# An efficient online wkNN diagnostic strategy for variable refrigerant flow system based on coupled feature selection method

> Research article (Energy and Buildings, 2018) · cited 24× · AI/ML

**Wikidata**: [openalex:W2901903620](https://www.wikidata.org/wiki/openalex:W2901903620)  
**Source**: https://4ort.xyz/entity/an-efficient-online-wknn-diagnostic-strategy-for-variable-refrigerant-flow-system-based-on-coupled-feature-selection-met