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Given unlabelled datasets containing both old and new categories, generalized category discovery (GCD) aims to accurately discover new classes while correctly classifying old classes. Current GCD methods only use a single visual modality of…

计算机视觉与模式识别 · 计算机科学 2025-03-24 Enguang Wang , Zhimao Peng , Zhengyuan Xie , Fei Yang , Xialei Liu , Ming-Ming Cheng

We introduce a Parametric Information Maximization (PIM) model for the Generalized Category Discovery (GCD) problem. Specifically, we propose a bi-level optimization formulation, which explores a parameterized family of objective functions,…

计算机视觉与模式识别 · 计算机科学 2023-07-17 Florent Chiaroni , Jose Dolz , Ziko Imtiaz Masud , Amar Mitiche , Ismail Ben Ayed

Unsupervised Graph Domain Adaptation (UGDA) leverages labeled source domain graphs to achieve effective performance in unlabeled target domains despite distribution shifts. However, existing methods often yield suboptimal results due to the…

机器学习 · 计算机科学 2025-07-11 Junyu Luo , Yuhao Tang , Yiwei Fu , Xiao Luo , Zhizhuo Kou , Zhiping Xiao , Wei Ju , Wentao Zhang , Ming Zhang

Change detection (CD) is to decouple object changes (i.e., object missing or appearing) from background changes (i.e., environment variations) like light and season variations in two images captured in the same scene over a long time span,…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Rui Huang , Ruofei Wang , Qing Guo , Jieda Wei , Yuxiang Zhang , Wei Fan , Yang Liu

In this paper, we propose a Generative Translation Classification Network (GTCN) for improving visual classification accuracy in settings where classes are visually similar and data is scarce. For this purpose, we propose joint learning…

计算机视觉与模式识别 · 计算机科学 2020-12-03 ByungIn Yoo , Tristan Sylvain , Yoshua Bengio , Junmo Kim

The focus of this paper is to extend Fisher's linear discriminant analysis (LDA) to both densely re-corded functional data and sparsely observed longitudinal data for general $c$-category classification problems. We propose an efficient…

统计方法学 · 统计学 2017-09-07 Lu-Hung Chen , Ci-Ren Jiang

Guessing Codeword Decoding (GCD) is a recently proposed soft-input forward error correction decoder for arbitrary binary linear codes. Inspired by recent proposals that leverage binary linear codebook structure to reduce the number of…

信息论 · 计算机科学 2024-12-23 Joseph Griffin , Peihong Yuan , Ken R. Duffy , Muriel Medard

We propose a variable decomposition algorithm -greedy block coordinate descent (GBCD)- in order to make dense Gaussian process regression practical for large scale problems. GBCD breaks a large scale optimization into a series of small…

机器学习 · 计算机科学 2012-06-18 Liefeng Bo , Cristian Sminchisescu

It has been widely proven that modelling long-range dependencies in fully convolutional networks (FCNs) via global aggregation modules is critical for complex scene understanding tasks such as semantic segmentation and object detection.…

计算机视觉与模式识别 · 计算机科学 2019-09-17 Xiangtai Li , Li Zhang , Ansheng You , Maoke Yang , Kuiyuan Yang , Yunhai Tong

Zero-shot referring image segmentation aims to locate and segment the target region based on a referring expression, with the primary challenge of aligning and matching semantics across visual and textual modalities without training.…

计算机视觉与模式识别 · 计算机科学 2025-05-02 Jiachen Li , Qing Xie , Renshu Gu , Jinyu Xu , Yongjian Liu , Xiaohan Yu

We address the problem of generalized category discovery (GCD) that aims to partition a partially labeled collection of images; only a small part of the collection is labeled and the total number of target classes is unknown. To address…

计算机视觉与模式识别 · 计算机科学 2024-04-16 Sua Choi , Dahyun Kang , Minsu Cho

Graph Convolutional Networks (GCNs) suffer from severe performance degradation in deep architectures due to over-smoothing. While existing studies primarily attribute the over-smoothing to repeated applications of graph Laplacian operators,…

机器学习 · 计算机科学 2025-07-23 Furong Peng , Jinzhen Gao , Xuan Lu , Kang Liu , Yifan Huo , Sheng Wang

In Generalized Zero-Shot Learning (GZSL), we aim to recognize both seen and unseen categories using a model trained only on seen categories. In computer vision, this translates into a classification problem, where knowledge from seen…

计算机视觉与模式识别 · 计算机科学 2025-05-20 William Heyden , Habib Ullah , M. Salman Siddiqui , Fadi Al Machot

Foundation models like CLIP allow zero-shot transfer on various tasks without additional training data. Yet, the zero-shot performance is less competitive than a fully supervised one. Thus, to enhance the performance, fine-tuning and…

计算机视觉与模式识别 · 计算机科学 2026-01-08 Beier Zhu , Kaihua Tang , Qianru Sun , Hanwang Zhang

Generalized Category Discovery (GCD) aims to classify instances from both known and novel categories within a large-scale unlabeled dataset, a critical yet challenging task for real-world, open-world applications. However, existing methods…

计算机视觉与模式识别 · 计算机科学 2026-01-16 Wenwen Liao , Hang Ruan , Jianbo Yu , Yuansong Wang , Qingchao Jiang , Xiaofeng Yang

In this paper we tackle the problem of Generalized Category Discovery (GCD). Specifically, given a dataset with labelled and unlabelled images, the task is to cluster all images in the unlabelled subset, whether or not they belong to the…

计算机视觉与模式识别 · 计算机科学 2023-11-29 Sagar Vaze , Andrea Vedaldi , Andrew Zisserman

Fine-tuning large pretrained vision-language models (VLMs) has emerged as a prevalent paradigm for downstream adaptation, yet it faces a critical trade-off between domain specificity and domain generalization (DG) ability. Current methods…

计算机视觉与模式识别 · 计算机科学 2026-03-13 Xinyao Li , Yinjie Min , Hongbo Chen , Zhekai Du , Fengling Li , Jingjing Li

In this paper, we present a new approach for model acceleration by exploiting spatial sparsity in visual data. We observe that the final prediction in vision Transformers is only based on a subset of the most informative tokens, which is…

计算机视觉与模式识别 · 计算机科学 2023-06-05 Yongming Rao , Zuyan Liu , Wenliang Zhao , Jie Zhou , Jiwen Lu

Vision transformers have demonstrated remarkable success in classification by leveraging global self-attention to capture long-range dependencies. However, this same mechanism can obscure fine-grained spatial details crucial for tasks such…

计算机视觉与模式识别 · 计算机科学 2026-03-06 Sina Hajimiri , Farzad Beizaee , Fereshteh Shakeri , Christian Desrosiers , Ismail Ben Ayed , Jose Dolz

Weakly-supervised change detection (WSCD) aims to detect pixel-level changes with only image-level annotations. Owing to its label efficiency, WSCD is drawing increasing attention recently. However, current WSCD methods often encounter the…

计算机视觉与模式识别 · 计算机科学 2024-04-12 Zhenghui Zhao , Lixiang Ru , Chen Wu