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Johan Barthelemy

5 accepted papers

2026

TimeOmni-VL: Unified Models for Time Series Understanding and Generation

ICML 2026poster

Recent time series modeling faces a sharp divide between numerical generation and semantic understanding, with research showing that generation models often rely on superficial pattern matching, while understanding-oriented models struggle with high-fidelity numerical output. Although unified multim…

Cited by 0SourceScholar
2025

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

NeurIPS 2025poster

Recent multi-modal large language models (MLLMs) often struggle to generate personalized image captions, even when trained on high-quality captions. In this work, we observe that such limitations persist in existing post-training-based MLLM personalization methods. Specifically, despite being post-t…

Cited by 0SourcecodeScholar
2025

ShapeX: Shapelet-Driven Post Hoc Explanations for Time Series Classification Models

NeurIPS 2025poster

Explaining time series classification models is crucial, particularly in high-stakes applications such as healthcare and finance, where transparency and trust play a critical role. Although numerous time series classification methods have identified key subsequences, known as shapelets, as core feat…

Cited by 0SourceScholar
2025

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

NeurIPS 2025poster

Vision-Language Foundation Models (VLMs), trained on large-scale multimodal datasets, have driven significant advances in Artificial Intelligence (AI) by enabling rich cross-modal reasoning. Despite their success in general domains, applying these models to medical imaging remains challenging due to…

Cited by 0SourceScholar
2025

Vox-UDA: Voxel-wise Unsupervised Domain Adaptation for Cryo-Electron Subtomogram Segmentation with Denoised Pseudo-Labeling

AAAI 2025technical

Cryo-Electron Tomography (cryo-ET) is a 3D imaging technology that facilitates the study of macromolecular structures at near-atomic resolution. Recent volumetric segmentation approaches on cryo-ET images have drawn widespread interest in the biological sector. However, existing methods heavily rely…