# Cardinality constraints on qualitatively uncertain data

> Research article (Data & Knowledge Engineering, 2015) · cited 19× · AI/ML

**Wikidata**: [openalex:W885593463](https://www.wikidata.org/wiki/openalex:W885593463)  
**Source**: https://4ort.xyz/entity/cardinality-constraints-on-qualitatively-uncertain-data