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Junchen Fu

2 papers indexed

arxivcs.CLcs.AIcs.LG2026-07-23

The Geometry of Personality: Activation Steering with Jungian Cognitive Functions

Liu Zai, Yumeng Wang, Junchen Fu, Joemon M. Jose

Activation steering enables control and interpretation of LLMs, yet existing work primarily models personality through static trait frameworks such as the Big Five. We investigate whether personality can instead be represented and controlled as a set of cognitive processes using…

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arxivcs.AIcs.CLcs.CVcs.MM2026-07-14

Do We Really Need Multimodal Emotion Language Models Larger Than 1B Parameters?

Kaiwen Zheng, Junchen Fu, Wenhao Deng, Hu Han, Joemon M. Jose, Xuri Ge

Recent advances in multimodal large language models (MLLMs) have significantly improved the performance of multimodal emotion recognition (MER) and enabled interpretable description generation by jointly modeling video, audio, and language, etc. However, these performance improve…

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