Sehyun Kim
Author directory2026
SCR-Eval: Evaluating Video Subtitle Translation with a Script-like Context Representation
Jongin Lee | Juyi Hwang | Sehyun Kim
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing: Industry Track
Jongin Lee | Juyi Hwang | Sehyun Kim
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing: Industry Track
The quality of video subtitle translation cannot be assessed from sentence-level semantic equivalence alone. Subtitles are governed by audiovisual cues, speaker relationships, and narrative context that accumulates across scenes, yet existing automatic metrics and text-centric LLM-based evaluation do not reflect these factors.
We propose SCR-Eval, a context-aware evaluation framework for video subtitle translation, built on a Script-like Context Representation (SCR) reconstructed from the video. The evaluator aligns the translated subtitles to the SCR’s semantic scenes, then performs MQM error analysis with an LLM judge.
On three open movies, we benchmark five English-to-Korean subtitle providers against blind, randomized annotations by seven professional evaluators. The framework’s provider ranking agrees strongly with the experts (system-level Spearman ρ = 0.967). In ablations, agreement weakens stepwise from full context through scene-bounded text to isolated source–translation pairs. Automatic baselines agree less: MetricX and xCOMET correlate negatively with the expert ranking, while RUBRIC-MQM correlates only weakly.
With full context, SCR-Eval shows substantially stronger agreement with experts than these baselines.
We propose SCR-Eval, a context-aware evaluation framework for video subtitle translation, built on a Script-like Context Representation (SCR) reconstructed from the video. The evaluator aligns the translated subtitles to the SCR’s semantic scenes, then performs MQM error analysis with an LLM judge.
On three open movies, we benchmark five English-to-Korean subtitle providers against blind, randomized annotations by seven professional evaluators. The framework’s provider ranking agrees strongly with the experts (system-level Spearman ρ = 0.967). In ablations, agreement weakens stepwise from full context through scene-bounded text to isolated source–translation pairs. Automatic baselines agree less: MetricX and xCOMET correlate negatively with the expert ranking, while RUBRIC-MQM correlates only weakly.
With full context, SCR-Eval shows substantially stronger agreement with experts than these baselines.
2025
Leveraging LLM-Generated Schema Descriptions for Unanswerable Question Detection in Clinical Data
Donghee Han | Seungjae Lim | Daeyoung Roh | Sangryul Kim | Sehyun Kim | Mun Yong Yi
Proceedings of the 31st International Conference on Computational Linguistics
Donghee Han | Seungjae Lim | Daeyoung Roh | Sangryul Kim | Sehyun Kim | Mun Yong Yi
Proceedings of the 31st International Conference on Computational Linguistics
Recent advancements in large language models (LLMs) have boosted research on generating SQL queries from domain-specific questions, particularly in the medical domain. A key challenge is detecting and filtering unanswerable questions. Existing methods often relying on model uncertainty, but these require extra resources and lack interpretability. We propose a lightweight model that predicts relevant database schemas to detect unanswerable questions, enhancing interpretability and addressing the data imbalance in binary classification tasks. Furthermore, we found that LLM-generated schema descriptions can significantly enhance the prediction accuracy. Our method provides a resource-efficient solution for unanswerable question detection in domain-specific question answering systems.
2024
ProbGate at EHRSQL 2024: Enhancing SQL Query Generation Accuracy through Probabilistic Threshold Filtering and Error Handling
Sangryul Kim | Donghee Han | Sehyun Kim
Proceedings of the 6th Clinical Natural Language Processing Workshop
Sangryul Kim | Donghee Han | Sehyun Kim
Proceedings of the 6th Clinical Natural Language Processing Workshop
Recently, deep learning-based language models have significantly enhanced text-to-SQL tasks, with promising applications in retrieving patient records within the medical domain. One notable challenge in such applications is discerning unanswerable queries. Through fine-tuning model, we demonstrate the feasibility of converting medical record inquiries into SQL queries. Additionally, we introduce an entropy-based method to identify and filter out unanswerable results. We further enhance result quality by filtering low-confidence SQL through log probability-based distribution, while grammatical and schema errors are mitigated by executing queries on the actual database.We experimentally verified that our method can filter unanswerable questions, which can be widely utilized even when the parameters of the model are not accessible, and that it can be effectively utilized in practice.