# Improving PIR Sensor Network-Based Activity Recognition with PCA and KNN

> Research article (2021 International Conference on Intelligent Cybernetics Technology & Applications (ICICyTA), 2021) · cited 19× · AI/ML

**Wikidata**: [openalex:W4210262880](https://www.wikidata.org/wiki/openalex:W4210262880)  
**Source**: https://4ort.xyz/entity/improving-pir-sensor-network-based-activity-recognition-with-pca-and-knn