Papers by Taehyun Lee
Who Wrote this Code? Watermarking for Code Generation (2024.acl-long)
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| Challenge: | Existing methods to detect machine-generated text by embedding watermarks fail to function appropriately in code generation tasks due to the task’s nature of having low entropy. |
| Approach: | They propose a logit-modifying watermark method which enhances detection ability and mitigates code quality degeneration by removing low-entropy segments at generating and detecting watermarks. |
| Outcome: | The proposed method outperforms baseline methods in detecting machine-generated code text while preserving code quality. |
Is a Peeled Apple Still Red? Evaluating LLMs’ Ability for Conceptual Combination with Property Type (2025.naacl-long)
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| Challenge: | Conceptual combination is a cognitive process that merges basic concepts, enabling the creation of complex expressions. |
| Approach: | They propose to use a Conceptual Combination with Property Type dataset to evaluate LLMs for conceptual combination thoroughly. |
| Outcome: | The proposed method improves performance in all generative tasks. |
TimeChara: Evaluating Point-in-Time Character Hallucination of Role-Playing Large Language Models (2024.findings-acl)
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| Challenge: | Large Language Models (LLMs) can be used to simulate human behaviors, but point-in-time role-playing is a key component of fandom role-players. |
| Approach: | They propose a benchmark to evaluate point-in-time character hallucination in role-playing LLMs. |
| Outcome: | The proposed method reduces point-in-time character hallucinations effectively by decomposing reasoning steps and using narrative experts. |