Results 1 to 10 of about 120,140 (335)

Contrastive Learning for Inference in Dialogue

open access: yesProceedings of the 2023 Conference on Empirical Methods in Natural Language Processing, 2023
Accepted to ...
Etsuko Ishii   +6 more
openaire   +2 more sources

Tuned Contrastive Learning

open access: yes2025 IEEE/CVF Winter Conference on Applications of Computer Vision (WACV)
In recent times, contrastive learning based loss functions have become increasingly popular for visual self-supervised representation learning owing to their state-of-the-art (SOTA) performance. Most of the modern contrastive learning methods generalize only to one positive and multiple negatives per anchor.
Chaitanya Animesh, Manmohan Chandraker
openaire   +2 more sources

Graph Communal Contrastive Learning

open access: yesProceedings of the ACM Web Conference 2022, 2022
Graph representation learning is crucial for many real-world applications (e.g. social relation analysis). A fundamental problem for graph representation learning is how to effectively learn representations without human labeling, which is usually costly and time-consuming. Graph contrastive learning (GCL) addresses this problem by pulling the positive
Bolian Li, Baoyu Jing, Hanghang Tong
openaire   +2 more sources

Study on Graph Collaborative Filtering Model Based on FeatureNet Contrastive Learning [PDF]

open access: yesJisuanji kexue
Graph-based collaborative filtering recommendation techniques have gained significant attention for their ability to efficiently process large-scale interaction data.However,the effectiveness of these techniques is limited by the sparsity of data in real-
WU Pengyuan, FANG Wei
doaj   +1 more source

Graph Clustering with High-Order Contrastive Learning

open access: yesEntropy, 2023
Graph clustering is a fundamental and challenging task in unsupervised learning. It has achieved great progress due to contrastive learning. However, we find that there are two problems that need to be addressed: (1) The augmentations in most graph ...
Wang Li, En Zhu, Siwei Wang, Xifeng Guo
doaj   +1 more source

Time-Contrastive Networks: Self-Supervised Learning from Video

open access: yes, 2018
We propose a self-supervised approach for learning representations and robotic behaviors entirely from unlabeled videos recorded from multiple viewpoints, and study how this representation can be used in two robotic imitation settings: imitating object ...
Chebotar, Yevgen   +6 more
core   +1 more source

Graph Contrastive Learning for Materials

open access: yesCoRR, 2022
Recent work has shown the potential of graph neural networks to efficiently predict material properties, enabling high-throughput screening of materials. Training these models, however, often requires large quantities of labelled data, obtained via costly methods such as ab initio calculations or experimental evaluation.
Teddy Koker   +4 more
openaire   +2 more sources

PDCNet: A Polarimetric Data-Enhanced Contrastive Learning Network for PolSAR Land Cover Classification

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Polarimetric synthetic aperture radar (PolSAR) has rich polarization information, offering an efficient and reliable means of collecting information. However, how to effectively leverage these complex data to extract polarization features remains a key ...
Bo Ren   +6 more
doaj   +1 more source

An Unsupervised Band Selection Method via Contrastive Learning for Hyperspectral Images

open access: yesRemote Sensing, 2023
Band selection (BS) is an efficacious approach to reduce hyperspectral information redundancy while preserving the physical meaning of hyperspectral images (HSIs).
Xiaorun Li   +3 more
doaj   +1 more source

Learning in Markov Random Fields with Contrastive Free Energies [PDF]

open access: yes, 2005
Learning Markov random field (MRF) models is notoriously hard due to the presence of a global normalization factor. In this paper we present a new framework for learning MRF models based on the contrastive free energy (CF) objective function.
Sutton, Charles, Welling, Max
core   +1 more source

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