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Unsupervised domain adaptation addresses the problem of classifying data in an unlabeled target domain, given labeled source domain data that share a common label space but follow a different distribution. Most of the recent methods take…

计算机视觉与模式识别 · 计算机科学 2023-02-24 Hui Tang , Yaowei Wang , Kui Jia

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

Dataset pruning reduces the storage and training costs of deep learning by selecting an informative subset from a large dataset. However, most existing pruning methods require fully labeled data, which limits their applicability in…

机器学习 · 计算机科学 2026-05-25 Yeseul Cho , Baekrok Shin , Changmin Kang , Chulhee Yun

We propose a method to facilitate exploration and analysis of new large data sets. In particular, we give an unsupervised deep learning approach to learning a latent representation that captures semantic similarity in the data set. The core…

计算机视觉与模式识别 · 计算机科学 2020-12-23 Gary B Huang , Huei-Fang Yang , Shin-ya Takemura , Pat Rivlin , Stephen M Plaza

Serial femtosecond crystallography at X-ray free electron laser facilities opens a new era for the determination of crystal structure. However, the data processing of those experiments is facing unprecedented challenge, because the total…

材料科学 · 物理学 2023-09-22 Jianan Xie , Ji Liu , Chi Zhang , Xihui Chen , Ping Huai , Jie Zheng , Xiaofeng Zhang

Hyperspectral images capture vast amounts of high-dimensional spectral information about a scene, making labeling an intensive task that is resistant to out-of-the-box statistical methods. Unsupervised learning of clusters allows for…

计算机视觉与模式识别 · 计算机科学 2026-03-12 Joshua Lentz , Nicholas Karris , Alex Cloninger , James M. Murphy

In conventional supervised learning, a training dataset is given with ground-truth labels from a known label set, and the learned model will classify unseen instances to known labels. This paper studies a new problem setting in which there…

机器学习 · 计算机科学 2024-06-03 Peng Zhao , Jia-Wei Shan , Yu-Jie Zhang , Zhi-Hua Zhou

Due to recent advances in data collection techniques, massive amounts of data are being collected at an extremely fast pace. Also, these data are potentially unbounded. Boundless streams of data collected from sensors, equipments, and other…

数据库 · 计算机科学 2012-03-12 T Soni Madhulatha

In a broad range of fields it may be desirable to reuse a supervised classification algorithm and apply it to a new data set. However, generalization of such an algorithm and thus achieving a similar classification performance is only…

计算机视觉与模式识别 · 计算机科学 2020-08-13 Evelien Schat , Rens van de Schoot , Wouter M. Kouw , Duco Veen , Adriënne M. Mendrik

Similarity-based clustering and semi-supervised learning methods separate the data into clusters or classes according to the pairwise similarity between the data, and the pairwise similarity is crucial for their performance. In this paper,…

机器学习 · 统计学 2017-09-06 Yingzhen Yang , Feng Liang , Nebojsa Jojic , Shuicheng Yan , Jiashi Feng , Thomas S. Huang

Applying Machine learning to domains like Earth Sciences is impeded by the lack of labeled data, despite a large corpus of raw data available in such domains. For instance, training a wildfire classifier on satellite imagery requires…

计算机视觉与模式识别 · 计算机科学 2023-01-02 Tarun Narayanan , Ajay Krishnan , Anirudh Koul , Siddha Ganju

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

Reading comprehension (RC) has been studied in a variety of datasets with the boosted performance brought by deep neural networks. However, the generalization capability of these models across different domains remains unclear. To alleviate…

计算与语言 · 计算机科学 2020-07-28 Yu Cao , Meng Fang , Baosheng Yu , Joey Tianyi Zhou

In many machine learning applications, labeling datasets can be an arduous and time-consuming task. Although research has shown that semi-supervised learning techniques can achieve high accuracy with very few labels within the field of…

计算机视觉与模式识别 · 计算机科学 2023-06-07 Evelyn J. Mannix , Howard D. Bondell

Benchmarking anomaly detection approaches for multivariate time series is a challenging task due to a lack of high-quality datasets. Current publicly available datasets are too small, not diverse and feature trivial anomalies, which hinders…

机器学习 · 计算机科学 2025-11-13 Lucas Correia , Jan-Christoph Goos , Thomas Bäck , Anna V. Kononova

Semi-supervised clustering is the task of clustering data points into clusters where only a fraction of the points are labelled. The true number of clusters in the data is often unknown and most models require this parameter as an input.…

机器学习 · 计算机科学 2013-09-27 Amar Shah , Zoubin Ghahramani

Semi-supervised learning deals with the problem of how, if possible, to take advantage of a huge amount of unclassified data, to perform a classification in situations when, typically, there is little labeled data. Even though this is not…

机器学习 · 统计学 2020-12-11 Alejandro Cholaquidis , Ricardo Fraiman , Mariela Sued

Fully-unsupervised Person and Vehicle Re-Identification have received increasing attention due to their broad applicability in surveillance, forensics, event understanding, and smart cities, without requiring any manual annotation. However,…

计算机视觉与模式识别 · 计算机科学 2023-07-27 Gabriel Bertocco , Fernanda Andaló , Terrance E. Boult , Anderson Rocha

Supervised machine learning often requires large training sets to train accurate models, yet obtaining large amounts of labeled data is not always feasible. Hence, it becomes crucial to explore active learning methods for reducing the size…

机器学习 · 计算机科学 2024-04-16 Ashna Jose , Emilie Devijver , Massih-Reza Amini , Noel Jakse , Roberta Poloni

In many machine learning domains, datasets are characterized by highly imbalanced and overlapping classes. Particularly in the medical domain, a specific list of symptoms can be labeled as one of various different conditions. Some of these…

机器学习 · 计算机科学 2020-06-03 Ran Ilan Ber , Tom Haramaty