# A sparsity-enhanced periodic OGS model for weak feature extraction of rolling bearing faults

> Research article (Mechanical Systems and Signal Processing, 2021) · cited 25× · AI/ML

**Wikidata**: [openalex:W4200617823](https://www.wikidata.org/wiki/openalex:W4200617823)  
**Source**: https://4ort.xyz/entity/a-sparsity-enhanced-periodic-ogs-model-for-weak-feature-extraction-of-rolling-bearing-faults