Papers by Jang Hyun Kim
Personality Vector: Modulating Personality of Large Language Models by Model Merging (2025.emnlp-main)
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| Challenge: | Existing methods to induce personality in large language models (LLMs) fail to capture the continuous nature of human traits. |
| Approach: | They propose a method for personality modulation in large language models by model merging by subtracting weights of pre-trained models from those of fine-tuned models. |
| Outcome: | The proposed method allows LLMs to exhibit desired personality traits without additional training. |
Jailbreaking Multimodal Large Language Models using Multi-Clip Video (2026.acl-long)
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| Challenge: | Existing studies show that video inputs can bypass safety alignment, yet it remains unclear which properties of video input induce this vulnerability. |
| Approach: | They propose a simple image-based defense that mitigates the vulnerability of MLLMs by analyzing video inputs. |
| Outcome: | The proposed defense leverages the relative robustness of the image modality. |