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Detecting Out-of-distribution (OOD) inputs have been a critical issue for neural networks in the open world. However, the unstable behavior of OOD detection along the optimization trajectory during training has not been explored clearly. In…

机器学习 · 计算机科学 2023-03-03 Zhen Cheng , Fei Zhu , Xu-Yao Zhang , Cheng-Lin Liu

Online Surgical Phase Recognition (SPR) models can reach high frame-wise accuracy, yet their predictions often lack temporal stability, fragmenting workflow understanding and reducing the reliability of downstream assistance. We show that…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Yang Liu , Ning Zhu , Jingjing Peng , Xiwu Chen , Alejandro Granados , Guotai Wang , Sebastien Ourselin

Substantial progress has been made in various techniques for open-world recognition. Out-of-distribution (OOD) detection methods can effectively distinguish between known and unknown classes in the data, while incremental learning enables…

计算机视觉与模式识别 · 计算机科学 2025-08-12 Xiang Xiang , Qinhao Zhou , Zhuo Xu , Jing Ma , Jiaxin Dai , Yifan Liang , Hanlin Li

Real-world data sets often exhibit temporal dynamics characterized by evolving data distributions. Disregarding this phenomenon, commonly referred to as concept drift, can significantly diminish a model's predictive accuracy. Furthermore,…

机器学习 · 计算机科学 2025-12-16 Mohammad Abu Shaira , Yunhe Feng , Heng Fan , Weishi Shi

Most continual learning methods are validated in settings where task boundaries are clearly defined and task identity information is available during training and testing. We explore how such methods perform in a task-agnostic setting that…

计算机视觉与模式识别 · 计算机科学 2022-08-08 Camila Gonzalez , Amin Ranem , Ahmed Othman , Anirban Mukhopadhyay

Detecting and rejecting unknown out-of-distribution (OOD) samples is critical for deployed neural networks to void unreliable predictions. In real-world scenarios, however, the efficacy of existing OOD detection methods is often impeded by…

计算机视觉与模式识别 · 计算机科学 2024-11-01 Kai Liu , Zhihang Fu , Sheng Jin , Chao Chen , Ze Chen , Rongxin Jiang , Fan Zhou , Yaowu Chen , Jieping Ye

Transformers excel in natural language processing and computer vision tasks. However, they still face challenges in generalizing to Out-of-Distribution (OOD) datasets, i.e. data whose distribution differs from that seen during training. OOD…

机器学习 · 计算机科学 2026-01-30 Yijin Zhou , Yutang Ge , Wenyuan Xie , Linqian Zeng , Xiaowen Dong , Yuguang Wang

Fault detection is essential in complex industrial systems to prevent failures and optimize performance by distinguishing abnormal from normal operating conditions. With the growing availability of condition monitoring data, data-driven…

应用统计 · 统计学 2025-10-14 Han Sun , Olga Fink

In recent years, research on out-of-distribution (OoD) detection for semantic segmentation has mainly focused on road scenes -- a domain with a constrained amount of semantic diversity. In this work, we challenge this constraint and extend…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Silvio Galesso , Philipp Schröppel , Hssan Driss , Thomas Brox

Machine learning algorithms typically assume that the training and test samples come from the same distributions, i.e., in-distribution. However, in open-world scenarios, streaming big data can be Out-Of-Distribution (OOD), rendering these…

机器学习 · 计算机科学 2022-11-10 Anique Tahir , Lu Cheng , Ruocheng Guo , Huan Liu

In the transformative landscape of smart cities, the integration of the cutting-edge web technologies into time series forecasting presents a pivotal opportunity to enhance urban planning, sustainability, and economic growth. The…

机器学习 · 计算机科学 2024-05-10 Ziyi Zhang , Shaogang Ren , Xiaoning Qian , Nick Duffield

Out-of-distribution (OOD) detection is essential for determining when a supervised model encounters inputs that differ meaningfully from its training distribution. While widely studied in classification, OOD detection for regression and…

机器学习 · 统计学 2025-12-16 Min Lu , Hemant Ishwaran

Generalization to out-of-distribution (OOD) data is a capability natural to humans yet challenging for machines to reproduce. This is because most learning algorithms strongly rely on the i.i.d.~assumption on source/target data, which is…

机器学习 · 计算机科学 2022-08-15 Kaiyang Zhou , Ziwei Liu , Yu Qiao , Tao Xiang , Chen Change Loy

Robust fine-tuning aims to achieve competitive in-distribution (ID) performance while maintaining the out-of-distribution (OOD) robustness of a pre-trained model when transferring it to a downstream task. To remedy this, most robust…

机器学习 · 计算机科学 2025-09-09 Xiang Yuan , Jun Shu , Deyu meng , Zongben Xu

Tropical Cyclone (TC) estimation aims to accurately estimate various TC attributes in real time. However, distribution shifts arising from the complex and dynamic nature of TC environmental fields, such as varying geographical conditions…

机器学习 · 计算机科学 2025-11-18 Hanting Yan , Pan Mu , Shiqi Zhang , Yuchao Zhu , Jinglin Zhang , Cong Bai

In many real-world settings--e.g., single-cell RNA sequencing, mobility sensing, and environmental monitoring--data are observed only as temporally aggregated snapshots collected over finite time windows, often with noisy or uncertain…

机器学习 · 计算机科学 2026-05-25 Keisuke Kawano , Takuro Kutsuna , Naoki Hayashi , Yasushi Esaki , Hidenori Tanaka

With tremendous growing interests in Big Data systems, analyzing and facilitating their performance improvement become increasingly important. Although there have much research efforts for improving Big Data systems performance, efficiently…

分布式、并行与集群计算 · 计算机科学 2017-11-22 Rui Ren , Jiechao Cheng , Xiwen He , Lei Wang , Chunjie Luo , Jianfeng Zhan

Traditional test-time training (TTT) methods, while addressing domain shifts, often assume a consistent class set, limiting their applicability in real-world scenarios characterized by infinite variety. Open-World Test-Time Training (OWTTT)…

机器学习 · 计算机科学 2024-09-17 Houcheng Su , Mengzhu Wang , Jiao Li , Bingli Wang , Daixian Liu , Zeheng Wang

Modern manufacturing relies heavily on fusion welding processes, including gas metal arc welding (GMAW). Despite significant advances in machine learning-based quality prediction, current models exhibit critical limitations when confronted…

机器学习 · 计算机科学 2026-02-18 Yannik Hahn , Jan Voets , Antonin Koenigsfeld , Hasan Tercan , Tobias Meisen

In many real-world settings, machine learning models need to identify user inputs that are out-of-domain (OOD) so as to avoid performing wrong actions. This work focuses on a challenging case of OOD detection, where no labels for in-domain…

计算与语言 · 计算机科学 2022-03-23 Di Jin , Shuyang Gao , Seokhwan Kim , Yang Liu , Dilek Hakkani-Tur