Research Article
Simultaneous-Fault Diagnosis of Automotive Engine Ignition Systems Using Prior Domain Knowledge and Relevance Vector Machine
Table 6
Evaluation of different combinations of techniques using GA-optimized threshold.
| F-measure over VALID with GA-optimized | Classification technique | PNN | RVM | PCRVM | | | | | | |
| Feature Extraction | | | | | | | None | 0.6875 | 0.76114 | 0.6757 | 0.79604 | 0.7005 | 0.81244 | DK | 0.7193 | 0.79819 | 0.6813 | 0.80325 | 0.7167 | 0.83023 | FFT | 0.6791 | 0.79236 | 0.7401 | 0.82129 | 0.7353 | 0.82621 | WPT + PCA (Haar, level ) | 0.6998 | 0.79125 | 0.7161 | 0.83118 | 0.7234 | 0.85816 | DK + FFT | 0.7245 | 0.79123 | 0.6755 | 0.82212 | 0.7291 | 0.85414 | DK + WPT + PCA (Haar, level ) | 0.7313 | 0.81431 | 0.7023 | 0.84524 | 0.7124 | 0.87113 |
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*The experiment was run for 20 times, and the best and were returned.
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