# An approach of checking an exit sign system based on navigation graph networks

> Research article (Advanced Engineering Informatics, 2020) · cited 22× · AI/ML

**Wikidata**: [openalex:W3089696604](https://www.wikidata.org/wiki/openalex:W3089696604)  
**Source**: https://4ort.xyz/entity/an-approach-of-checking-an-exit-sign-system-based-on-navigation-graph-networks