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While supervised deep learning has achieved great success in a range of applications, relatively little work has studied the discovery of knowledge from unlabeled data. In this paper, we propose an unsupervised deep learning framework to…

计算机视觉与模式识别 · 计算机科学 2020-09-14 Jinghua Wang , Jianmin Jiang

Self-training is a powerful approach to deep learning. The key process is to find a pseudo-label for modeling. However, previous self-training algorithms suffer from the over-confidence issue brought by the hard labels, even some…

计算机视觉与模式识别 · 计算机科学 2024-05-03 Zijia Wang , Wenbin Yang , Zhisong Liu , Zhen Jia

We consider the task of semi-supervised semantic segmentation, where we aim to produce pixel-wise semantic object masks given only a small number of human-labeled training examples. We focus on iterative self-training methods in which we…

计算机视觉与模式识别 · 计算机科学 2022-05-02 Eu Wern Teh , Terrance DeVries , Brendan Duke , Ruowei Jiang , Parham Aarabi , Graham W. Taylor

We present a differentiable, decision-oriented learning framework for cost prediction in a class of multi-robot decision-making problems, in which the robots need to trade off the task performance with the costs of taking actions when they…

机器人学 · 计算机科学 2024-03-27 Guangyao Shi , Chak Lam Shek , Nare Karapetyan , Pratap Tokekar

X-ray computed tomography (CT) is a widely used imaging technique that provides detailed examinations into the internal structure of an object with synchrotron CT (SR-CT) enabling improved data quality by using higher energy, monochromatic…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Austin Yunker , Peter Kenesei , Hemant Sharma , Jun-Sang Park , Antonino Miceli , Rajkumar Kettimuthu

We develop biologically plausible training mechanisms for self-supervised learning (SSL) in deep networks. Specifically, by biological plausible training we mean (i) All updates of weights are based on current activities of pre-synaptic…

神经与进化计算 · 计算机科学 2022-02-02 Mufeng Tang , Yibo Yang , Yali Amit

This paper develops a novel machine learning-based framework using Semi-Supervised Multi-Task Learning (SS-MTL) for power system dynamic security assessment that is accurate, reliable, and aware of topological changes. The learning…

机器学习 · 计算机科学 2024-07-15 Muhy Eddin Za'ter , Amirhossein Sajadi , Bri-Mathias Hodge

The training of deep neural networks is inherently a nonconvex optimization problem, yet standard approaches such as stochastic gradient descent (SGD) require simultaneous updates to all parameters, often leading to unstable convergence and…

机器学习 · 计算机科学 2025-08-07 Chengcheng Yan , Jiawei Xu , Zheng Peng , Qingsong Wang

Supervised learning deals with the inference of a distribution over an output or label space $\CY$ conditioned on points in an observation space $\CX$, given a training dataset $D$ of pairs in $\CX \times \CY$. However, in a lot of…

机器学习 · 计算机科学 2007-11-15 Christos Dimitrakakis , Christian Savu-Krohn

Supervisory signals have the potential to make low-dimensional data representations, like those learned by mixture and topic models, more interpretable and useful. We propose a framework for training latent variable models that explicitly…

Background: Most of the existing machine learning models for security tasks, such as spam detection, malware detection, or network intrusion detection, are built on supervised machine learning algorithms. In such a paradigm, models need a…

密码学与安全 · 计算机科学 2022-05-03 Rui Shu , Tianpei Xia , Huy Tu , Laurie Williams , Tim Menzies

Self-training (ST) has come to fruition in language understanding tasks by producing pseudo labels, which reduces the labeling bottleneck of language model fine-tuning. Nevertheless, in facilitating semi-supervised controllable language…

计算与语言 · 计算机科学 2023-06-21 Yuxi Feng , Xiaoyuan Yi , Laks V. S. Lakshmanan , Xing Xie

In this work, we propose a novel framework to enhance the efficiency and accuracy of neural operators through self-composition, offering both theoretical guarantees and practical benefits. Inspired by iterative methods in solving numerical…

机器学习 · 计算机科学 2025-08-29 Juncai He , Xinliang Liu , Jinchao Xu

Deep learning (DL) is gaining popularity as a parameter estimation method for quantitative MRI. A range of competing implementations have been proposed, relying on either supervised or self-supervised learning. Self-supervised approaches,…

医学物理 · 物理学 2024-01-24 Sean C. Epstein , Timothy J. P. Bray , Margaret Hall-Craggs , Hui Zhang

Semi-supervised learning (SSL) has proven to be effective at leveraging large-scale unlabeled data to mitigate the dependency on labeled data in order to learn better models for visual recognition and classification tasks. However, recent…

计算机视觉与模式识别 · 计算机科学 2021-08-20 Hasib Zunair , Yan Gobeil , Samuel Mercier , A. Ben Hamza

In video surveillance, person re-identification is the task of searching person images in non-overlapping cameras. Though supervised methods for person re-identification have attained impressive performance, obtaining large scale cross-view…

计算机视觉与模式识别 · 计算机科学 2019-10-10 T M Feroz Ali , Subhasis Chaudhuri

Unsupervised source-free domain adaptation methods aim to train a model for the target domain utilizing a pretrained source-domain model and unlabeled target-domain data, particularly when accessibility to source data is restricted due to…

计算机视觉与模式识别 · 计算机科学 2024-04-10 Ibrahim Batuhan Akkaya , Ugur Halici

Semi-supervised clustering is an very important topic in machine learning and computer vision. The key challenge of this problem is how to learn a metric, such that the instances sharing the same label are more likely close to each other on…

机器学习 · 计算机科学 2015-01-27 Gang Chen

State-of-the-art training algorithms for deep learning models are based on stochastic gradient descent (SGD). Recently, many variations have been explored: perturbing parameters for better accuracy (such as in Extragradient), limiting SGD…

机器学习 · 计算机科学 2022-03-23 Amirkeivan Mohtashami , Martin Jaggi , Sebastian U. Stich

Compressive sensing (CS) is a promising technology for realizing energy-efficient wireless sensors for long-term health monitoring. However, conventional model-driven CS frameworks suffer from limited compression ratio and reconstruction…

机器学习 · 计算机科学 2016-12-19 Kai Xu , Yixing Li , Fengbo Ren