{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T08:54:34Z","timestamp":1771923274190,"version":"3.50.1"},"reference-count":36,"publisher":"IEEE","license":[{"start":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T00:00:00Z","timestamp":1760832000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T00:00:00Z","timestamp":1760832000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,10,19]]},"DOI":"10.1109\/iccvw69036.2025.00211","type":"proceedings-article","created":{"date-parts":[[2026,2,23]],"date-time":"2026-02-23T20:44:02Z","timestamp":1771879442000},"page":"2016-2025","source":"Crossref","is-referenced-by-count":0,"title":["Enhancing Identity Preservation in Portrait Generation via Reward Optimization"],"prefix":"10.1109","author":[{"given":"Yang","family":"Liu","sequence":"first","affiliation":[{"name":"King's College,London"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hongyu","family":"Zang","sequence":"additional","affiliation":[{"name":"Beijing Institute of Technology"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chao","family":"Xu","sequence":"additional","affiliation":[{"name":"Sany Group"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Baigui","family":"Sun","sequence":"additional","affiliation":[{"name":"Sany Group"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shan","family":"Luo","sequence":"additional","affiliation":[{"name":"King's College,London"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"263","reference":[{"key":"ref1","article-title":"Training diffusion models with reinforcement learning","volume":"abs\/2305.13301","author":"Black","year":"2023","journal-title":"CoRR"},{"key":"ref2","volume-title":"Monte carlo methods in financial engineering","author":"Carlo","year":"2001"},{"key":"ref3","article-title":"Photoverse: Tuning-free image customization with text-to-image diffusion models","volume":"abs\/2309.05793","author":"Chen","year":"2023","journal-title":"CoRR"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1109\/CVPR42600.2020.00525"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1109\/TPAMI.2021.3087709"},{"key":"ref6","first-page":"8780","article-title":"Diffusion models beat gans on image synthesis","volume-title":"Advances in Neural Information Processing Systems 34: Annual Conference on Neural Information Processing Systems 2021, NeurIPS 2021","author":"Dhariwal","year":"2021"},{"key":"ref7","article-title":"RAFT: reward ranked finetuning for generative foundation model alignment","volume":"abs\/2304.06767","author":"Dong","year":"2023","journal-title":"CoRR"},{"key":"ref8","first-page":"1387","article-title":"Fast second order stochastic back-propagation for variational inference","volume-title":"Advances in Neural Information Processing Systems 28: Annual Conference on Neural Information Processing Systems 2015","author":"Fan","year":"2015"},{"key":"ref9","article-title":"An image is worth one word: Personalizing text-to-image generation using textual inversion","volume-title":"The Eleventh International Conference on Learning Representations, ICLR 2023","author":"Gal","year":"2023"},{"key":"ref10","first-page":"10835","article-title":"Scaling laws for reward model overoptimization","volume-title":"International Conference on Machine Learning, ICML 2023","author":"Gao","year":"2023"},{"key":"ref11","article-title":"Reinforced self-training (rest) for language modeling","volume":"abs\/2308.08998","author":"Gulcehre","year":"2023","journal-title":"CoRR"},{"key":"ref12","article-title":"Classifier-free diffusion guidance","volume":"abs\/2207.12598","author":"Ho","year":"2022","journal-title":"CoRR"},{"key":"ref13","article-title":"Denoising diffusion probabilistic models","volume-title":"Advances in Neural Information Processing Systems 33: Annual Conference on Neural Information Processing Systems 2020, NeurIPS 2020","author":"Ho","year":"2020"},{"key":"ref14","article-title":"Lora: Low-rank adaptation of large language models","volume-title":"The Tenth International Conference on Learning Representations, ICLR 2022","author":"Hu","year":"2022"},{"key":"ref15","article-title":"Categorical