | 0 (0.00%) | 1 (0.17%) | 0 (0.00%) | 1 (0.17%) | 1 (0.17%) | 1 (0.17%) | 0 (0.00%) |
| ADDwR (97) | 1 (0.17%) | 1 (0.17%) | 3 (0.51%) | 1 (0.17%) | 5 (0.85%) | 7 (1.19%) | 2 (0.34%) | 0 (0.00%) | 1 (0.17%) | 1 (0.17%) | 0 (0.00%) |
| ADDwoR (127) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 4 (0.68%) | 5 (0.85%) | 3 (0.51%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) |
| Lateral (19) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) |
| ADDwR + lateral (60) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 8 (1.36%) | 3 (0.51%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 1 (0.17%) | 0 (0.00%) |
| ADDwoR + lateral (37) | 0 (0.00%) | 0 (0.00%) | 2 (0.34%) | 0 (0.00%) | 0 (0.00%) | 3 (0.51%) | 3 (0.51%) | 0 (0.00%) | 0 (0.00%) | 1 (0.17%) | 0 (0.00%) |
| N/A | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 1 (0.17%) | 1 (0.17%) | 1 (0.17%) | 1 (0.17%) | 0 (0.00%) |
| Subtotal (590) | 2 (0.34%) | 2 (0.34%) | 6 (1.02%) | 1 (0.17%) | 17 (2.88%) | 19 (3.22%) | 9 (1.53%) | 2 (0.34%) | 3 (0.51%) | 5 (0.85%) | 0 (0.00%) |
| Total (1180) | 6 (0.51%) | 6 (0.51%) | 19 (1.61%) | 31 (2.63%) | 88 (7.46%) | 148 (12.54%) | 23 (1.95%) | 10 (0.85%) | 12 (1.02%) | 10 (0.85%) | 0 (0.00%) |
ADD, anterior disc displacement; N/A, not applicable; woR, without reduction; wR, with reduction.
295 cases × 2 sides = 590 temporomandibular joints.