Results 31 to 40 of about 120,140 (335)

Debiased Contrastive Learning

open access: yesCoRR, 2020
A prominent technique for self-supervised representation learning has been to contrast semantically similar and dissimilar pairs of samples. Without access to labels, dissimilar (negative) points are typically taken to be randomly sampled datapoints, implicitly accepting that these points may, in reality, actually have the same label.
Ching-Yao Chuang   +4 more
openaire   +3 more sources

Supervised Contrastive Learning

open access: yesCoRR, 2020
Contrastive learning applied to self-supervised representation learning has seen a resurgence in recent years, leading to state of the art performance in the unsupervised training of deep image models. Modern batch contrastive approaches subsume or significantly outperform traditional contrastive losses such as triplet, max-margin and the N-pairs loss.
Prannay Khosla   +8 more
openaire   +3 more sources

Contrastive learning and neural oscillations [PDF]

open access: yes, 1991
The concept of Contrastive Learning (CL) is developed as a family of possible learning algorithms for neural networks. CL is an extension of Deterministic Boltzmann Machines to more general dynamical systems.
Baldi, Pierre, Pineda, Fernando
core   +1 more source

Signal Contrastive Enhanced Graph Collaborative Filtering for Recommendation

open access: yesData Science and Engineering, 2023
Graph collaborative filtering methods have shown great performance improvements compared with deep neural network-based models. However, these methods suffer from data sparsity and data noise problems.
Zhi-Yuan Li   +3 more
doaj   +1 more source

Contrastive Attraction and Contrastive Repulsion for Representation Learning

open access: yesTrans. Mach. Learn. Res., 2021
Contrastive learning (CL) methods effectively learn data representations in a self-supervision manner, where the encoder contrasts each positive sample over multiple negative samples via a one-vs-many softmax cross-entropy loss. By leveraging large amounts of unlabeled image data, recent CL methods have achieved promising results when pretrained on ...
Huangjie Zheng   +9 more
openaire   +3 more sources

A Framework Using Contrastive Learning for Classification with Noisy Labels

open access: yesData, 2021
We propose a framework using contrastive learning as a pre-training task to perform image classification in the presence of noisy labels. Recent strategies, such as pseudo-labeling, sample selection with Gaussian Mixture models, and weighted supervised ...
Madalina Ciortan   +2 more
doaj   +1 more source

Self-supervised Dynamic Graph Representation Learning Approach Based on Contrastive Prediction [PDF]

open access: yesJisuanji kexue, 2023
In recent years,graph self-supervised learning represented by graph contrastive learning has become a hot research to-pic in the field of graph learning.This learning paradigm does not depend on node labels and has good generalization ability.However ...
JIANG Linpu, CHEN Kejia
doaj   +1 more source

LinkFND: Simple Framework for False Negative Detection in Recommendation Tasks With Graph Contrastive Learning

open access: yesIEEE Access, 2023
Self-supervised learning has been shown to be effective in various fields, proving its usefulness in contrastive learning. Recently, graph contrastive learning has shown state-of-the-art performance in the recommendation task.
Sanghun Kim, Hyeryung Jang
doaj   +1 more source

Unbiased Supervised Contrastive Learning

open access: yesCoRR, 2022
Accepted at ICLR 2023 (v3); Fix typo in Eq.19 (v4)
Carlo Alberto Barbano   +4 more
openaire   +4 more sources

SC-FGCL: Self-Adaptive Cluster-Based Federal Graph Contrastive Learning

open access: yesIEEE Open Journal of the Computer Society, 2023
As a self-supervised learning method, the graph contrastive learning achieve admirable performance in graph pre-training tasks, and can be fine-tuned for multiple downstream tasks such as protein structure prediction, social recommendation, etc.
Tingqi Wang   +4 more
doaj   +1 more source

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