Su, C.-C.C.-C.SuPU-JEN CHENG2020-05-042020-05-042011https://scholars.lib.ntu.edu.tw/handle/123456789/489521Recommend at opportune momentsconference paper10.1007/978-3-642-25631-8_21https://www.scopus.com/inward/record.uri?eid=2-s2.0-84255163161&doi=10.1007%2f978-3-642-25631-8_21&partnerID=40&md5=aef87c7ae4c1440ab6305d925654f78e