Lee Y.-HCheng T.-HLan C.-WCHIH-PING WEIHu P.J.-H.2020-02-102020-02-102009https://www.scopus.com/inward/record.uri?eid=2-s2.0-70450265405&doi=10.1145%2f1593254.1593268&partnerID=40&md5=19ba6803891912be234f6924d96289edhttps://scholars.lib.ntu.edu.tw/handle/123456789/456488[SDGs]SDG17Overcoming small-size training set problem in content-based recommendation: A collaboration-based training set expansion approachconference paper10.1145/1593254.15932682-s2.0-70450265405