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Due to the few annotated labels of 3D point clouds, how to learn discriminative features of point clouds to segment object instances is a challenging problem. In this paper, we propose a simple yet effective 3D instance segmentation…

计算机视觉与模式识别 · 计算机科学 2022-10-12 Linghua Tang , Le Hui , Jin Xie

Person re-identification (re-ID) aims at identifying the same persons' images across different cameras. However, domain diversities between different datasets pose an evident challenge for adapting the re-ID model trained on one dataset to…

计算机视觉与模式识别 · 计算机科学 2020-01-31 Yixiao Ge , Dapeng Chen , Hongsheng Li

Person re-identification (re-ID), is a challenging task due to the high variance within identity samples and imaging conditions. Although recent advances in deep learning have achieved remarkable accuracy in settled scenes, i.e., source…

计算机视觉与模式识别 · 计算机科学 2019-12-04 Fengxiang Yang , Ke Li , Zhun Zhong , Zhiming Luo , Xing Sun , Hao Cheng , Xiaowei Guo , Feiyue Huang , Rongrong Ji , Shaozi Li

Fine-grained image classification has witnessed significant advancements with the advent of deep learning and computer vision technologies. However, the scarcity of detailed annotations remains a major challenge, especially in scenarios…

计算机视觉与模式识别 · 计算机科学 2026-05-20 Bowen Tian , Songning Lai , Lujundong Li , Zhihao Shuai , Runwei Guan , Tian Wu , Yutao Yue

Learning from positive and unlabeled data (PU learning) is prevalent in practical applications where only a couple of examples are positively labeled. Previous PU learning studies typically rely on existing samples such that the data…

机器学习 · 计算机科学 2020-04-21 Tong Wei , Feng Shi , Hai Wang , Wei-Wei Tu. Yu-Feng Li

Identifying anomalous instances in tabular data is essential for improving data reliability and maintaining system stability. Due to the scarcity of ground-truth anomaly labels, existing methods mainly rely on unsupervised anomaly detection…

人工智能 · 计算机科学 2026-04-21 Wei Huang , Yuxuan Xiong , Hezhe Qiao , Yu-Ming Shang , Xiangling Fu , Guansong Pang

The field of few-shot learning has been laboriously explored in the supervised setting, where per-class labels are available. On the other hand, the unsupervised few-shot learning setting, where no labels of any kind are required, has seen…

机器学习 · 统计学 2019-03-07 Antreas Antoniou , Amos Storkey

Annotating large-scale LiDAR point clouds for 3D semantic segmentation is costly and time-consuming, which motivates the use of semi-supervised learning (SemiSL). Standard LiDAR SemiSL methods typically adopt a two-step training paradigm,…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Bin Yang , Alexandru Paul Condurache

To alleviate human efforts from obtaining large-scale annotations, Semi-Supervised Relation Extraction methods aim to leverage unlabeled data in addition to learning from limited samples. Existing self-training methods suffer from the…

计算与语言 · 计算机科学 2021-09-13 Xuming Hu , Chenwei Zhang , Fukun Ma , Chenyao Liu , Lijie Wen , Philip S. Yu

Deep metric learning aims to learn features relying on the consistency or divergence of class labels. However, in monocular depth estimation, the absence of a natural definition of class poses challenges in the leveraging of deep metric…

计算机视觉与模式识别 · 计算机科学 2024-12-31 Chunpu Liu , Guanglei Yang , Wangmeng Zuo , Tianyi Zan

Competitive point cloud semantic segmentation results usually rely on a large amount of labeled data. However, data annotation is a time-consuming and labor-intensive task, particularly for three-dimensional point cloud data. Thus,…

计算机视觉与模式识别 · 计算机科学 2021-05-06 Puzuo Wang , Wei Yao

The combination of semi-supervised learning (SemiSL) and contrastive learning (CL) has been successful in medical image segmentation with limited annotations. However, these works often rely on pretext tasks that lack the specificity…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Zehua Cheng , Di Yuan , Thomas Lukasiewicz

Semi-supervised 3D object detection from point cloud aims to train a detector with a small number of labeled data and a large number of unlabeled data. The core of existing methods lies in how to select high-quality pseudo-labels using the…

计算机视觉与模式识别 · 计算机科学 2023-12-19 ChuXin Wang , Wenfei Yang , Tianzhu Zhang

In unsupervised adaptation for vision-language models such as CLIP, pseudo-labels derived from zero-shot predictions often exhibit significant noise, particularly under domain shifts or in visually complex scenarios. Conventional…

机器学习 · 计算机科学 2025-07-31 Eman Ali , Chetan Arora , Muhammad Haris Khan

Fine tuning self supervised pretrained models using pseudo labels can effectively improve speech recognition performance. But, low quality pseudo labels can misguide decision boundaries and degrade performance. We propose a simple yet…

声音 · 计算机科学 2022-11-01 Zezhong Jin , Dading Zhong , Xiao Song , Zhaoyi Liu , Naipeng Ye , Qingcheng Zeng

This work addresses the task of completely weakly supervised class-incremental learning for semantic segmentation to learn segmentation for both base and additional novel classes using only image-level labels. While class-incremental…

计算机视觉与模式识别 · 计算机科学 2025-05-19 David Minkwan Kim , Soeun Lee , Byeongkeun Kang

3D object detection is essential for understanding 3D scenes. Contemporary techniques often require extensive annotated training data, yet obtaining point-wise annotations for point clouds is time-consuming and laborious. Recent…

计算机视觉与模式识别 · 计算机科学 2024-08-02 Jiacheng Deng , Jiahao Lu , Tianzhu Zhang

Semi-supervised learning in automatic speech recognition (ASR) typically relies on pseudo-labeling, which often suffers from confirmation bias and error accumulation due to noisy supervision. To address this limitation, we propose ReHear, a…

计算与语言 · 计算机科学 2026-02-24 Zefang Liu , Chenyang Zhu , Sangwoo Cho , Shi-Xiong Zhang

Semi-supervised learning (SSL) has shown its effectiveness in learning effective 3D representation from a small amount of labelled data while utilizing large unlabelled data. Traditional semi-supervised approaches rely on the fundamental…

计算机视觉与模式识别 · 计算机科学 2024-09-24 Sneha Paul , Zachary Patterson , Nizar Bouguila

Recent advances in monocular 3D detection leverage a depth estimation network explicitly as an intermediate stage of the 3D detection network. Depth map approaches yield more accurate depth to objects than other methods thanks to the depth…

计算机视觉与模式识别 · 计算机科学 2022-11-01 Youngseok Kim , Sanmin Kim , Sangmin Sim , Jun Won Choi , Dongsuk Kum