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Out-of-distribution (OOD) detection is a critical task to ensure the reliability and security of machine learning models deployed in real-world applications. Conventional methods for OOD detection that rely on single-modal information,…

计算机视觉与模式识别 · 计算机科学 2024-03-21 K Huang , G Song , Hanwen Su , Jiyan Wang

In this work, we introduce a novel strategy for long-tail recognition that addresses the tail classes' few-shot problem via training-free knowledge transfer. Our objective is to transfer knowledge acquired from information-rich common…

计算机视觉与模式识别 · 计算机科学 2022-04-13 Sarah Parisot , Pedro M. Esperanca , Steven McDonagh , Tamas J. Madarasz , Yongxin Yang , Zhenguo Li

Deep neural networks usually perform poorly when the training dataset suffers from extreme class imbalance. Recent studies found that directly training with out-of-distribution data (i.e., open-set samples) in a semi-supervised manner would…

机器学习 · 计算机科学 2022-07-06 Hongxin Wei , Lue Tao , Renchunzi Xie , Lei Feng , Bo An

Robust out-of-distribution (OOD) detection is an indispensable component of modern artificial intelligence (AI) systems, especially in safety-critical applications where models must identify inputs from unfamiliar classes not seen during…

机器学习 · 计算机科学 2025-09-09 Tarhib Al Azad , Shahana Ibrahim

Out-of-Distribution (OOD) generalization, a cornerstone for building robust machine learning models capable of handling data diverging from the training set's distribution, is an ongoing challenge in deep learning. While significant…

机器学习 · 计算机科学 2023-12-05 Sergey Kolesnikov

Subspace clustering has gained increasing popularity in the analysis of gene expression data. Among subspace cluster models, the recently introduced order-preserving sub-matrix (OPSM) has demonstrated high promise. An OPSM, essentially a…

We propose a novel diffusion-based image generation method called the observation-guided diffusion probabilistic model (OGDM), which effectively addresses the tradeoff between quality control and fast sampling. Our approach reestablishes…

机器学习 · 计算机科学 2024-04-02 Junoh Kang , Jinyoung Choi , Sungik Choi , Bohyung Han

Systematics contaminate observables, leading to distribution shifts relative to theoretically simulated signals-posing a major challenge for using pre-trained models to label such observables. Since systematics are often poorly understood…

天体物理仪器与方法 · 物理学 2025-11-18 Sultan Hassan , Sambatra Andrianomena , Benjamin D. Wandelt

Graph generative models have been extensively studied in the data mining literature. While traditional techniques are based on generating structures that adhere to a pre-decided distribution, recent techniques have shifted towards learning…

机器学习 · 计算机科学 2020-04-09 Nikhil Goyal , Harsh Vardhan Jain , Sayan Ranu

Generative graph models struggle to scale due to the need to predict the existence or type of edges between all node pairs. To address the resulting quadratic complexity, existing scalable models often impose restrictive assumptions such as…

机器学习 · 计算机科学 2024-05-24 Yiming Qin , Clement Vignac , Pascal Frossard

Optical diffraction tomography (ODT) produces three dimensional distribution of refractive index (RI) by measuring scattering fields at various angles. Although the distribution of RI index is highly informative, due to the missing cone…

图像与视频处理 · 电气工程与系统科学 2021-07-20 Hyungjin Chung , Jaeyoung Huh , Geon Kim , Yong Keun Park , Jong Chul Ye

Long-tailed semi-supervised learning (LTSSL) presents a formidable challenge where models must overcome the scarcity of tail samples while mitigating the noise from unreliable pseudo-labels. Most prior LTSSL methods are designed to train…

机器学习 · 计算机科学 2026-04-09 Zhiyuan Huang , Jiahao Chen , Bing Su

Deep Neural Networks achieve high performance in vision tasks by learning features from regions of interest (ROI) within images, but their performance degrades when deployed on out-of-distribution (OOD) data that differs from training data.…

计算机视觉与模式识别 · 计算机科学 2026-02-24 Harry Anthony , Ziyun Liang , Hermione Warr , Konstantinos Kamnitsas

Open-world long-tailed semi-supervised learning (OLSSL) has increasingly attracted attention. However, existing OLSSL algorithms generally assume that the distributions between known and novel categories are nearly identical. Against this…

计算机视觉与模式识别 · 计算机科学 2024-05-24 Yuanpeng He , Lijian Li

3D occupancy prediction has attracted much attention in the field of autonomous driving due to its powerful geometric perception and object recognition capabilities. However, existing methods have not explored the most essential…

计算机视觉与模式识别 · 计算机科学 2025-05-30 Qiucheng Yu , Yuan Xie , Xin Tan

Recent works of opinion expression identification (OEI) rely heavily on the quality and scale of the manually-constructed training corpus, which could be extremely difficult to satisfy. Crowdsourcing is one practical solution for this…

计算与语言 · 计算机科学 2022-04-25 Xin Zhang , Guangwei Xu , Yueheng Sun , Meishan Zhang , Xiaobin Wang , Min Zhang

Facial analysis models are increasingly applied in real-world applications that have significant impact on peoples' lives. However, as literature has shown, models that automatically classify facial attributes might exhibit algorithmic…

计算机视觉与模式识别 · 计算机科学 2022-06-15 Camila Kolling , Victor Araujo , Adriano Veloso , Soraia Raupp Musse

We tackle the long-tailed visual recognition problem from the knowledge distillation perspective by proposing a Distill the Virtual Examples (DiVE) method. Specifically, by treating the predictions of a teacher model as virtual examples, we…

计算机视觉与模式识别 · 计算机科学 2021-09-21 Yin-Yin He , Jianxin Wu , Xiu-Shen Wei

Long-tailed distributions in image recognition pose a considerable challenge due to the severe imbalance between a few dominant classes with numerous examples and many minority classes with few samples. Recently, the use of large generative…

计算机视觉与模式识别 · 计算机科学 2024-08-30 Guangxi Li , Yinsheng Song , Mingkai Zheng

Existing approaches for unsupervised 3D point cloud segmentation predominantly rely on a purely visual similarity-based learning-by-clustering paradigm, which suffers from a fundamental limitation: long-tail ambiguity. In such a paradigm,…

计算机视觉与模式识别 · 计算机科学 2026-05-21 Siqi Wei , Hongbin Xu , Feng Xiao , Tian Lan , Chun Li , Ming Li , Qiuxia Wu