← Search

Junhee Cho

4 accepted papers

2026

On Training Large Language Models for Long-Horizon Tasks: An Empirical Study of Horizon Length

ICML 2026poster

Large language models (LLMs) have shown promise as interactive agents that solve tasks through extended sequences of environment interactions. While prior work has primarily focused on system-level optimizations or algorithmic improvements, the role of task horizon length in shaping training dynamic…

Cited by 0SourceScholar
2025

Watermarking for Factuality: Guiding Vision-Language Models Toward Truth via Tri-layer Contrastive Decoding

EMNLP 2025

Large Vision-Language Models (LVLMs) have recently shown promising results on various multimodal tasks, even achieving human-comparable performance in certain cases. Nevertheless, LVLMs remain prone to hallucinations–they often rely heavily on a single modality or memorize training data without prop

Cited by 0SourcePDFScholar
2025

Web-Shepherd: Advancing PRMs for Reinforcing Web Agents

NeurIPS 2025spotlight

Web navigation is a unique domain that can automate many repetitive real-life tasks and is challenging as it requires long-horizon sequential decision making beyond typical multimodal large language model (MLLM) tasks. Yet, specialized reward models for web navigation that can be utilized during bot…

Cited by 0SourcecodeScholar
2023

Towards standardizing Korean Grammatical Error Correction: Datasets and Annotation

ACL 2023long

Research on Korean grammatical error correction (GEC) is limited, compared to other major languages such as English. We attribute this problematic circumstance to the lack of a carefully designed evaluation benchmark for Korean GEC. In this work, we collect three datasets from different sources (Kor…