{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T08:33:22Z","timestamp":1775550802912,"version":"3.50.1"},"reference-count":40,"publisher":"Institute of Electrical and Electronics Engineers (IEEE)","license":[{"start":{"date-parts":[[2019,1,1]],"date-time":"2019-01-01T00:00:00Z","timestamp":1546300800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"funder":[{"name":"Beijing Education Commission Research Project of China","award":["KM201911232004"],"award-info":[{"award-number":["KM201911232004"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61672105"],"award-info":[{"award-number":["61672105"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"crossref","award":["2018YFB1004100"],"award-info":[{"award-number":["2018YFB1004100"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IEEE Access"],"published-print":{"date-parts":[[2019]]},"DOI":"10.1109\/access.2019.2939945","type":"journal-article","created":{"date-parts":[[2019,9,6]],"date-time":"2019-09-06T19:57:31Z","timestamp":1567799851000},"page":"145426-145434","source":"Crossref","is-referenced-by-count":15,"title":["UTSP: User-Based Two-Step Recommendation With Popularity Normalization Towards Diversity and Novelty"],"prefix":"10.1109","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1004-3613","authenticated-orcid":false,"given":"Ke","family":"Niu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiangyu","family":"Zhao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fangfang","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ning","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xueping","family":"Peng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wei","family":"Chen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"263","reference":[{"key":"ref39","doi-asserted-by":"publisher","DOI":"10.1145\/582415.582418"},{"key":"ref38","doi-asserted-by":"publisher","DOI":"10.1209\/0295-5075\/88\/68008"},{"key":"ref33","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4899-7637-6_26"},{"key":"ref32","doi-asserted-by":"publisher","DOI":"10.1145\/2043932.2043955"},{"key":"ref31","doi-asserted-by":"publisher","DOI":"10.1007\/s10115-014-0779-2"},{"key":"ref30","doi-asserted-by":"publisher","DOI":"10.1145\/2959100.2959149"},{"key":"ref37","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0183570"},{"key":"ref36","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-40173-2_35"},{"key":"ref35","doi-asserted-by":"publisher","DOI":"10.1287\/mnsc.1080.0974"},{"key":"ref34","doi-asserted-by":"publisher","DOI":"10.4018\/IJWP.2019010101"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2016.2600258"},{"key":"ref40","doi-asserted-by":"publisher","DOI":"10.1145\/2365952.2365981"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1145\/3038912.3052569"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1145\/1401890.1401944"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-540-68880-8_32"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2017.2772226"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1145\/1864708.1864721"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1145\/1645953.1646050"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1016\/j.knosys.2013.04.009"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.1145\/2043932.2043956"},{"key":"ref19","first-page":"2062","article-title":"Personalized ranking metric embedding for next new poi recommendation","author":"feng","year":"2015","journal-title":"Proc 24th Int Joint Conf Artif Intell"},{"key":"ref28","doi-asserted-by":"publisher","DOI":"10.1145\/2792838.2800172"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2018.2789866"},{"key":"ref27","doi-asserted-by":"publisher","DOI":"10.1145\/2645710.2645745"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1145\/3159652.3159656"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1145\/371920.372071"},{"key":"ref29","doi-asserted-by":"publisher","DOI":"10.1145\/2645710.2645744"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2016.2564997"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1007\/s11280-012-0187-z"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-319-90092-6_10"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1109\/TKDE.2017.2668419"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1145\/3178876.3186154"},{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2018.2863543"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.1007\/s10844-014-0334-3"},{"key":"ref22","doi-asserted-by":"publisher","DOI":"10.1145\/963770.963774"},{"key":"ref21","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-319-32055-7_2"},{"key":"ref24","doi-asserted-by":"publisher","DOI":"10.1145\/2645710.2645752"},{"key":"ref23","doi-asserted-by":"publisher","DOI":"10.1109\/TKDE.2011.15"},{"key":"ref26","doi-asserted-by":"publisher","DOI":"10.1145\/2645710.2645737"},{"key":"ref25","doi-asserted-by":"publisher","DOI":"10.1016\/j.knosys.2017.02.009"}],"container-title":["IEEE Access"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx7\/6287639\/8600701\/08826263.pdf?arnumber=8826263","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,8,10]],"date-time":"2021-08-10T19:40:28Z","timestamp":1628624428000},"score":1,"resource":{"primary":{"URL":"https:\/\/ieeexplore.ieee.org\/document\/8826263\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019]]},"references-count":40,"URL":"https:\/\/doi.org\/10.1109\/access.2019.2939945","relation":{},"ISSN":["2169-3536"],"issn-type":[{"value":"2169-3536","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019]]}}}