signboard semantics

Amap Tech

Dec 6, 2019 · Artificial Intelligence

Semantic Understanding of Merchant Signboards for Automatic POI Name Generation at Amap

Amap's POI naming automation uses a two-stage cascade model: Stage 1 extracts token and sentence features with POS tags and domain-adapted BERT‑POI; Stage 2 employs a Bi‑LSTM to model line relationships, achieving over 95% semantic accuracy and 3‑6% recall improvements, thereby enhancing automatic signboard‑based POI name generation.