# Vector Graph Assisted Pedestrian Dead Reckoning Using an Unconstrained Smartphone

> Research article (Sensors, 2015) · cited 68× · AI/ML

**Wikidata**: [openalex:W1998552594](https://www.wikidata.org/wiki/openalex:W1998552594)  
**Source**: https://4ort.xyz/entity/vector-graph-assisted-pedestrian-dead-reckoning-using-an-unconstrained-smartphone