RectifID: Personalizing Rectified Flow with Anchored Classifier Guidance - Sun, Zhicheng; Yang, Zhenhao; Jin, Yang; Chi, Haozhe; Xu, Kun; Xu, Kun; Chen, Liwei; Jiang, Hao; Song, Yang; Gai, Kun; Mu, Yadong (Advances in Neural Information Processing Systems, 2024)