← Search

Xiankai Lu

20 accepted papers

2026

Reframing Long-Tailed Learning via Loss Landscape Geometry

CVPR 2026

Balancing performance trade-off on long-tail data distributions remains a long-standing challenge. In this paper, we posit that this dilemma stems from a phenomenon called "tail performance degradation" in continual learning (the model tends to severely overfit on head classes while quickly forgetti

Cited by 0SourcecodeScholar
2026

TSTM: Temporal Segmentation for Task-relevant Mask in Visual Reinforcement Learning Generalization

CVPR 2026

Achieving strong policy generalization to unseen environments remains a core challenge in visual reinforcement learning, and segmenting task-relevant regions to mitigate the influence of irrelevant visual cues has emerged as a promising direction. However, existing methods rely solely on the current

Cited by 0SourcecodeScholar
2025

A Conditional Probability Framework for Compositional Zero-shot Learning

ICCV 2025poster

Compositional Zero-Shot Learning (CZSL) aims to recognize unseen combinations of known objects and attributes by leveraging knowledge from previously seen compositions. Traditional approaches primarily focus on disentangling attributes and objects, treating them as independent entities during learni…

Cited by 0SourcePDFScholar
2025

CAN-ST: Clustering Adaptive Normalization for Spatio-temporal OOD Learning

IJCAI 2025

Spatio-temporal data mining is crucial for decision-making and planning in diverse domains. However, in real-world scenarios, training and testing data are often not independent or identically distributed due to rapid changes in data distributions over time and space, resulting in spatio-temporal ou

Cited by 0SourcePDFScholar
2025

Decoupled Motion Expression Video Segmentation

CVPR 2025poster

Motion expression video segmentation aims to segment objects based on input motion descriptions. Compared with traditional referring video object segmentation, it focuses on motion and multi-object expressions and is more challenging. Previous works achieved it by simply injecting text information i…

Cited by 0SourcePDFScholar
2025

LOGICZSL: Exploring Logic-induced Representation for Compositional Zero-shot Learning

CVPR 2025poster

Compositional zero-shot learning (CZSL) aims to recognize unseen attribute-object compositions by learning the primitive concepts (*i.e.*, attribute and object) from the training set. While recent works achieve impressive results in CZSL by leveraging large vision-language models like CLIP, they ign…

2025

Semantic and Sequential Alignment for Referring Video Object Segmentation

CVPR 2025poster

Referring video object segmentation (RVOS) seeks to segment the objects within a video referred by linguistic expressions. Existing RVOS solutions follow a "fuse then select" paradigm: establishing semantic correlation between visual and linguistic feature, and performing frame-level query interacti…

2025

Towards Region-Adaptive Feature Disentanglement and Enhancement for Small Object Detection

IJCAI 2025

Current feature fusion strategies often fail to adequately account for the influence of activation intensity across different scales on small object features, which impedes the effective detection of small objects. To address this limitation, we propose the Region-Adaptive Feature Disentanglement an

2023

Exposing the Self-Supervised Space-Time Correspondence Learning via Graph Kernels

AAAI 2023technical

Self-supervised space-time correspondence learning is emerging as a promising way of leveraging unlabeled video. Currently, most methods adapt contrastive learning with mining negative samples or reconstruction adapted from the image domain, which requires dense affinity across multiple frames or op…

2023

Unified 3D Segmenter As Prototypical Classifiers

NeurIPS 2023poster

The task of point cloud segmentation, comprising semantic, instance, and panoptic segmentation, has been mainly tackled by designing task-specific network architectures, which often lack the flexibility to generalize across tasks, thus resulting in a fragmented research landscape. In this paper, we…

2022

Safe-Student for Safe Deep Semi-Supervised Learning With Unseen-Class Unlabeled Data

CVPR 2022poster

Deep semi-supervised learning (SSL) methods aim to take advantage of abundant unlabeled data to improve the algorithm performance. In this paper, we consider the problem of safe SSL scenario where unseen-class instances appear in the unlabeled data. This setting is essential and commonly appears in…

Cited by 55PDFScholar
2022

Self-Filtering: A Noise-Aware Sample Selection for Label Noise with Confidence Penalization

ECCV 2022poster

"Sample selection is an effective strategy to mitigate the effect of label noise in robust learning. Typical strategies commonly apply the small-loss criterion to identify clean samples. However, those samples lying around the decision boundary with large losses usually entangle with noisy examples,…

2020

Learning Video Object Segmentation From Unlabeled Videos

CVPR 2020poster

We propose a new method for video object segmentation (VOS) that addresses object pattern learning from unlabeled videos, unlike most existing methods which rely heavily on extensive annotated data. We introduce a unified unsupervised/weakly supervised learning framework, called MuG, that comprehens…

Cited by 192PDFcodeScholar
2020

Video Object Segmentation with Episodic Graph Memory Networks

ECCV 2020poster

How to make a segmentation model efficiently adapt to a specific video as well as online target appearance variations is a fun- damental issue in the field of video object segmentation. In this work, a graph memory network is developed to address the novel idea of “learning to update the segmentatio…

2019

See More, Know More: Unsupervised Video Object Segmentation With Co-Attention Siamese Networks

CVPR 2019poster

We introduce a novel network, called as CO-attention Siamese Network (COSNet), to address the unsupervised video object segmentation task from a holistic view. We emphasize the importance of inherent correlation among video frames and incorporate a global co-attention mechanism to improve further th…

Cited by 598PDFcodeScholar
2019

Zero-Shot Video Object Segmentation via Attentive Graph Neural Networks

ICCV 2019oral

This work proposes a novel attentive graph neural network (AGNN) for zero-shot video object segmentation (ZVOS). The suggested AGNN recasts this task as a process of iterative information fusion over video graphs. Specifically, AGNN builds a fully connected graph to efficiently represent frames as n…

Cited by 353PDFcodeScholar
2018

Deep Regression Tracking with Shrinkage Loss

ECCV 2018poster

Regression trackers directly learn a mapping from regularly dense samples of target objects to soft labels, which are usually generated by a Gaussian function, to estimate target positions. Due to the potential for fast-tracking and easy implementation, regression trackers have received increasing a…