Results 41 to 50 of about 137,057 (303)

A Single-Stage Unsupervised Denoising Low-Illumination Enhancement Network Based on Swin-Transformer

open access: yesIEEE Access, 2023
Traditional low-light enhancement methods are often based on paired datasets for training. The training data is difficult to obtain and the resulting model has poor generalization.
Qian Zhang   +3 more
doaj   +1 more source

Self-Supervised and Few-Shot Contrastive Learning Frameworks for Text Clustering

open access: yesIEEE Access, 2023
Contrastive learning is a promising approach to unsupervised learning, as it inherits the advantages of well-studied deep models without a dedicated and complex model design. In this paper, based on bidirectional encoder representations from transformers
Haoxiang Shi, Tetsuya Sakai
doaj   +1 more source

Unsupervised Learning of Temporal Abstractions with Slot-Based Transformers [PDF]

open access: yes, 2022
The discovery of reusable subroutines simplifies decision making and planning in complex reinforcement learning problems. Previous approaches propose to learn such temporal abstractions in an unsupervised fashion through observing state-action ...
van Steenkiste, Sjoerd   +3 more
core   +1 more source

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

Unsupervised learning in noise [PDF]

open access: yesIEEE Transactions on Neural Networks, 1990
A new hybrid learning law, the differential competitive law, which uses the neuronal signal velocity as a local unsupervised reinforcement mechanism, is introduced, and its coding and stability behavior in feedforward and feedback networks is examined.
openaire   +2 more sources

On The Philosophy of Unsupervised Learning

open access: yesSSRN Electronic Journal, 2022
AbstractUnsupervised learning algorithms are widely used for many important statistical tasks with numerous applications in science and industry. Yet despite their prevalence, they have attracted remarkably little philosophical scrutiny to date. This stands in stark contrast to supervised and reinforcement learning algorithms, which have been widely ...
openaire   +1 more source

Towards Open Ended Learning: Budgets, Model Selection, and Representation [PDF]

open access: yes, 2011
Biological organisms learn to recognize visual categories continuously over the course of their lifetimes. This impressive capability allows them to adapt to new circumstances as they arise, and to flexibly incorporate new object categories as they are ...
Gomes, Ryan Geoffrey
core   +1 more source

SUN: Stochastic UNsupervised Learning for Data Noise and Uncertainty Reduction

open access: yesApplied Sciences
Unsupervised learning methods significantly benefit various practical applications by effectively identifying intrinsic patterns within unlabelled data.
Nicholas Christakis, Dimitris Drikakis
doaj   +1 more source

A comment on the training of unsupervised neural networks for learning phases

open access: yesResults in Physics, 2022
The impact on the performance of an unsupervised neural network (NN) for learning the phases of two-dimensional ferromagnetic Potts model, namely a deep learning autoencoder (AE), from using various training sets is investigated.
Yuan-Heng Tseng, Fu-Jiun Jiang
doaj   +1 more source

Unsupervised Learning of Visual Structure [PDF]

open access: yesJournal of Vision, 2002
To learn a visual code in an unsupervised manner, one may attempt to capture those features of the stimulus set that would contribute significantly to a statistically efficient representation (as dictated, e.g., by the Minimum Description Length principle).
Shimon Edelman   +2 more
openaire   +1 more source

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