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Shizhen Zhao

10 accepted papers

2026

ASSIST-3D: Adapted Scene Synthesis for Class-Agnostic 3D Instance Segmentation

AAAI 2026technical

Class-agnostic 3D instance segmentation tackles the challenging task of segmenting all object instances, including previously unseen ones, without semantic class reliance. Current methods struggle with generalization due to the scarce annotated 3D scene data or noisy 2D segmentations. While syntheti

Cited by 0SourcePDFScholar
2026

Dynamic Important Example Mining for Reinforcement Finetuning

CVPR 2026

Reinforcement fine-tuning (RFT) is increasingly used to strengthen the reasoning abilities of large models, yet its effectiveness is bound by how training data are selected and used. Most data-centric RFT methods rely on static or heuristic sample selection, implicitly assuming a sample's value is f

Cited by 0SourcecodeScholar
2025

Aligning Effective Tokens with Video Anomaly in Large Language Models

ICCV 2025poster

Understanding abnormal events in videos is a vital and challenging task that has garnered significant attention in a wide range of applications. Although current video understanding Multi-modal Large Language Models (MLLMs) are capable of analyzing general videos, they often struggle to handle anoma…

Cited by 0SourcePDFScholar
2025

Equipping Vision Foundation Model with Mixture of Experts for Out-of-Distribution Detection

ICCV 2025poster

Pre-trained vision foundation models have transformed many computer vision tasks. Despite their strong ability to learn discriminative and generalizable features crucial for out-of-distribution (OOD) detection, their impact on this task remains underexplored. Motivated by this gap, we systematically…

Cited by 0SourcePDFScholar
2025

Learning from Neighbors: Category Extrapolation for Long-Tail Learning

CVPR 2025poster

Balancing training on long-tail data distributions remains a long-standing challenge in deep learning. While methods such as re-weighting and re-sampling help alleviate the imbalance issue, limited sample diversity continues to hinder models from learning robust and generalizable feature representat…

Cited by 0SourcePDFScholar
2024

Can OOD Object Detectors Learn from Foundation Models?

ECCV 2024poster

"Out-of-distribution (OOD) object detection is a challenging task due to the absence of open-set OOD data. Inspired by recent advancements in text-to-image generative models, such as Stable Diffusion, we study the potential of generative models trained on large-scale open-set data to synthesize OOD…

2021

Weakly Supervised Text-Based Person Re-Identification

ICCV 2021poster

The conventional text-based person re-identification methods heavily rely on identity annotations. However, this labeling process is costly and time-consuming. In this paper, we consider a more practical setting called weakly supervised text-based person re-identification, where only the text-image…

Cited by 40PDFcodeScholar
2020

Do Not Disturb Me: Person Re-identification Under the Interference of Other Pedestrians

ECCV 2020poster

In the conventional person Re-ID setting, it is assumed that cropped images are the person images within the bounding box for each individual. However, in a crowded scene, off-shelf-detectors may generate bounding boxes involving multiple people, where the large proportion of background pedestrians…