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In this paper, we introduce a neural network-based method to address the high-dimensional dynamic unbalanced optimal transport (UOT) problem. Dynamic UOT focuses on the optimal transportation between two densities with unequal total mass,…

最优化与控制 · 数学 2024-09-23 Wei Wan , Jiangong Pan , Yuejin Zhang , Chenglong Bao , Zuoqiang Shi

Recently, unsupervised image-to-image translation methods based on contrastive learning have achieved state-of-the-art results in many tasks. However, in the previous works, the negatives are sampled from the input image itself, which…

计算机视觉与模式识别 · 计算机科学 2023-07-06 Chen Zhao , Wei-Ling Cai , Zheng Yuan , Cheng-Wei Hu

Face recognition models trained under the assumption of identical training and test distributions often suffer from poor generalization when faced with unknown variations, such as a novel ethnicity or unpredictable individual make-ups…

计算机视觉与模式识别 · 计算机科学 2021-03-16 Masoud Faraki , Xiang Yu , Yi-Hsuan Tsai , Yumin Suh , Manmohan Chandraker

Cross-modal retrieval aims to measure the content similarity between different types of data. The idea has been previously applied to visual, text, and speech data. In this paper, we present a novel cross-modal retrieval method specifically…

计算机视觉与模式识别 · 计算机科学 2020-05-05 Numan Khurshid , Talha Hanif , Mohbat Tharani , Murtaza Taj

In computer vision and machine learning for geographic data, out-of-domain generalization is a pervasive challenge, arising from uneven global data coverage and distribution shifts across geographic regions. Though models are frequently…

机器学习 · 计算机科学 2026-04-20 Haoran Zhang , Livia Betti , Konstantin Klemmer , Esther Rolf , David Alvarez-Melis

The goal of Universal Cross-Domain Retrieval (UCDR) is to achieve robust performance in generalized test scenarios, wherein data may belong to strictly unknown domains and categories during training. Recently, pre-trained models with prompt…

计算机视觉与模式识别 · 计算机科学 2024-03-01 Kaipeng Fang , Jingkuan Song , Lianli Gao , Pengpeng Zeng , Zhi-Qi Cheng , Xiyao Li , Heng Tao Shen

In online incremental learning, data continuously arrives with substantial distributional shifts, creating a significant challenge because previous samples have limited replay value when learning a new task. Prior research has typically…

机器学习 · 计算机科学 2026-04-17 Quyen Tran , Hai Nguyen , Hoang Phan , Quan Dao , Linh Ngo , Khoat Than , Dinh Phung , Dimitris Metaxas , Trung Le

Composed Image Retrieval (CIR) retrieves target images using a multi-modal query that combines a reference image with text describing desired modifications. The primary challenge is effectively fusing this visual and textual information.…

计算机视觉与模式识别 · 计算机科学 2025-04-16 Chaoyang Wang , Zeyu Zhang , Long Teng , Zijun Li , Shichao Kan

Histopathology is critical for the diagnosis of many diseases, including cancer. These protocols typically require pathologists to manually evaluate slides under a microscope, which is time-consuming and subjective, leading to interest in…

计算机视觉与模式识别 · 计算机科学 2023-03-07 Kianoush Falahkheirkhah , Alex Lu , David Alvarez-Melis , Grace Huynh

Learning conditional distributions $\pi^*(\cdot|x)$ is a central problem in machine learning, which is typically approached via supervised methods with paired data $(x,y) \sim \pi^*$. However, acquiring paired data samples is often…

Underwater object detection (UOD) plays a significant role in aquaculture and marine environmental protection. Considering the challenges posed by low contrast and low-light conditions in underwater environments, several underwater image…

计算机视觉与模式识别 · 计算机科学 2024-01-09 Linhui Dai , Hong Liu , Pinhao Song , Mengyuan Liu

Unsupervised anomaly detection aims to detect defective parts of a sample by having access, during training, to a set of normal, i.e. defect-free, data. It has many applications in fields, such as industrial inspection or medical imaging,…

图像与视频处理 · 电气工程与系统科学 2025-09-03 Robin Trombetta , Carole Lartizien

Salient object detection (SOD) aims to segment visually prominent regions in images and serves as a foundational task for various computer vision applications. We posit that SOD can now reach near-supervised accuracy without a single…

计算机视觉与模式识别 · 计算机科学 2025-10-21 Muhammad Umer Ramzan , Ali Zia , Abdelwahed Khamis , Noman Ali , Usman Ali , Wei Xiang

Using search engines for web image retrieval is a tempting alternative to manual curation when creating an image dataset, but their main drawback remains the proportion of incorrect (noisy) samples retrieved. These noisy samples have been…

计算机视觉与模式识别 · 计算机科学 2022-07-19 Paul Albert , Eric Arazo , Noel E. O'Connor , Kevin McGuinness

The Composed Image Retrieval (CIR) task aims to retrieve target images using a composed query consisting of a reference image and a modified text. Advanced methods often utilize contrastive learning as the optimization objective, which…

计算机视觉与模式识别 · 计算机科学 2024-08-08 Zhangchi Feng , Richong Zhang , Zhijie Nie

Unsupervised Domain Adaptation (UDA) essentially trades a model's performance on a source domain for improving its performance on a target domain. To overcome this, Unsupervised Domain Expansion (UDE) has been introduced, which adapts the…

计算机视觉与模式识别 · 计算机科学 2025-12-29 Hailan Lin , Qijie Wei , Kaibin Tian , Ruixiang Zhao , Xirong Li

Image captioning models often suffer from performance degradation when applied to novel datasets, as they are typically trained on domain-specific data. To enhance generalization in out-of-domain scenarios, retrieval-augmented approaches…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Hao Wu , Zhihang Zhong , Xiao Sun

Unsupervised image-to-image translation aims at learning a joint distribution of images in different domains by using images from the marginal distributions in individual domains. Since there exists an infinite set of joint distributions…

计算机视觉与模式识别 · 计算机科学 2018-07-24 Ming-Yu Liu , Thomas Breuel , Jan Kautz

Unbalanced optimal transport (UOT) provides a flexible way to match or compare nonnegative finite Radon measures. However, UOT requires a predefined ground transport cost, which may misrepresent the data's underlying geometry. Choosing such…

机器学习 · 统计学 2026-01-09 Emanuele Pardini , Katerina Papagiannouli

Cross-Domain Image Retrieval (CDIR) is a challenging task in computer vision, aiming to match images across different visual domains such as sketches, paintings, and photographs. Existing CDIR methods rely either on supervised learning with…

计算机视觉与模式识别 · 计算机科学 2026-04-09 Lucas Iijima , Nikolaos Giakoumoglou , Tania Stathaki