no code implementations • 16 Mar 2024 • Yeongtak Oh, Jonghyun Lee, Jooyoung Choi, Dahuin Jung, Uiwon Hwang, Sungroh Yoon
To address this, we propose a novel TTA method by leveraging a latent diffusion model (LDM) based image editing model and fine-tuning it with our newly introduced corruption modeling scheme.
1 code implementation • 16 Mar 2024 • Uiwon Hwang, Jonghyun Lee, Juhyeon Shin, Sungroh Yoon
We construct an augmentation graph in the feature space of the pretrained model using the neighbor relationships between target features and propose spectral neighborhood clustering to identify partitions in the prediction space.
no code implementations • 12 Mar 2024 • Jonghyun Lee, Dahuin Jung, Saehyung Lee, Junsung Park, Juhyeon Shin, Uiwon Hwang, Sungroh Yoon
To mitigate it, TTA methods have utilized the model output's entropy as a confidence metric that aims to determine which samples have a lower likelihood of causing error.
1 code implementation • 8 Mar 2024 • Daegyu Kim, Jooyoung Choi, Chaehun Shin, Uiwon Hwang, Sungroh Yoon
Our approach aims to approximate and integrate optimal transport into the training process, significantly enhancing the ability of diffusion models to estimate the denoiser outputs accurately.
Ranked #4 on Image Generation on CIFAR-10
no code implementations • 14 Feb 2024 • Juhyeon Shin, Jonghyun Lee, Saehyung Lee, MinJun Park, Dongjun Lee, Uiwon Hwang, Sungroh Yoon
In context of Test-time Adaptation(TTA), we propose a regularizer, dubbed Gradient Alignment with Prototype feature (GAP), which alleviates the inappropriate guidance from entropy minimization loss from misclassified pseudo label.
1 code implementation • 19 Jan 2024 • Yeongtak Oh, Saehyung Lee, Uiwon Hwang, Sungroh Yoon
Large-scale language-vision pre-training models, such as CLIP, have achieved remarkable text-guided image morphing results by leveraging several unconditional generative models.
1 code implementation • ICLR 2022 • Uiwon Hwang, Heeseung Kim, Dahuin Jung, Hyemi Jang, Hyungyu Lee, Sungroh Yoon
Generative adversarial networks (GANs) with clustered latent spaces can perform conditional generation in a completely unsupervised manner.
no code implementations • 2 Mar 2019 • Uiwon Hwang, Jaewoo Park, Hyemi Jang, Sungroh Yoon, Nam Ik Cho
Deep neural networks are widely used and exhibit excellent performance in many areas.
Ranked #2 on Adversarial Defense against FGSM Attack on MNIST
1 code implementation • 26 Feb 2019 • Uiwon Hwang, Dahuin Jung, Sungroh Yoon
We evaluate the classification performance (F1-score) of the proposed method with 20% missingness and confirm up to a 5% improvement in comparison with the performance of combinations of state-of-the-art methods.
no code implementations • 28 May 2018 • Heonseok Ha, Uiwon Hwang, Yongjun Hong, Jahee Jang, Sungroh Yoon
Knowledge tracing (KT), a key component of an intelligent tutoring system, is a machine learning technique that estimates the mastery level of a student based on his/her past performance.
no code implementations • 17 Jan 2018 • Sungwoon Choi, Heonseok Ha, Uiwon Hwang, Chanju Kim, Jung-Woo Ha, Sungroh Yoon
A recommender system aims to recommend items that a user is interested in among many items.
no code implementations • 16 Nov 2017 • Yongjun Hong, Uiwon Hwang, Jaeyoon Yoo, Sungroh Yoon
Generative Adversarial Networks (GAN) have received wide attention in the machine learning field for their potential to learn high-dimensional, complex real data distribution.
no code implementations • 11 Nov 2017 • Uiwon Hwang, Sungwoon Choi, Han-Byoel Lee, Sungroh Yoon
Electronic health records (EHRs) have contributed to the computerization of patient records and can thus be used not only for efficient and systematic medical services, but also for research on biomedical data science.
1 code implementation • 31 Oct 2017 • Sang-gil Lee, Uiwon Hwang, Seonwoo Min, Sungroh Yoon
We propose an application of sequence generative adversarial networks (SeqGAN), which are generative adversarial networks for discrete sequence generation, for creating polyphonic musical sequences.
Sound Audio and Speech Processing