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Eunki Kim

6 accepted papers

2026

Real-Time Long Horizon Air Quality Forecasting via Group-Relative Policy Optimization

CVPR 2026

Accurate long horizon forecasting of particulate matter (PM) concentration fields is essential for operational public health decisions. However, achieving reliable forecasts remains challenging in regions with complex terrain and strong atmospheric dynamics such as East Asia. While foundation models

Cited by 0SourcecodeScholar
2025

AlphaPO: Reward Shape Matters for LLM Alignment

ICML 2025poster

Reinforcement Learning with Human Feedback (RLHF) and its variants have made huge strides toward the effective alignment of large language models (LLMs) to follow instructions and reflect human values. More recently, Direct Alignment Algorithms (DAAs) have emerged in which the reward modeling stage…

Cited by 0SourcePDFScholar
2025

I0T: Embedding Standardization Method Towards Zero Modality Gap

ACL 2025long

Contrastive Language-Image Pretraining (CLIP) enables zero-shot inference in downstream tasks such as image-text retrieval and classification. However, recent works extending CLIP suffer from the issue of *modality gap*, which arises when the image and text embeddings are projected to disparate mani…

2025

On the Robustness of Reward Models for Language Model Alignment

ICML 2025poster

The Bradley-Terry (BT) model is widely practiced in reward modeling for reinforcement learning with human feedback (RLHF). Despite its effectiveness, reward models (RMs) trained with BT model loss as one-way classifiers are prone to over-optimization, losing generalizability to unseen inputs. In thi…

Cited by 0SourcePDFScholar
2025

Sightation Counts: Leveraging Sighted User Feedback in Building a BLV-aligned Dataset of Diagram Descriptions

ACL 2025long

Often, the needs and visual abilities differ between the annotator group and the end user group. Generating detailed diagram descriptions for blind and low-vision (BLV) users is one such challenging domain. Sighted annotators could describe visuals with ease, but existing studies have shown that dir…

Cited by 0SourcePDFScholar