Lien-Wu Chen Jun-Xian Liu EasyFind: A Mobile Crowdsourced Guiding System with Lost Item Finding Based on IoT Technologies. 343-345 2019 PerCom Workshops https://doi.org/10.1109/PERCOMW.2019.8730851 conf/percom/2019w db/conf/percom/percomw2019.html#ChenL19