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Open Set Domain Adaptation (OSDA) aims to cope with the distribution and label shifts between the source and target domains simultaneously, performing accurate classification for known classes while identifying unknown class samples in the…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Zhenbang Du , Jiayu An , Yunlu Tu , Jiahao Hong , Dongrui Wu

Transformer classifiers such as BERT deliver impressive closed-set accuracy, yet they remain brittle when confronted with inputs from unseen categories--a common scenario for deployed NLP systems. We investigate Open-Set Recognition (OSR)…

机器学习 · 计算机科学 2026-01-06 Tianshuo Yang , Ryan Rabinowitz , Terrance E. Boult , Jugal Kalita

Open World Object Detection(OWOD) addresses realistic scenarios where unseen object classes emerge, enabling detectors trained on known classes to detect unknown objects and incrementally incorporate the knowledge they provide. While…

计算机视觉与模式识别 · 计算机科学 2025-12-23 Sunoh Lee , Minsik Jeon , Jihong Min , Junwon Seo

Visual recognition tasks are often limited to dealing with a small subset of classes simply because the labels for the remaining classes are unavailable. We are interested in identifying novel concepts in a dataset through representation…

计算机视觉与模式识别 · 计算机科学 2023-03-17 Geeho Kim , Junoh Kang , Bohyung Han

How can we accurately identify new memory workloads while classifying known memory workloads? Verifying DRAM (Dynamic Random Access Memory) using various workloads is an important task to guarantee the quality of DRAM. A crucial component…

人工智能 · 计算机科学 2022-12-20 Jun-Gi Jang , Sooyeon Shim , Vladimir Egay , Jeeyong Lee , Jongmin Park , Suhyun Chae , U Kang

In this paper, we address a complex but practical scenario in semi-supervised learning (SSL) named open-set SSL, where unlabeled data contain both in-distribution (ID) and out-of-distribution (OOD) samples. Unlike previous methods that only…

计算机视觉与模式识别 · 计算机科学 2023-07-03 Ganlong Zhao , Guanbin Li , Yipeng Qin , Jinjin Zhang , Zhenhua Chai , Xiaolin Wei , Liang Lin , Yizhou Yu

We present a novel counterfactual framework for both Zero-Shot Learning (ZSL) and Open-Set Recognition (OSR), whose common challenge is generalizing to the unseen-classes by only training on the seen-classes. Our idea stems from the…

计算机视觉与模式识别 · 计算机科学 2021-03-02 Zhongqi Yue , Tan Wang , Hanwang Zhang , Qianru Sun , Xian-Sheng Hua

Deep learning has enabled remarkable advances in scene understanding, particularly in semantic segmentation tasks. Yet, current state of the art approaches are limited to a closed set of classes, and fail when facing novel elements, also…

计算机视觉与模式识别 · 计算机科学 2020-06-02 Nicolas Marchal , Charlotte Moraldo , Roland Siegwart , Hermann Blum , Cesar Cadena , Abel Gawel

Open set domain recognition has got the attention in recent years. The task aims to specifically classify each sample in the practical unlabeled target domain, which consists of all known classes in the manually labeled source domain and…

计算机视觉与模式识别 · 计算机科学 2021-05-13 Xinxing He , Yuan Yuan , Zhiyu Jiang

State-of-the-art Object Detection (OD) methods predominantly operate under a closed-world assumption, where test-time categories match those encountered during training. However, detecting and localizing unknown objects is crucial for…

计算机视觉与模式识别 · 计算机科学 2025-06-18 Daniel Montoya , Aymen Bouguerra , Alexandra Gomez-Villa , Fabio Arnez

Classic supervised learning makes the closed-world assumption, meaning that classes seen in testing must have been seen in training. However, in the dynamic world, new or unseen class examples may appear constantly. A model working in such…

计算与语言 · 计算机科学 2019-03-05 Hu Xu , Bing Liu , Lei Shu , P. Yu

Numerous algorithms have been proposed for transferring knowledge from a label-rich domain (source) to a label-scarce domain (target). Almost all of them are proposed for a closed-set scenario, where the source and the target domain…

计算机视觉与模式识别 · 计算机科学 2018-07-09 Kuniaki Saito , Shohei Yamamoto , Yoshitaka Ushiku , Tatsuya Harada

Autonomous driving (AD) operates in open-world scenarios, where encountering unknown objects is inevitable. However, standard object detectors trained on a limited number of base classes tend to ignore any unknown objects, posing potential…

计算机视觉与模式识别 · 计算机科学 2024-12-06 Lars Schmarje , Kaspar Sakman , Reinhard Koch , Dan Zhang

Existing semi-supervised learning (SSL) methods assume that labeled and unlabeled data share the same class space. However, in real-world applications, unlabeled data always contain classes not present in the labeled set, which may cause…

机器学习 · 计算机科学 2024-01-17 Wenjuan Xi , Xin Song , Weili Guo , Yang Yang

Open-set recognition (OSR), the identification of novel categories, can be a critical component when deploying classification models in real-world applications. Recent work has shown that familiarity-based scoring rules such as the Maximum…

计算机视觉与模式识别 · 计算机科学 2025-01-03 Philip Enevoldsen , Christian Gundersen , Nico Lang , Serge Belongie , Christian Igel

In recent years Deep Neural Network-based systems are not only increasing in popularity but also receive growing user trust. However, due to the closed-world assumption of such systems, they cannot recognize samples from unknown classes and…

机器学习 · 计算机科学 2025-01-15 Joanna Komorniczak , Pawel Ksieniewicz

Open set recognition (OSR) and continual learning are two critical challenges in machine learning, focusing respectively on detecting novel classes at inference time and updating models to incorporate the new classes. While many recent…

计算机视觉与模式识别 · 计算机科学 2025-08-19 Jiawen Xu , Odej Kao

Novel categories are commonly defined as those unobserved during training but present during testing. However, partially labelled training datasets can contain unlabelled training samples that belong to novel categories, meaning these can…

机器学习 · 统计学 2023-11-01 Emile R. Engelbrecht , Johan A. du Preez

Open-set recognition (OSR) aims to simultaneously detect unknown-class samples and classify known-class samples. Most of the existing OSR methods are inductive methods, which generally suffer from the domain shift problem that the learned…

计算机视觉与模式识别 · 计算机科学 2022-07-14 Jiayin Sun , Qiulei Dong

Recent advancements in deep learning have greatly enhanced 3D object recognition, but most models are limited to closed-set scenarios, unable to handle unknown samples in real-world applications. Open-set recognition (OSR) addresses this…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Jinfeng Xu , Xianzhi Li , Yuan Tang , Xu Han , Qiao Yu , Yixue Hao , Long Hu , Min Chen