Research Article
Simultaneous-Fault Diagnosis of Automotive Engine Ignition Systems Using Prior Domain Knowledge and Relevance Vector Machine
Table 7
Evaluation of different combinations of techniques using PSO-optimized threshold.
| F-measure over VALID with PSO-optimized | Classification technique | PNN | RVM | PCRVM | | | | | | |
| Feature extraction | | | | | | | None | 0.6934 | 0.7711 | 0.6877 | 0.78014 | 0.6993 | 0.80563 | DK | 0.6983 | 0.77132 | 0.6919 | 0.80532 | 0.7154 | 0.83011 | FFT | 0.6916 | 0.78932 | 0.6997 | 0.81829 | 0.7278 | 0.82622 | WPT + PCA (Haar, level ) | 0.7024 | 0.79451 | 0.7068 | 0.82788 | 0.7177 | 0.87112 | DK + FFT | 0.7161 | 0.78398 | 0.6949 | 0.83129 | 0.7269 | 0.84941 | DK + WPT + PCA (Haar, level ) | 0.7116 | 0.82561 | 0.7114 | 0.85445 | 0.7147 | 0.88911 |
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*The experiment was run for 20 times and the best and were returned.
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