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Semi-supervised learning (SSL) leverages limited labeled and abundant unlabeled data but often faces challenges with data imbalance, especially in 3D contexts. This study investigates class-level confidence as an indicator of learning…

计算机视觉与模式识别 · 计算机科学 2024-11-14 Zhimin Chen , Bing Li

Identifying out-of-distribution (OOD) data at inference time is crucial for many machine learning applications, especially for automation. We present a novel unsupervised semi-parametric framework COMBOOD for OOD detection with respect to…

计算机视觉与模式识别 · 计算机科学 2026-02-10 Magesh Rajasekaran , Md Saiful Islam Sajol , Frej Berglind , Supratik Mukhopadhyay , Kamalika Das

Despite the success of deep neural networks in medical image classification, the problem remains challenging as data annotation is time-consuming, and the class distribution is imbalanced due to the relative scarcity of diseases. To address…

计算机视觉与模式识别 · 计算机科学 2023-08-01 Zhongzheng Huang , Jiawei Wu , Tao Wang , Zuoyong Li , Anastasia Ioannou

Deep learning techniques have greatly enhanced the performance of fire detection in videos. However, video-based fire detection models heavily rely on labeled data, and the process of data labeling is particularly costly and time-consuming,…

计算机视觉与模式识别 · 计算机科学 2023-11-10 Qinghua Lin , Zuoyong Li , Kun Zeng , Haoyi Fan , Wei Li , Xiaoguang Zhou

Semi-supervised learning provides an expressive framework for exploiting unlabeled data when labels are insufficient. Previous semi-supervised learning methods typically match model predictions of different data-augmented views in a…

计算机视觉与模式识别 · 计算机科学 2023-10-26 Cong Wang , Xiaofeng Cao , Lanzhe Guo2 , Zenglin Shi

Multimodal fusion breaks through the boundaries between diverse modalities and has already achieved notable performances. However, in many specialized fields, it is struggling to obtain sufficient alignment data for training, which…

机器学习 · 计算机科学 2024-09-24 Zijia Song , Zelin Zang , Yelin Wang , Guozheng Yang , Kaicheng yu , Wanyu Chen , Miaoyu Wang , Stan Z. Li

Real-world machine learning applications often face simultaneous covariate and semantic shifts, challenging traditional domain generalization and out-of-distribution (OOD) detection methods. We introduce Meta-learned Across Domain…

机器学习 · 计算机科学 2024-11-06 Haoliang Wang , Chen Zhao , Feng Chen

Many safety and alignment failures of large language models (LLMs) occur due to out-of-distribution (OOD) situations: unusual prompt or response patterns that are unforeseen by model developers. We systematically study whether LLM…

人工智能 · 计算机科学 2026-05-26 Dylan Feng , Pragya Srivastava , Anca Dragan , Cassidy Laidlaw

Detecting out-of-distribution (OOD) data is crucial in machine learning applications to mitigate the risk of model overconfidence, thereby enhancing the reliability and safety of deployed systems. The majority of existing OOD detection…

人工智能 · 计算机科学 2024-08-22 Christos Constantinou , Georgios Ioannides , Aman Chadha , Aaron Elkins , Edwin Simpson

Semi-supervised learning approaches have emerged as an active area of research to combat the challenge of obtaining large amounts of annotated data. Towards the goal of improving the performance of semi-supervised learning methods, we…

计算机视觉与模式识别 · 计算机科学 2021-12-22 Ashima Garg , Shaurya Bagga , Yashvardhan Singh , Saket Anand

In semantic segmentation, the creation of pixel-level labels for training data incurs significant costs. To address this problem, semi-supervised learning, which utilizes a small number of labeled images alongside unlabeled images to…

计算机视觉与模式识别 · 计算机科学 2026-04-09 Takahiro Mano , Reiji Saito , Kazuhiro Hotta

Purpose: Deep learning methods have shown promising results in the segmentation, and detection of diseases in medical images. However, most methods are trained and tested on data from a single source, modality, organ, or disease type,…

图像与视频处理 · 电气工程与系统科学 2025-08-20 Nchongmaje Ndipenocha , Alina Mirona , Kezhi Wanga , Yongmin Li

Multi-label Out-Of-Distribution (OOD) detection aims to discriminate the OOD samples from the multi-label In-Distribution (ID) ones. Compared with its multiclass counterpart, it is crucial to model the joint information among classes. To…

计算机视觉与模式识别 · 计算机科学 2024-12-24 Yuchen Sun , Qianqian Xu , Zitai Wang , Zhiyong Yang , Junwei He

As deep learning methods form a critical part in commercially important applications such as autonomous driving and medical diagnostics, it is important to reliably detect out-of-distribution (OOD) inputs while employing these algorithms.…

机器学习 · 计算机科学 2018-09-12 Apoorv Vyas , Nataraj Jammalamadaka , Xia Zhu , Dipankar Das , Bharat Kaul , Theodore L. Willke

We introduce MarginMatch, a new SSL approach combining consistency regularization and pseudo-labeling, with its main novelty arising from the use of unlabeled data training dynamics to measure pseudo-label quality. Instead of using only the…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Tiberiu Sosea , Cornelia Caragea

Current advances in next generation sequencing techniques have allowed researchers to conduct comprehensive research on microbiome and human diseases, with recent studies identifying associations between human microbiome and health outcomes…

统计方法学 · 统计学 2021-06-09 Konstantin Shestopaloff , Mei Dong , Fan Gao , Wei Xu

Semantically coherent out-of-distribution detection (SCOOD) is a recently proposed realistic OOD detection setting: given labeled in-distribution (ID) data and mixed in-distribution and out-of-distribution unlabeled data as the training…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Zhimao Peng , Enguang Wang , Xialei Liu , Ming-Ming Cheng

Semi-supervised Learning (SSL) has witnessed great success owing to the impressive performances brought by various methods based on pseudo labeling and consistency regularization. However, we argue that existing methods might fail to…

When applying deep learning models in open-world scenarios, active learning (AL) strategies are crucial for identifying label candidates from a nearly infinite amount of unlabeled data. In this context, robust out-of-distribution (OOD)…

计算机视觉与模式识别 · 计算机科学 2025-10-14 Sebastian Schmidt , Leonard Schenk , Leo Schwinn , Stephan Günnemann

Supervised contrastive learning has achieved remarkable success by leveraging label information; however, determining positive samples in multi-label scenarios remains a critical challenge. In multi-label supervised contrastive learning…

机器学习 · 计算机科学 2025-09-30 Guangming Huang , Yunfei Long , Cunjin Luo