Liang, C.-K.C.-K.LiangHsieh, Y.-T.Y.-T.HsiehChuang, T.-J.T.-J.ChuangWang, Y.Y.WangWeng, M.-F.M.-F.WengYUNG-YU CHUANG2020-05-042020-05-042009https://scholars.lib.ntu.edu.tw/handle/123456789/490703[SDGs]SDG4Learning landmarks by exploiting social mediaconference paper10.1007/978-3-642-11301-7_23https://www.scopus.com/inward/record.uri?eid=2-s2.0-77249086630&doi=10.1007%2f978-3-642-11301-7_23&partnerID=40&md5=5cb31baed56e3af07fa0092d0be632f2