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Deep generative models trained with large amounts of unlabelled data have proven to be powerful within the domain of unsupervised learning. Many real life data sets contain a small amount of labelled data points, that are typically…

机器学习 · 统计学 2017-04-04 Lars Maaløe , Marco Fraccaro , Ole Winther

Despite great strides made on fine-grained visual classification (FGVC), current methods are still heavily reliant on fully-supervised paradigms where ample expert labels are called for. Semi-supervised learning (SSL) techniques, acquiring…

计算机视觉与模式识别 · 计算机科学 2021-12-07 Ruoyi Du , Dongliang Chang , Zhanyu Ma , Yi-Zhe Song , Jun Guo

Learning-based 3D shape segmentation is usually formulated as a semantic labeling problem, assuming that all parts of training shapes are annotated with a given set of tags. This assumption, however, is impractical for learning fine-grained…

计算机视觉与模式识别 · 计算机科学 2022-01-14 Xiaogang Wang , Xun Sun , Xinyu Cao , Kai Xu , Bin Zhou

The clustering-based unsupervised relation discovery method has gradually become one of the important methods of open relation extraction (OpenRE). However, high-dimensional vectors can encode complex linguistic information which leads to…

计算与语言 · 计算机科学 2021-09-16 Jun Zhao , Tao Gui , Qi Zhang , Yaqian Zhou

Generalized Category Discovery (GCD) leverages labeled data to categorize unlabeled samples from known or unknown classes. Most previous methods jointly optimize supervised and unsupervised objectives and achieve promising results. However,…

机器学习 · 计算机科学 2026-04-17 Haiyang Zheng , Nan Pu , Yaqi Cai , Teng Long , Wenjing Li , Nicu Sebe , Zhun Zhong

What sorts of structure might enable a learner to discover classes from unlabeled data? Traditional approaches rely on feature-space similarity and heroic assumptions on the data. In this paper, we introduce unsupervised learning under…

机器学习 · 计算机科学 2022-12-02 Manley Roberts , Pranav Mani , Saurabh Garg , Zachary C. Lipton

Discovering new intents is a crucial task in dialogue systems. Most existing methods are limited in transferring the prior knowledge from known intents to new intents. They also have difficulties in providing high-quality supervised signals…

计算与语言 · 计算机科学 2023-04-24 Hanlei Zhang , Hua Xu , Ting-En Lin , Rui Lyu

Deep neural networks have achieved state-of-the-art performance in a wide range of recognition/classification tasks. However, when applying deep learning to real-world applications, there are still multiple challenges. A typical challenge…

机器学习 · 计算机科学 2021-02-10 Xin Sun , Zhenning Yang , Chi Zhang , Guohao Peng , Keck-Voon Ling

To enhance group robustness to spurious correlations, prior work often relies on auxiliary group annotations and assumes identical sets of groups across training and test domains. To overcome these limitations, we propose to leverage…

计算机视觉与模式识别 · 计算机科学 2026-03-23 Chenruo Liu , Hongjun Liu , Zeyu Lai , Yiqiu Shen , Chen Zhao , Qi Lei

Ultra-fine-grained visual categorization (Ultra-FGVC) aims at distinguishing highly similar sub-categories within fine-grained objects, such as different soybean cultivars. Compared to traditional fine-grained visual categorization,…

计算机视觉与模式识别 · 计算机科学 2024-05-13 Yu Liu , Yaqi Cai , Qi Jia , Binglin Qiu , Weimin Wang , Nan Pu

In the quest for unveiling novel categories at test time, we confront the inherent limitations of traditional supervised recognition models that are restricted by a predefined category set. While strides have been made in the realms of…

计算机视觉与模式识别 · 计算机科学 2024-01-19 Sarah Rastegar , Hazel Doughty , Cees G. M. Snoek

Semi-supervised learning is a model training method that uses both labeled and unlabeled data. This paper proposes a fully Bayes semi-supervised learning algorithm that can be applied to any multi-category classification problem. We assume…

机器学习 · 统计学 2024-07-22 Rui Zhu , Shuvrarghya Ghosh , Subhashis Ghosal

Existing deep learning models have achieved promising performance in recognizing skin diseases from dermoscopic images. However, these models can only recognize samples from predefined categories, when they are deployed in the clinic, data…

计算机视觉与模式识别 · 计算机科学 2023-09-29 Wei Feng , Lie Ju , Lin Wang , Kaimin Song , Zongyuan Ge

In class-incremental semantic segmentation, we have no access to the labeled data of previous tasks. Therefore, when incrementally learning new classes, deep neural networks suffer from catastrophic forgetting of previously learned…

计算机视觉与模式识别 · 计算机科学 2022-03-14 Lu Yu , Xialei Liu , Joost van de Weijer

Weakly supervised point cloud semantic segmentation methods that require 1\% or fewer labels, hoping to realize almost the same performance as fully supervised approaches, which recently, have attracted extensive research attention. A…

计算机视觉与模式识别 · 计算机科学 2022-09-19 Tianfang Sun , Zhizhong Zhang , Xin Tan , Yanyun Qu , Yuan Xie , Lizhuang Ma

Novel class discovery (NCD) aims to infer novel categories in an unlabeled dataset by leveraging prior knowledge of a labeled set comprising disjoint but related classes. Given that most existing literature focuses primarily on utilizing…

机器学习 · 计算机科学 2023-06-07 Ziyun Li , Jona Otholt , Ben Dai , Di Hu , Christoph Meinel , Haojin Yang

Recognizing and differentiating among both familiar and unfamiliar faces is a critical capability for face recognition systems and a key step toward artificial general intelligence (AGI). Motivated by this ability, this paper introduces…

计算机视觉与模式识别 · 计算机科学 2025-07-31 Yunseok Oh , Dong-Wan Choi

This paper investigates a general framework to discover categories of unlabeled scene images according to their appearances (i.e., textures and structures). We jointly solve the two coupled tasks in an unsupervised manner: (i) classifying…

计算机视觉与模式识别 · 计算机科学 2015-02-03 Liang Lin , Ruimao Zhang , Xiaohua Duan

Generalising deep networks to novel domains without manual labels is challenging to deep learning. This problem is intrinsically difficult due to unpredictable changing nature of imagery data distributions in novel domains. Pre-learned…

计算机视觉与模式识别 · 计算机科学 2020-06-09 Jiabo Huang , Shaogang Gong

Constrained clustering allows the training of classification models using pairwise constraints only, which are weak and relatively easy to mine, while still yielding full-supervision-level model performance. While they perform well even in…

机器学习 · 计算机科学 2023-11-28 Jann Goschenhofer , Bernd Bischl , Zsolt Kira