Multi-scale wavelet decomposition and feature fusion for rotating machinery fault diagnosis under multi-level class imbalance
Zhen Guo, Wenliao Du, Chuan Li, Yannan Yu, Tao Hu, Shuai Wang, Zhiping Liu
Topics & Concepts
Wavelet packet decompositionPattern recognition (psychology)WaveletFeature (linguistics)Artificial intelligenceFault (geology)Feature extractionWavelet transformComputer scienceFeature vectorSIGNAL (programming language)Lifting schemeDiscrete wavelet transformJoint (building)Transformation (genetics)Signal processingData miningAlgorithmDecompositionArtificial neural networkStationary wavelet transformSecond-generation wavelet transformFusionEngineeringFault detection and isolationOrthogonal waveletCondition monitoringMachine Fault Diagnosis TechniquesEngineering Diagnostics and ReliabilityFault Detection and Control Systems