fingerprint localization

Amap Tech

Dec 20, 2019 · Artificial Intelligence

Advances in Network Positioning: Unsupervised Clustering and Supervised Hierarchical Ranking Algorithms

Gaode’s network positioning has evolved from unsupervised clustering of massive AP fingerprints and Bayesian grid ranking to a supervised two‑level hierarchical model that scores candidate grids with a neural‑network LTR loss, while adding scenario‑specific CNN and spatio‑temporal modules for indoor, rail and subway accuracy, and it now looks toward image‑based, 5G and IoT positioning.