# PICAR: An Efficient Extendable Approach for Fitting Hierarchical Spatial Models

> Research article (Technometrics, 2021) · cited 14× · AI/ML

**Wikidata**: [openalex:W3174108767](https://www.wikidata.org/wiki/openalex:W3174108767)  
**Source**: https://4ort.xyz/entity/picar-an-efficient-extendable-approach-for-fitting-hierarchical-spatial-models