Inspec keywords: neural nets; signal classification; machine bearings; decomposition; support vector machines; feature selection; feature extraction; fault diagnosis; probability; particle swarm optimisation; mechanical engineering computing

Other keywords: particle swarm optimisation; nonlocal-means denoising algorithm; feature classification; support-vector machine; PSO; feature extraction technique; distance evaluation technique; empirical mode decomposition; probabilistic neural network; vibration signal; fault-characteristic information; bearing-fault-diagnosis problem; DET; k-nearest neighbour; two-stage feature selection; pattern recognition problem

Subjects: Digital signal processing; Optimisation; Neural computing techniques; Mechanical engineering applications of IT; Statistics; Knowledge engineering techniques; Civil and mechanical engineering computing; Optimisation techniques; Mechanical components; Signal processing and detection; Other topics in statistics; Optimisation techniques; Other topics in statistics