{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T08:48:31Z","timestamp":1768466911979,"version":"3.49.0"},"reference-count":36,"publisher":"Institute of Electrical and Electronics Engineers (IEEE)","license":[{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/ieeexplore.ieee.org\/Xplorehelp\/downloads\/license-information\/IEEE.html"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"}],"funder":[{"name":"National Key Research and Development Program of China","award":["2023YFB3209000"],"award-info":[{"award-number":["2023YFB3209000"]}]},{"name":"National Key Research and Development Program of China","award":["2023YFB3209004"],"award-info":[{"award-number":["2023YFB3209004"]}]},{"name":"National Key Research and Development Program of China","award":["2023YFB3209005"],"award-info":[{"award-number":["2023YFB3209005"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["62202073"],"award-info":[{"award-number":["62202073"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"Key Laboratory of Emedded System and Service Computing","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IEEE Trans. Netw. Serv. Manage."],"published-print":{"date-parts":[[2026]]},"DOI":"10.1109\/tnsm.2025.3640927","type":"journal-article","created":{"date-parts":[[2025,12,5]],"date-time":"2025-12-05T18:38:17Z","timestamp":1764959897000},"page":"1465-1478","source":"Crossref","is-referenced-by-count":0,"title":["VNF-FG Placement and Admission Control in SDN and NFV-Enabled IoT Networks: A Hierarchical Deep Reinforcement Learning Method"],"prefix":"10.1109","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-8584-1025","authenticated-orcid":false,"given":"Xi","family":"Xu","sequence":"first","affiliation":[{"name":"College of Computer and Information Science, Southwest University, Chongqing, China"}]},{"given":"Yang","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Computer and Information Science, Southwest University, Chongqing, China"}]},{"given":"Wei","family":"Huang","sequence":"additional","affiliation":[{"name":"College of Computer and Information Science, Southwest University, Chongqing, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6741-4871","authenticated-orcid":false,"given":"Songtao","family":"Guo","sequence":"additional","affiliation":[{"name":"College of Computer Science, Chongqing University, Chongqing, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6491-9556","authenticated-orcid":false,"given":"Guiyan","family":"Liu","sequence":"additional","affiliation":[{"name":"College of Computer Science, Chongqing University, Chongqing, China"}]}],"member":"263","reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.3390\/s23167194"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1145\/3379444"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1016\/j.comnet.2020.107739"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1016\/j.micpro.2023.104928"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1109\/tnsm.2021.3123460"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1109\/ijcnn60899.2024.10650143"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1109\/TNSM.2023.3243435"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1016\/j.comnet.2020.107726"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1016\/j.endm.2016.03.028"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1109\/TNSM.2016.2598420"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1109\/tpds.2023.3242952"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1109\/ICCECT57938.2023.10141342"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1109\/NOMS59830.2024.10575040"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1109\/jsac.2017.2760162"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1109\/tpds.2018.2802518"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1109\/jiot.2017.2726120"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1109\/infocom.2014.6847918"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.1016\/j.asoc.2021.107401"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.1109\/glocom.2018.8647858"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.1016\/j.comnet.2021.108157"},{"key":"ref21","doi-asserted-by":"publisher","DOI":"10.1109\/TCYB.2016.2645123"},{"key":"ref22","doi-asserted-by":"publisher","DOI":"10.1109\/tnsm.2020.2971543"},{"key":"ref23","doi-asserted-by":"publisher","DOI":"10.1109\/infcomw.2019.8845171"},{"key":"ref24","article-title":"How attentive are graph attention networks?","author":"Brody","year":"2021","journal-title":"arXiv:2105.14491"},{"key":"ref25","doi-asserted-by":"publisher","DOI":"10.48550\/ARXIV.1609.02907"},{"key":"ref26","doi-asserted-by":"publisher","DOI":"10.1109\/tnsm.2021.3120297"},{"key":"ref27","article-title":"Graph attention networks","author":"Velickovic","year":"2017","journal-title":"arXiv:1710.10903"},{"key":"ref28","doi-asserted-by":"publisher","DOI":"10.1016\/s0004-3702(99)00052-1"},{"key":"ref29","first-page":"10524","article-title":"On layer normalization in the transformer architecture","volume-title":"Proc. Int. Conf. Mach. Learn.","author":"Xiong"},{"key":"ref30","article-title":"Proximal policy optimization algorithms","author":"Schulman","year":"2017","journal-title":"arXiv:1707.06347"},{"key":"ref31","article-title":"High-dimensional continuous control using generalized advantage estimation","author":"Schulman","year":"2015","journal-title":"arXiv:1506.02438"},{"key":"ref32","article-title":"Understanding the impact of entropy on policy optimization","author":"Ahmed","year":"2018","journal-title":"arXiv:1811.11214"},{"key":"ref33","doi-asserted-by":"publisher","DOI":"10.1145\/3580305.3599358"},{"key":"ref34","doi-asserted-by":"publisher","DOI":"10.1109\/JIOT.2020.3022572"},{"key":"ref35","doi-asserted-by":"publisher","DOI":"10.25080\/TCWV9851"},{"key":"ref36","doi-asserted-by":"publisher","DOI":"10.1109\/jsac.2020.2986662"}],"container-title":["IEEE Transactions on Network and Service Management"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx8\/4275028\/11319294\/11278774.pdf?arnumber=11278774","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T20:40:36Z","timestamp":1768423236000},"score":1,"resource":{"primary":{"URL":"https:\/\/ieeexplore.ieee.org\/document\/11278774\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026]]},"references-count":36,"URL":"https:\/\/doi.org\/10.1109\/tnsm.2025.3640927","relation":{},"ISSN":["1932-4537","2373-7379"],"issn-type":[{"value":"1932-4537","type":"electronic"},{"value":"2373-7379","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026]]}}}