Table 4 Index evaluation results.

From: Remaining useful life prognosis of turbofan engines based on deep feature extraction and fusion

Method

\(Mon_{avg}\)

\(Corr_{avg}\)

Linear regression

0.8011

0.6508

BP

0.5399

0.6567

DBN

0.7422

0.7273

PCA

0.054

0.516

ELM_AE

0.049

0.426

SDAE

0.428

0.825

The proposed method

0.824

0.837