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Zhenzhen Liu

4 accepted papers

2025

Mixed Signals: A Diverse Point Cloud Dataset for Heterogeneous LiDAR V2X Collaboration

ICCV 2025poster

Vehicle-to-everything (V2X) collaborative perception has emerged as a promising solution to address the limitations of single-vehicle perception systems. However, existing V2X datasets are limited in scope, diversity, and quality. To address these gaps, we present Mixed Signals, a comprehensive V2X…

Cited by 0SourcePDFScholar
2024

DiffuBox: Refining 3D Object Detection with Point Diffusion

NeurIPS 2024poster

Ensuring robust 3D object detection and localization is crucial for many applications in robotics and autonomous driving. Recent models, however, face difficulties in maintaining high performance when applied to domains with differing sensor setups or geographic locations, often resulting in poor lo…

2023

Reward Finetuning for Faster and More Accurate Unsupervised Object Discovery

NeurIPS 2023poster

Recent advances in machine learning have shown that Reinforcement Learning from Human Feedback (RLHF) can improve machine learning models and align them with human preferences. Although very successful for Large Language Models (LLMs), these advancements have not had a comparable impact in research…

2023

Unsupervised Out-of-Distribution Detection with Diffusion Inpainting

ICML 2023poster

Unsupervised out-of-distribution detection (OOD) seeks to identify out-of-domain data by learning only from unlabeled in-domain data. We present a novel approach for this task -- Lift, Map, Detect (LMD) -- that leverages recent advancement in diffusion models. Diffusion models are one type of genera…