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Graph-based semi-supervised learning has been shown to be one of the most effective approaches for classification tasks from a wide range of domains, such as image classification and text classification, as they can exploit the connectivity…

计算机视觉与模式识别 · 计算机科学 2020-04-09 Wanyu Lin , Zhaolin Gao , Baochun Li

In this paper, we propose a semi-supervised deep learning method for detecting the specific types of reads that impede the de novo genome assembly process. Instead of dealing directly with sequenced reads, we analyze their coverage graphs…

机器学习 · 计算机科学 2019-04-24 Tomislav Šebrek , Jan Tomljanović , Josip Krapac , Mile Šikić

Deep generative models parameterized by neural networks have recently achieved state-of-the-art performance in unsupervised and semi-supervised learning. We extend deep generative models with auxiliary variables which improves the…

机器学习 · 统计学 2016-06-17 Lars Maaløe , Casper Kaae Sønderby , Søren Kaae Sønderby , Ole Winther

In several domains obtaining class annotations is expensive while at the same time unlabelled data are abundant. While most semi-supervised approaches enforce restrictive assumptions on the data distribution, recent work has managed to…

机器学习 · 统计学 2017-10-11 Martin Trapp , Tamas Madl , Robert Peharz , Franz Pernkopf , Robert Trappl

Class distribution mismatch (CDM) refers to the discrepancy between class distributions in training data and target tasks. Previous methods address this by designing classifiers to categorize classes known during training, while grouping…

计算机视觉与模式识别 · 计算机科学 2025-05-13 Pan Du , Wangbo Zhao , Xinai Lu , Nian Liu , Zhikai Li , Chaoyu Gong , Suyun Zhao , Hong Chen , Cuiping Li , Kai Wang , Yang You

A common assumption in semi-supervised learning is that the labeled, unlabeled, and test data are drawn from the same distribution. However, this assumption is not satisfied in many applications. In many scenarios, the data is collected…

During time-critical situations such as natural disasters, rapid classification of data posted on social networks by affected people is useful for humanitarian organizations to gain situational awareness and to plan response efforts.…

计算机与社会 · 计算机科学 2018-05-17 Firoj Alam , Shafiq Joty , Muhammad Imran

Zero-shot learning (ZSL) refers to the problem of learning to classify instances from the novel classes (unseen) that are absent in the training set (seen). Most ZSL methods infer the correlation between visual features and attributes to…

计算机视觉与模式识别 · 计算机科学 2021-03-04 Zhe Liu , Yun Li , Lina Yao , Xianzhi Wang , Guodong Long

Action segmentation of behavioral videos is the process of labeling each frame as belonging to one or more discrete classes, and is a crucial component of many studies that investigate animal behavior. A wide range of algorithms exist to…

计算机视觉与模式识别 · 计算机科学 2024-12-19 Ari Blau , Evan S Schaffer , Neeli Mishra , Nathaniel J Miska , The International Brain Laboratory , Liam Paninski , Matthew R Whiteway

While Semi-supervised learning has gained much attention in computer vision on image data, yet limited research exists on its applicability in the time series domain. In this work, we investigate the transferability of state-of-the-art deep…

机器学习 · 计算机科学 2022-02-17 Jann Goschenhofer , Rasmus Hvingelby , David Rügamer , Janek Thomas , Moritz Wagner , Bernd Bischl

This paper presents a new method for unsupervised segmentation of complex activities from video into multiple steps, or sub-activities, without any textual input. We propose an iterative discriminative-generative approach which alternates…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Fadime Sener , Angela Yao

We investigate omni-supervised learning, a special regime of semi-supervised learning in which the learner exploits all available labeled data plus internet-scale sources of unlabeled data. Omni-supervised learning is lower-bounded by…

计算机视觉与模式识别 · 计算机科学 2017-12-13 Ilija Radosavovic , Piotr Dollár , Ross Girshick , Georgia Gkioxari , Kaiming He

Recent research put a big effort in the development of deep learning architectures and optimizers obtaining impressive results in areas ranging from vision to language processing. However little attention has been addressed to the need of a…

计算机视觉与模式识别 · 计算机科学 2018-12-20 Gabriele Valvano , Andrea Leo , Daniele Della Latta , Nicola Martini , Gianmarco Santini , Dante Chiappino , Emiliano Ricciardi

Classification is an important task in many fields including biomedical research and machine learning. Traditionally, a classification rule is constructed based a bunch of labeled data. Recently, due to technological innovation and…

统计方法学 · 统计学 2014-06-19 Jing Wang , Eunsik Park , Yuan-chin Ivan Chang

Unsupervised models can provide supplementary soft constraints to help classify new, "target" data since similar instances in the target set are more likely to share the same class label. Such models can also help detect possible…

机器学习 · 计算机科学 2012-06-06 Ayan Acharya , Eduardo R. Hruschka , Joydeep Ghosh , Sreangsu Acharyya

Semi-supervised classification based on active learning has made significant progress, but the existing methods often ignore the uncertainty estimation (or reliability) of the prediction results during the learning process, which makes it…

机器学习 · 计算机科学 2025-05-28 Shenkai Zhao , Xinao Zhang , Lipeng Pan , Xiaobin Xu , Danilo Pelusi

Acquiring labels are often costly, whereas unlabeled data are usually easy to obtain in modern machine learning applications. Semi-supervised learning provides a principled machine learning framework to address such situations, and has been…

机器学习 · 计算机科学 2017-04-07 Trung Le , Khanh Nguyen , Van Nguyen , Vu Nguyen , Dinh Phung

In recent years, significant progress has been made in the field of learning from positive and unlabeled examples (PU learning), particularly in the context of advancing image and text classification tasks. However, applying PU learning to…

图像与视频处理 · 电气工程与系统科学 2024-05-08 Yan Zhang , Chun Li , Zhaoxia Liu , Ming Li

Training deep learning models on in-home IoT sensory data is commonly used to recognise human activities. Recently, federated learning systems that use edge devices as clients to support local human activity recognition have emerged as a…

机器学习 · 计算机科学 2021-04-01 Yuchen Zhao , Hanyang Liu , Honglin Li , Payam Barnaghi , Hamed Haddadi

Accelerometers are widely used to measure physical activity behaviour, including in children. The traditional method for processing acceleration data uses cut points to define physical activity intensity, relying on calibration studies that…

定量方法 · 定量生物学 2022-02-22 Christopher B Thornton , Niina Kolehmainen , Kianoush Nazarpour