# Cross-efficiency evaluation and decomposition with directional distance function in series and parallel systems

> Research article (Expert Systems with Applications, 2021) · cited 20× · AI/ML

**Wikidata**: [openalex:W3151424644](https://www.wikidata.org/wiki/openalex:W3151424644)  
**Source**: https://4ort.xyz/entity/cross-efficiency-evaluation-and-decomposition-with-directional-distance-function-in-series-and-parallel-systems