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Sangwon Ryu

5 accepted papers

2025

Revisiting Early Detection of Sexual Predators via Turn-level Optimization

NAACL 2025long

Online grooming is a severe social threat where sexual predators gradually entrap child victims with subtle and gradual manipulation. Therefore, timely intervention for online grooming is critical for proactive protection. However, previous methods fail to determine the optimal intervention points (…

2025

Towards Prompt Generalization: Grammar-aware Cross-Prompt Automated Essay Scoring

NAACL 2025findings

In automated essay scoring (AES), recent efforts have shifted toward cross-prompt settings that score essays on unseen prompts for practical applicability. However, prior methods trained with essay-score pairs of specific prompts pose challenges in obtaining prompt-generalized essay representation.…

2024

Autoregressive Multi-trait Essay Scoring via Reinforcement Learning with Scoring-aware Multiple Rewards

EMNLP 2024main

Recent advances in automated essay scoring (AES) have shifted towards evaluating multiple traits to provide enriched feedback. Like typical AES systems, multi-trait AES employs the quadratic weighted kappa (QWK) to measure agreement with human raters, aligning closely with the rating schema; however…

Cited by 2SourcePDFScholar
2024

Multi-Dimensional Optimization for Text Summarization via Reinforcement Learning

ACL 2024long

The evaluation of summary quality encompasses diverse dimensions such as consistency, coherence, relevance, and fluency. However, existing summarization methods often target a specific dimension, facing challenges in generating well-balanced summaries across multiple dimensions. In this paper, we pr…

Cited by 7SourcePDFScholar