The heterophilic graph learning handbook: Benchmarks, models, theoretical analysis, applications and challenges

S Luan, C Hua, Q Lu, L Ma, L Wu, X Wang… - arxiv preprint arxiv …, 2024 - arxiv.org
Homophily principle,\ie {} nodes with the same labels or similar attributes are more likely to
be connected, has been commonly believed to be the main reason for the superiority of …

Simgrace: A simple framework for graph contrastive learning without data augmentation

J **a, L Wu, J Chen, B Hu, SZ Li - … of the ACM Web Conference 2022, 2022 - dl.acm.org
Graph contrastive learning (GCL) has emerged as a dominant technique for graph
representation learning which maximizes the mutual information between paired graph …

LightGCL: Simple yet effective graph contrastive learning for recommendation

X Cai, C Huang, L **a, X Ren - arxiv preprint arxiv:2302.08191, 2023 - arxiv.org
Graph neural network (GNN) is a powerful learning approach for graph-based recommender
systems. Recently, GNNs integrated with contrastive learning have shown superior …

Spectral feature augmentation for graph contrastive learning and beyond

Y Zhang, H Zhu, Z Song, P Koniusz… - Proceedings of the AAAI …, 2023 - ojs.aaai.org
Although augmentations (eg, perturbation of graph edges, image crops) boost the efficiency
of Contrastive Learning (CL), feature level augmentation is another plausible …

Unsupervised representation learning for time series: A review

Q Meng, H Qian, Y Liu, Y Xu, Z Shen, L Cui - arxiv preprint arxiv …, 2023 - arxiv.org
Unsupervised representation learning approaches aim to learn discriminative feature
representations from unlabeled data, without the requirement of annotating every sample …

Simple contrastive graph clustering

Y Liu, X Yang, S Zhou, X Liu, S Wang… - … on Neural Networks …, 2023 - ieeexplore.ieee.org
Contrastive learning has recently attracted plenty of attention in deep graph clustering due to
its promising performance. However, complicated data augmentations and time-consuming …

Bond: Benchmarking unsupervised outlier node detection on static attributed graphs

K Liu, Y Dou, Y Zhao, X Ding, X Hu… - Advances in …, 2022 - proceedings.neurips.cc
Detecting which nodes in graphs are outliers is a relatively new machine learning task with
numerous applications. Despite the proliferation of algorithms developed in recent years for …

Knowledge graph contrastive learning based on relation-symmetrical structure

K Liang, Y Liu, S Zhou, W Tu, Y Wen… - … on Knowledge and …, 2023 - ieeexplore.ieee.org
Knowledge graph embedding (KGE) aims at learning powerful representations to benefit
various artificial intelligence applications. Meanwhile, contrastive learning has been widely …

Better with less: A data-active perspective on pre-training graph neural networks

J Xu, R Huang, X Jiang, Y Cao… - Advances in …, 2023 - proceedings.neurips.cc
Pre-training on graph neural networks (GNNs) aims to learn transferable knowledge for
downstream tasks with unlabeled data, and it has recently become an active research area …

Mole-bert: Rethinking pre-training graph neural networks for molecules

J **a, C Zhao, B Hu, Z Gao, C Tan, Y Liu, S Li, SZ Li - 2023 - chemrxiv.org
Recent years have witnessed the prosperity of pre-training graph neural networks (GNNs)
for molecules. Typically, atom types as node attributes are randomly masked and GNNs are …