Results 51 to 60 of about 5,879,357 (336)

Unsupervised learning algorithm for signal validation in emergency situations at nuclear power plants

open access: yesNuclear Engineering and Technology, 2022
This paper proposes an algorithm for signal validation using unsupervised methods in emergency situations at nuclear power plants (NPPs) when signals are rapidly changing.
Younhee Choi   +2 more
doaj   +1 more source

HoloGAN: Unsupervised Learning of 3D Representations From Natural Images

open access: yes2019 IEEE/CVF International Conference on Computer Vision Workshop (ICCVW), 2019
We propose a novel generative adversarial network (GAN) for the task of unsupervised learning of 3D representations from natural images. Most generative models rely on 2D kernels to generate images and make few assumptions about the 3D world.
Thu Nguyen-Phuoc   +4 more
semanticscholar   +1 more source

Occlusion Aware Unsupervised Learning of Optical Flow

open access: yes, 2018
It has been recently shown that a convolutional neural network can learn optical flow estimation with unsupervised learning. However, the performance of the unsupervised methods still has a relatively large gap compared to its supervised counterpart ...
Wang, Peng   +5 more
core   +1 more source

Unsupervised Learning of Monocular Depth and Ego-Motion with Optical Flow Features and Multiple Constraints

open access: yesSensors, 2022
This paper proposes a novel unsupervised learning framework for depth recovery and camera ego-motion estimation from monocular video. The framework exploits the optical flow (OF) property to jointly train the depth and the ego-motion models.
Baigan Zhao   +3 more
doaj   +1 more source

An Unsupervised Learning Model for Deformable Medical Image Registration [PDF]

open access: yes2018 IEEE/CVF Conference on Computer Vision and Pattern Recognition, 2018
We present a fast learning-based algorithm for deformable, pairwise 3D medical image registration. Current registration methods optimize an objective function independently for each pair of images, which can be time-consuming for large data.
Guha Balakrishnan   +4 more
semanticscholar   +1 more source

Learning Features by Watching Objects Move

open access: yes, 2017
This paper presents a novel yet intuitive approach to unsupervised feature learning. Inspired by the human visual system, we explore whether low-level motion-based grouping cues can be used to learn an effective visual representation.
Darrell, Trevor   +4 more
core   +1 more source

Deep Temporal Iterative Clustering for Satellite Image Time Series Land Cover Analysis

open access: yesRemote Sensing, 2022
The extensive amount of Satellite Image Time Series (SITS) data brings new opportunities and challenges for land cover analysis. Many supervised machine learning methods have been applied in SITS, but the labeled SITS samples are time- and effort ...
Wenqi Guo   +4 more
doaj   +1 more source

Local Aggregation for Unsupervised Learning of Visual Embeddings [PDF]

open access: yesIEEE International Conference on Computer Vision, 2019
Unsupervised approaches to learning in neural networks are of substantial interest for furthering artificial intelligence, both because they would enable the training of networks without the need for large numbers of expensive annotations, and because ...
Chengxu Zhuang, Alex Zhai, Daniel Yamins
semanticscholar   +1 more source

Unsupervised Learning of Edges

open access: yes, 2016
Data-driven approaches for edge detection have proven effective and achieve top results on modern benchmarks. However, all current data-driven edge detectors require manual supervision for training in the form of hand-labeled region segments or object ...
Dollár, Piotr   +3 more
core   +1 more source

A Brief Review of Unsupervised Machine Learning Algorithms in Astronomy: Dimensionality Reduction and Clustering

open access: yesUniverse
This review investigates the application of unsupervised machine learning algorithms to astronomical data. Unsupervised machine learning enables researchers to analyze large, high-dimensional, and unlabeled datasets and is sometimes considered more ...
Chih-Ting Kuo, Duo Xu, Rachel Friesen
doaj   +1 more source

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