reparameterization with gumbel-softmax","volume-title":"5th International Conference on Learning Representations, ICLR 2017","author":"Jang","year":"2017"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1109\/CVPR52729.2023.00192"},{"key":"ref17","article-title":"Aligning text-to-image models using human feedback","volume":"abs\/2302.12192","author":"Lee","year":"2023","journal-title":"CoRR"},{"key":"ref18","first-page":"12888","article-title":"BLIP: bootstrapping language-image pre-training for unified vision-language understanding and generation","volume-title":"International Conference on Machine Learning, ICML 2022","author":"Li","year":"2022"},{"key":"ref19","article-title":"Continuous control with deep reinforcement learning","volume-title":"4th International Conference on Learning Representations, ICLR 2016","author":"Lillicrap","year":"2016"},{"key":"ref20","article-title":"Facechain: A play-ground for identity-preserving portrait generation","volume":"abs\/2308.14256","author":"Liu","year":"2023","journal-title":"CoRR"},{"key":"ref21","article-title":"Dpm-solver: A fast ODE solver for diffusion probabilistic model sampling in around 10 steps","author":"Lu","year":"2022","journal-title":"NeurIPS"},{"key":"ref22","first-page":"132:1","article-title":"Monte carlo gradient estimation in machine learning","volume":"21","author":"Mohamed","year":"2020","journal-title":"J. Mach. Learn. Res"},{"key":"ref23","article-title":"Training language models to follow instructions with human feedback","author":"Ouyang","year":"2022","journal-title":"NeurIPS"},{"key":"ref24","doi-asserted-by":"publisher","DOI":"10.1016\/j.wneu.2021.04.050"},{"key":"ref25","article-title":"Aligning text-to-image diffusion models with reward backpropagation","volume":"abs\/2310.03739","author":"Prabhudesai","year":"2023","journal-title":"CoRR"},{"key":"ref26","first-page":"8748","article-title":"Learning transferable visual models from natural language supervision","volume-title":"Proceedings of the 38th International Conference on Machine Learning, ICML 2021","author":"Radford","year":"2021"},{"key":"ref27","doi-asserted-by":"publisher","DOI":"10.1109\/CVPR52688.2022.01042"},{"key":"ref28","doi-asserted-by":"publisher","DOI":"10.1109\/CVPR52729.2023.02155"},{"key":"ref29","doi-asserted-by":"publisher","DOI":"10.48550\/ARXIV.1707.06347"},{"key":"ref30","article-title":"Denoising diffusion implicit models","volume-title":"9th International Conference on Learning Representations, ICLR 2021","author":"Song","year":"2021"},{"key":"ref31","doi-asserted-by":"publisher","DOI":"10.1145\/3610548.3618249"},{"key":"ref32","doi-asserted-by":"publisher","DOI":"10.1007\/BF00992696"},{"key":"ref33","doi-asserted-by":"publisher","DOI":"10.1109\/iccv51070.2023.00200"},{"key":"ref34","article-title":"Imagere-ward: Learning and evaluating human preferences for text-to-image generation","volume":"abs\/2304.05977","author":"Xu","year":"2023","journal-title":"CoRR"},{"key":"ref35","article-title":"Ip-adapter: Text compatible image prompt adapter for text-to-image diffusion models","volume":"abs\/2308.06721","author":"Ye","year":"2023","journal-title":"CoRR"},{"key":"ref36","article-title":"Fine-tuning language models from human preferences","volume":"abs\/1909.08593","author":"Ziegler","year":"2019","journal-title":"CoRR"}],"event":{"name":"2025 IEEE\/CVF International Conference on Computer Vision Workshops (ICCVW)","location":"Honolulu, HI, USA","start":{"date-parts":[[2025,10,19]]},"end":{"date-parts":[[2025,10,20]]}},"container-title":["2025 IEEE\/CVF International Conference on Computer Vision Workshops (ICCVW)"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx8\/11373940\/11374285\/11374555.pdf?arnumber=11374555","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T07:50:06Z","timestamp":1771919406000},"score":1,"resource":{"primary":{"URL":"https:\/\/ieeexplore.ieee.org\/document\/11374555\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,10,19]]},"references-count":36,"URL":"https:\/\/doi.org\/10.1109\/iccvw69036.2025.00211","relation":{},"subject":[],"published":{"date-parts":[[2025,10,19]]}}}