Johan Barthelemy

Researcher, NVIDIA

2 papers at NeurIPS 2025

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Poster Session 2

1 paper

Wednesday, December 3, 2025 · 4:30 PM → 7:30 PM

Exhibit Hall C,D,E

RePIC: Reinforced Post-Training for Personalizing Multi-Modal Language Models

#4716 · Yeongtak Oh, Dohyun Chung, Juhyeon Shin, Sangha Park, Johan Barthelemy, Jisoo Mok, Sungroh Yoon

We propose a novel RL-based MLLM post-training framework named RePIC for the personalized image captioning task. Our method significantly outperforms SFT-based baselines on multi-concept personalized image captioning.

Poster Session 3

1 paper

Thursday, December 4, 2025 · 11:00 AM → 2:00 PM

Exhibit Hall C,D,E

Toward a Vision-Language Foundation Model for Medical Data: Multimodal Dataset and Benchmarks for Vietnamese PET/CT Report Generation

#4619 · Huu Tien Nguyen, Dac Thai Nguyen, Duc Nguyen The Minh, Trung Thanh Nguyen, Thao Nguyen Truong, Hieu Pham, Johan Barthelemy, Tran Minh Quan, Quoc Viet Hung Nguyen, Thanh Tam Nguyen, Mai Hong Son, Chau Quynh Anh, Thanh Trung Nguyen, Phi Le Nguyen