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Tien-Phat Nguyen

3 accepted papers

2026

TokenRatio: Principled Token-Level Preference Optimization via Ratio Matching

ICML 2026poster

Direct Preference Optimization (DPO) is a widely used RL-free method for aligning language models from pairwise preferences, but it models preferences over full sequences even though generation is driven by per-token decisions. Existing token-level extensions typically decompose a sequence-level Bra…

Cited by 0SourceScholar
2025

CT-ScanGaze: A Dataset and Baselines for 3D Volumetric Scanpath Modeling

ICCV 2025poster

Understanding radiologists' eye movement during Computed Tomography (CT) reading is crucial for developing effective interpretable computer-aided diagnosis systems. However, CT research in this area has been limited by the lack of publicly available eye-tracking datasets and the three-dimensional co…

2024

Z-GMOT: Zero-shot Generic Multiple Object Tracking

NAACL 2024findings

Despite recent significant progress, Multi-Object Tracking (MOT) faces limitations such as reliance on prior knowledge and predefined categories and struggles with unseen objects. To address these issues, Generic Multiple Object Tracking (GMOT) has emerged as an alternative approach, requiring less…