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Sungjun Lim

8 accepted papers

2026

Semi-Supervised Preference Optimization with Limited Feedback

ICLR 2026oral

The field of preference optimization has made outstanding contributions to the alignment of language models with human preferences. Despite these advancements, recent methods still rely heavily on substantial paired (labeled) feedback data, leading to substantial resource expenditures. To address th…

Cited by 0SourcecodeScholar
2025

Brain-inspired $L_p$-Convolution benefits large kernels and aligns better with visual cortex

ICLR 2025poster

Convolutional Neural Networks (CNNs) have profoundly influenced the field of computer vision, drawing significant inspiration from the visual processing mechanisms inherent in the brain. Despite sharing fundamental structural and representational similarities with the biological visual system, diffe…

Cited by 0SourcePDFScholar
2025

Flat Posterior Does Matter For Bayesian Model Averaging

UAI 2025

Bayesian neural networks (BNNs) estimate the posterior distribution of model parameters and utilize posterior samples for Bayesian Model Averaging (BMA) in prediction. However, despite the crucial role of flatness in the loss landscape in improving the generalization of neural networks, its impact o

2025

Sufficient Invariant Learning for Distribution Shift

CVPR 2025poster

Learning robust models under distribution shifts between training and test datasets is a fundamental challenge in machine learning. While learning invariant features across environments is a popular approach, it often assumes that these features are fully observed in both training and test sets--a c…

2024

Dictionary Contrastive Learning for Efficient Local Supervision without Auxiliary Networks

ICLR 2024spotlight

While backpropagation (BP) has achieved widespread success in deep learning, it faces two prominent challenges: computational inefficiency and biological implausibility. In response to these challenges, local supervision, encompassing Local Learning (LL) and Forward Learning (FL), has emerged as a p…

Cited by 0SourcePDFScholar