# Automated assessment of knowledge hierarchy evolution: comparing directed acyclic graphs

> Research article (Information Retrieval, 2018) · cited 13× · AI/ML

**Wikidata**: [openalex:W2904400597](https://www.wikidata.org/wiki/openalex:W2904400597)  
**Source**: https://4ort.xyz/entity/automated-assessment-of-knowledge-hierarchy-evolution-comparing-directed-acyclic-graphs