Search Results for author: Donghyun Na

Found 3 papers, 1 papers with code

SwitchLight: Co-design of Physics-driven Architecture and Pre-training Framework for Human Portrait Relighting

no code implementations29 Feb 2024 Hoon Kim, Minje Jang, Wonjun Yoon, Jisoo Lee, Donghyun Na, Sanghyun Woo

We introduce a co-designed approach for human portrait relighting that combines a physics-guided architecture with a pre-training framework.

Learning to Generalize to Unseen Tasks with Bilevel Optimization

no code implementations5 Aug 2019 Hayeon Lee, Donghyun Na, Hae Beom Lee, Sung Ju Hwang

To tackle this issue, we propose a simple yet effective meta-learning framework for metricbased approaches, which we refer to as learning to generalize (L2G), that explicitly constrains the learning on a sampled classification task to reduce the classification error on a randomly sampled unseen classification task with a bilevel optimization scheme.

Bilevel Optimization Classification +2

Learning to Balance: Bayesian Meta-Learning for Imbalanced and Out-of-distribution Tasks

1 code implementation ICLR 2020 Hae Beom Lee, Hayeon Lee, Donghyun Na, Saehoon Kim, Minseop Park, Eunho Yang, Sung Ju Hwang

While tasks could come with varying the number of instances and classes in realistic settings, the existing meta-learning approaches for few-shot classification assume that the number of instances per task and class is fixed.

Bayesian Inference Meta-Learning +1

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