# The direction-constrained k nearest neighbor query

> Research article (GeoInformatica, 2016) · cited 13× · AI/ML

**Wikidata**: [openalex:W2288975584](https://www.wikidata.org/wiki/openalex:W2288975584)  
**Source**: https://4ort.xyz/entity/the-direction-constrained-k-nearest-neighbor-query