no code implementations • 22 Mar 2024 • Tianxi Cai, Feiqing Huang, Ryumei Nakada, Linjun Zhang, Doudou Zhou
To accommodate the statistical analysis of multimodal EHR data, in this paper, we propose a novel multimodal feature embedding generative model and design a multimodal contrastive loss to obtain the multimodal EHR feature representation.
1 code implementation • 13 Jun 2023 • Alyssa Huang, Peihan Liu, Ryumei Nakada, Linjun Zhang, Wanrong Zhang
The surge in multimodal AI's success has sparked concerns over data privacy in vision-and-language tasks.
1 code implementation • 13 Feb 2023 • Ryumei Nakada, Halil Ibrahim Gulluk, Zhun Deng, Wenlong Ji, James Zou, Linjun Zhang
We show that the algorithm can detect the ground-truth pairs and improve performance by fully exploiting unpaired datasets.
no code implementations • 6 Oct 2021 • Wenlong Ji, Zhun Deng, Ryumei Nakada, James Zou, Linjun Zhang
Contrastive learning has achieved state-of-the-art performance in various self-supervised learning tasks and even outperforms its supervised counterpart.
no code implementations • 28 Feb 2021 • Ryumei Nakada, Masaaki Imaizumi
We investigate the asymptotic risk of a general class of overparameterized likelihood models, including deep models.
no code implementations • 4 Jul 2019 • Ryumei Nakada, Masaaki Imaizumi
In this study, we prove that an intrinsic low dimensionality of covariates is the main factor that determines the performance of deep neural networks (DNNs).