# Approximate OLAP of document-oriented databases: A variety-aware approach

> Research article (Information Systems, 2019) · cited 30× · AI/ML

**Wikidata**: [openalex:W2917247870](https://www.wikidata.org/wiki/openalex:W2917247870)  
**Source**: https://4ort.xyz/entity/approximate-olap-of-document-oriented-databases-a-variety-aware-approach