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Sungeun Hong

9 accepted papers

2026

Hyper-STTN: Hypergraph Augmented Spatial-Temporal Transformer for Trajectory Prediction

ICRA 2026poster

Predicting crowd intentions and trajectories is critical for a range of real-world applications, involving social robotics and autonomous driving. Accurately modeling such behavior remains challenging due to the complexity of pairwise spatial-temporal interactions and the heterogeneous influence of …

Cited by 0Scholar
2026

SyMerge: From Non-Interference to Synergistic Merging via Single-Layer Adaptation

ICML 2026poster

Model merging combines independently trained models into a single multi-task model. However, most existing approaches focus primarily on avoiding task interference. We argue that its greater potential lies in enabling task synergy, where tasks actively improve one another. We identify cross-task per…

Cited by 0SourceScholar
2026

ZOO-Prune: Training-Free Token Pruning via Zeroth-Order Gradient Estimation in Vision-Language Models

CVPR 2026

Large Vision-Language Models (VLMs) enable strong multimodal reasoning but incur heavy inference costs from redundant visual tokens. Token pruning alleviates this issue, yet existing approaches face limitations. Attention-based methods rely on raw attention scores, which are often unstable across la

Cited by 0SourcecodeScholar
2025

Backpropagation-Free Test-Time Adaptation via Probabilistic Gaussian Alignment

NeurIPS 2025poster

Test-time adaptation (TTA) enhances the zero-shot robustness under distribution shifts by leveraging unlabeled test data during inference. Despite notable advances, several challenges still limit its broader applicability. First, most methods rely on backpropagation or iterative optimization, which…

Cited by 0SourceScholar
2025

DisCoRD: Discrete Tokens to Continuous Motion via Rectified Flow Decoding

ICCV 2025poster

Human motion is inherently continuous and dynamic, posing significant challenges for generative models. While discrete generation methods are widely used, they suffer from limited expressiveness and frame-wise noise artifacts. In contrast, continuous approaches produce smoother, more natural motion…

Cited by 0SourcePDFScholar
2025

PRIMT: Preference-based Reinforcement Learning with Multimodal Feedback and Trajectory Synthesis from Foundation Models

NeurIPS 2025oral

Preference-based reinforcement learning (PbRL) has emerged as a promising paradigm for teaching robots complex behaviors without reward engineering. However, its effectiveness is often limited by two critical challenges: the reliance on extensive human input and the inherent difficulties in resolvin…

Cited by 0SourcecodeScholar
2025

Question-Aware Gaussian Experts for Audio-Visual Question Answering

CVPR 2025highlight

Audio-Visual Question Answering (AVQA) requires not only question-based multimodal reasoning but also precise temporal grounding to capture subtle dynamics for accurate prediction. However, existing methods mainly use question information implicitly, limiting focus on question-specific details. Furt…

2025

Task Vector Quantization for Memory-Efficient Model Merging

ICCV 2025poster

Model merging enables efficient multi-task models by combining task-specific fine-tuned checkpoints. However, storing multiple task-specific checkpoints requires significant memory, limiting scalability and restricting model merging to larger models and diverse tasks. In this paper, we propose quant…