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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

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

Addressing the Out-of-Distribution (OoD) segmentation task is a prerequisite for perception systems operating in an open-world environment. Large foundational models are frequently used in downstream tasks, however, their potential for OoD…

计算机视觉与模式识别 · 计算机科学 2024-09-11 Nazir Nayal , Youssef Shoeb , Fatma Güney

Detecting out-of-distribution (OOD) data is a fundamental challenge in the deployment of machine learning models. From a security standpoint, this is particularly important because OOD test data can result in misleadingly confident yet…

机器学习 · 计算机科学 2025-02-25 Onat Gungor , Amanda Sofie Rios , Nilesh Ahuja , Tajana Rosing

We revisit the likelihood ratio between a pretrained large language model (LLM) and its finetuned variant as a criterion for out-of-distribution (OOD) detection. The intuition behind such a criterion is that, the pretrained LLM has the…

计算与语言 · 计算机科学 2025-03-07 Andi Zhang , Tim Z. Xiao , Weiyang Liu , Robert Bamler , Damon Wischik

Large code datasets have become increasingly accessible for pre-training source code models. However, for the fine-tuning phase, obtaining representative training data that fully covers the code distribution for specific downstream tasks…

软件工程 · 计算机科学 2023-10-31 Hossein Hajipour , Ning Yu , Cristian-Alexandru Staicu , Mario Fritz

Spatiotemporal neural networks have shown great promise in urban scenarios by effectively capturing temporal and spatial correlations. However, urban environments are constantly evolving, and current model evaluations are often limited to…

机器学习 · 计算机科学 2024-10-10 Hongjun Wang , Jiyuan Chen , Tong Pan , Zheng Dong , Lingyu Zhang , Renhe Jiang , Xuan Song

Out-of-distribution (OoD) detection is a natural downstream task for deep generative models, due to their ability to learn the input probability distribution. There are mainly two classes of approaches for OoD detection using deep…

机器学习 · 计算机科学 2019-07-11 Yujia Huang , Sihui Dai , Tan Nguyen , Richard G. Baraniuk , Anima Anandkumar

To detect distribution shifts and improve model safety, many out-of-distribution (OOD) detection methods rely on the predictive uncertainty or features of supervised models trained on in-distribution data. In this paper, we critically…

Motivation: Deep learning models deployed for use on medical tasks can be equipped with Out-of-Distribution Detection (OoDD) methods in order to avoid erroneous predictions. However it is unclear which OoDD method should be used in…

机器学习 · 计算机科学 2020-08-06 Tianshi Cao , Chin-Wei Huang , David Yu-Tung Hui , Joseph Paul Cohen

Out-of-distribution (OOD) detection is essential for model trustworthiness which aims to sensitively identify semantic OOD samples and robustly generalize for covariate-shifted OOD samples. However, we discover that the superior OOD…

机器学习 · 计算机科学 2024-10-16 Qingyang Zhang , Qiuxuan Feng , Joey Tianyi Zhou , Yatao Bian , Qinghua Hu , Changqing Zhang

Automated plankton recognition models face significant challenges during real-world deployment due to distribution shifts (Out-of-Distribution, OoD) between training and test data. This stems from plankton's complex morphologies, vast…

计算机视觉与模式识别 · 计算机科学 2025-10-21 Yingzi Han , Jiakai He , Chuanlong Xie , Jianping Li

Deep learning has led to remarkable strides in scene understanding with panoptic segmentation emerging as a key holistic scene interpretation task. However, the performance of panoptic segmentation is severely impacted in the presence of…

计算机视觉与模式识别 · 计算机科学 2023-10-19 Rohit Mohan , Kiran Kumaraswamy , Juana Valeria Hurtado , Kürsat Petek , Abhinav Valada

Though remarkable progress has been achieved in various vision tasks, deep neural networks still suffer obvious performance degradation when tested in out-of-distribution scenarios. We argue that the feature statistics (mean and standard…

计算机视觉与模式识别 · 计算机科学 2022-04-25 Xiaotong Li , Yongxing Dai , Yixiao Ge , Jun Liu , Ying Shan , Ling-Yu Duan

Graphs are a fundamental data structure for representing relational information in domains such as social networks, molecular systems, and knowledge graphs. However, graph learning models often suffer from limited generalization when…

机器学习 · 计算机科学 2026-01-30 Haoyang Li , Haibo Chen , Xin Wang , Wenwu Zhu

Preference learning (PL) with large language models (LLMs) aims to align the LLMs' generations with human preferences. Previous work on reinforcement learning from human feedback (RLHF) has demonstrated promising results in in-distribution…

机器学习 · 计算机科学 2024-06-11 Chen Jia

Few-shot Out-of-Distribution (OOD) detection has emerged as a critical research direction in machine learning for practical deployment. Most existing Few-shot OOD detection methods suffer from insufficient generalization capability for the…

计算机视觉与模式识别 · 计算机科学 2025-08-11 Pinxuan Li , Bing Cao , Changqing Zhang , Qinghua Hu

Out-of-distribution (OOD) detection remains challenging in text-rich networks, where textual features intertwine with topological structures. Existing methods primarily address label shifts or rudimentary domain-based splits, overlooking…

计算与语言 · 计算机科学 2025-09-03 Danny Wang , Ruihong Qiu , Guangdong Bai , Zi Huang

Out-of-distribution (OOD) detection is indispensable for machine learning models deployed in the open world. Recently, the use of an auxiliary outlier dataset during training (also known as outlier exposure) has shown promising performance.…

机器学习 · 计算机科学 2022-06-29 Yifei Ming , Ying Fan , Yixuan Li

The reusability of state-of-the-art Pre-trained Language Models (PLMs) is often limited by their generalization problem, where their performance drastically decreases when evaluated on examples that differ from the training dataset, known…

计算与语言 · 计算机科学 2023-08-09 Somayeh Ghanbarzadeh , Hamid Palangi , Yan Huang , Radames Cruz Moreno , Hamed Khanpour