# Two-step-hybrid model based on data preprocessing and intelligent optimization algorithms (CS and GWO) for NO2 and SO2 forecasting

> Research article (Atmospheric Pollution Research, 2019) · cited 84× · AI/ML

**Wikidata**: [openalex:W2921276592](https://www.wikidata.org/wiki/openalex:W2921276592)  
**Source**: https://4ort.xyz/entity/two-step-hybrid-model-based-on-data-preprocessing-and-intelligent-optimization-algorithms-cs-and-gwo-for-no2-and-so2-for