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相关论文: Open-World Lifelong Graph Learning

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Graph neural networks (GNNs) have emerged as the standard method for numerous tasks on graph-structured data such as node classification. However, real-world graphs are often evolving over time and even new classes may arise. We model these…

机器学习 · 计算机科学 2021-12-21 Lukas Galke , Benedikt Franke , Tobias Zielke , Ansgar Scherp

The open-world test dataset is often mixed with out-of-distribution (OOD) samples, where the deployed models will struggle to make accurate predictions. Traditional detection methods need to trade off OOD detection and in-distribution (ID)…

机器学习 · 计算机科学 2024-04-25 Xu Shen , Yili Wang , Kaixiong Zhou , Shirui Pan , Xin Wang

Out-of-distribution (OOD) detection is critical for ensuring the safety and reliability of machine learning systems, particularly in dynamic and open-world environments. In the vision and text domains, zero-shot OOD detection - which…

机器学习 · 计算机科学 2025-05-20 Haoyan Xu , Zhengtao Yao , Xuzhi Zhang , Ziyi Wang , Langzhou He , Yushun Dong , Philip S. Yu , Mengyuan Li , Yue Zhao

Graph neural networks (GNNs) have achieved impressive performance when testing and training graph data come from identical distribution. However, existing GNNs lack out-of-distribution generalization abilities so that their performance…

机器学习 · 计算机科学 2021-12-15 Haoyang Li , Xin Wang , Ziwei Zhang , Wenwu Zhu

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

Out-of-distribution (OOD) detection is an important task in machine learning systems for ensuring their reliability and safety. Deep probabilistic generative models facilitate OOD detection by estimating the likelihood of a data sample.…

机器学习 · 计算机科学 2021-06-16 Jaemoo Choi , Changyeon Yoon , Jeongwoo Bae , Myungjoo Kang

Predictive machine learning models generally excel on in-distribution data, but their performance degrades on out-of-distribution (OOD) inputs. Reliable deployment therefore requires robust OOD detection, yet this is particularly…

机器学习 · 计算机科学 2026-02-19 David Graber , Victor Armegioiu , Rebecca Buller , Siddhartha Mishra

Out-of-distribution (OOD) detection is crucial when deploying deep neural networks in the real world to ensure the reliability and safety of their applications. One main challenge in OOD detection is that neural network models often produce…

计算机视觉与模式识别 · 计算机科学 2025-10-15 Jinlun Ye , Zhuohao Sun , Yiqiao Qiu , Qiu Li , Zhijun Tan , Ruixuan Wang

Learning on graphs, where instance nodes are inter-connected, has become one of the central problems for deep learning, as relational structures are pervasive and induce data inter-dependence which hinders trivial adaptation of existing…

机器学习 · 计算机科学 2023-03-10 Qitian Wu , Yiting Chen , Chenxiao Yang , Junchi Yan

Out-of-distribution (OOD) detection is vital to safety-critical machine learning applications and has thus been extensively studied, with a plethora of methods developed in the literature. However, the field currently lacks a unified,…

Text-attributed graphs, where nodes are enriched with textual attributes, have become a powerful tool for modeling real-world networks such as citation, social, and transaction networks. However, existing methods for learning from these…

人工智能 · 计算机科学 2026-03-24 Xiaoxu Ma , Dong Li , Minglai Shao , Xintao Wu , Chen Zhao

Graph-level representation learning is important in a wide range of applications. Existing graph-level models are generally built on i.i.d. assumption for both training and testing graphs. However, in an open world, models can encounter…

机器学习 · 计算机科学 2024-07-19 Zhihao Ding , Jieming Shi , Shiqi Shen , Xuequn Shang , Jiannong Cao , Zhipeng Wang , Zhi Gong

To build safe and reliable graph machine learning systems, unsupervised graph-level anomaly detection (GLAD) and unsupervised graph-level out-of-distribution (OOD) detection (GLOD) have received significant attention in recent years. Though…

机器学习 · 计算机科学 2025-04-07 Yili Wang , Yixin Liu , Xu Shen , Chenyu Li , Kaize Ding , Rui Miao , Ying Wang , Shirui Pan , Xin Wang

Node classification on graphs is of great importance in many applications. Due to the limited labeling capability and evolution in real-world open scenarios, novel classes can emerge on unlabeled testing nodes. However, little attention has…

机器学习 · 计算机科学 2024-04-01 Yucheng Jin , Yun Xiong , Juncheng Fang , Xixi Wu , Dongxiao He , Xing Jia , Bingchen Zhao , Philip Yu

Out-of-distribution (OOD) generalization has gained increasing attentions for learning on graphs, as graph neural networks (GNNs) often exhibit performance degradation with distribution shifts. The challenge is that distribution shifts on…

机器学习 · 计算机科学 2024-08-19 Qitian Wu , Fan Nie , Chenxiao Yang , Tianyi Bao , Junchi Yan

Out-of-distribution (OOD) detection in graphs is critical for ensuring model robustness in open-world and safety-sensitive applications. Existing graph OOD detection approaches typically train an in-distribution (ID) classifier on ID data…

机器学习 · 计算机科学 2025-05-20 Haoyan Xu , Zhengtao Yao , Ziyi Wang , Zhan Cheng , Xiyang Hu , Mengyuan Li , Yue Zhao

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

By design, discriminatively trained neural network classifiers produce reliable predictions only for in-distribution samples. For their real-world deployments, detecting out-of-distribution (OOD) samples is essential. Assuming OOD to be…

机器学习 · 计算机科学 2019-10-11 Sachin Vernekar , Ashish Gaurav , Vahdat Abdelzad , Taylor Denouden , Rick Salay , Krzysztof Czarnecki

Out-of-distribution (OOD) detection is a critical task for deploying machine learning models in the open world. Distance-based methods have demonstrated promise, where testing samples are detected as OOD if they are relatively far away from…

机器学习 · 计算机科学 2022-12-09 Yiyou Sun , Yifei Ming , Xiaojin Zhu , Yixuan Li

Deep neural networks are increasingly used in a wide range of technologies and services, but remain highly susceptible to out-of-distribution (OOD) samples, that is, drawn from a different distribution than the original training set. A…

机器学习 · 计算机科学 2024-04-17 Pietro Recalcati , Fabio Garcea , Luca Piano , Fabrizio Lamberti , Lia Morra