Ensemble Learning for Graph Neural Networks
- URL: http://arxiv.org/abs/2310.14166v1
- Date: Sun, 22 Oct 2023 03:55:13 GMT
- Title: Ensemble Learning for Graph Neural Networks
- Authors: Zhen Hao Wong, Ling Yue, Quanming Yao
- Abstract summary: Graph Neural Networks (GNNs) have shown success in various fields for learning from graph-structured data.
This paper investigates the application of ensemble learning techniques to improve the performance and robustness of GNNs.
- Score: 28.3650473174488
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Graph Neural Networks (GNNs) have shown success in various fields for
learning from graph-structured data. This paper investigates the application of
ensemble learning techniques to improve the performance and robustness of Graph
Neural Networks (GNNs). By training multiple GNN models with diverse
initializations or architectures, we create an ensemble model named ELGNN that
captures various aspects of the data and uses the Tree-Structured Parzen
Estimator algorithm to determine the ensemble weights. Combining the
predictions of these models enhances overall accuracy, reduces bias and
variance, and mitigates the impact of noisy data. Our findings demonstrate the
efficacy of ensemble learning in enhancing GNN capabilities for analyzing
complex graph-structured data. The code is public at
https://github.com/wongzhenhao/ELGNN.
Related papers
- Harnessing Collective Structure Knowledge in Data Augmentation for Graph Neural Networks [25.12261412297796]
Graph neural networks (GNNs) have achieved state-of-the-art performance in graph representation learning.
We propose a novel approach, namely collective structure knowledge-augmented graph neural network (CoS-GNN)
arXiv Detail & Related papers (2024-05-17T08:50:00Z) - Loss-aware Curriculum Learning for Heterogeneous Graph Neural Networks [30.333265803394998]
This paper investigates the application of curriculum learning techniques to improve the performance of Heterogeneous Graph Neural Networks (GNNs)
To better classify the quality of the data, we design a loss-aware training schedule, named LTS, that measures the quality of every nodes of the data.
Our findings demonstrate the efficacy of curriculum learning in enhancing HGNNs capabilities for analyzing complex graph-structured data.
arXiv Detail & Related papers (2024-02-29T05:44:41Z) - DGNN: Decoupled Graph Neural Networks with Structural Consistency
between Attribute and Graph Embedding Representations [62.04558318166396]
Graph neural networks (GNNs) demonstrate a robust capability for representation learning on graphs with complex structures.
A novel GNNs framework, dubbed Decoupled Graph Neural Networks (DGNN), is introduced to obtain a more comprehensive embedding representation of nodes.
Experimental results conducted on several graph benchmark datasets verify DGNN's superiority in node classification task.
arXiv Detail & Related papers (2024-01-28T06:43:13Z) - GraphGLOW: Universal and Generalizable Structure Learning for Graph
Neural Networks [72.01829954658889]
This paper introduces the mathematical definition of this novel problem setting.
We devise a general framework that coordinates a single graph-shared structure learner and multiple graph-specific GNNs.
The well-trained structure learner can directly produce adaptive structures for unseen target graphs without any fine-tuning.
arXiv Detail & Related papers (2023-06-20T03:33:22Z) - DEGREE: Decomposition Based Explanation For Graph Neural Networks [55.38873296761104]
We propose DEGREE to provide a faithful explanation for GNN predictions.
By decomposing the information generation and aggregation mechanism of GNNs, DEGREE allows tracking the contributions of specific components of the input graph to the final prediction.
We also design a subgraph level interpretation algorithm to reveal complex interactions between graph nodes that are overlooked by previous methods.
arXiv Detail & Related papers (2023-05-22T10:29:52Z) - Simplifying approach to Node Classification in Graph Neural Networks [7.057970273958933]
We decouple the node feature aggregation step and depth of graph neural network, and empirically analyze how different aggregated features play a role in prediction performance.
We show that not all features generated via aggregation steps are useful, and often using these less informative features can be detrimental to the performance of the GNN model.
We present a simple and shallow model, Feature Selection Graph Neural Network (FSGNN), and show empirically that the proposed model achieves comparable or even higher accuracy than state-of-the-art GNN models.
arXiv Detail & Related papers (2021-11-12T14:53:22Z) - Improving Graph Neural Networks with Simple Architecture Design [7.057970273958933]
We introduce several key design strategies for graph neural networks.
We present a simple and shallow model, Feature Selection Graph Neural Network (FSGNN)
We show that the proposed model outperforms other state of the art GNN models and achieves up to 64% improvements in accuracy on node classification tasks.
arXiv Detail & Related papers (2021-05-17T06:46:01Z) - Scalable Graph Neural Networks for Heterogeneous Graphs [12.44278942365518]
Graph neural networks (GNNs) are a popular class of parametric model for learning over graph-structured data.
Recent work has argued that GNNs primarily use the graph for feature smoothing, and have shown competitive results on benchmark tasks.
In this work, we ask whether these results can be extended to heterogeneous graphs, which encode multiple types of relationship between different entities.
arXiv Detail & Related papers (2020-11-19T06:03:35Z) - Graph Contrastive Learning with Augmentations [109.23158429991298]
We propose a graph contrastive learning (GraphCL) framework for learning unsupervised representations of graph data.
We show that our framework can produce graph representations of similar or better generalizability, transferrability, and robustness compared to state-of-the-art methods.
arXiv Detail & Related papers (2020-10-22T20:13:43Z) - A Unified View on Graph Neural Networks as Graph Signal Denoising [49.980783124401555]
Graph Neural Networks (GNNs) have risen to prominence in learning representations for graph structured data.
In this work, we establish mathematically that the aggregation processes in a group of representative GNN models can be regarded as solving a graph denoising problem.
We instantiate a novel GNN model, ADA-UGNN, derived from UGNN, to handle graphs with adaptive smoothness across nodes.
arXiv Detail & Related papers (2020-10-05T04:57:18Z) - Graphs, Convolutions, and Neural Networks: From Graph Filters to Graph
Neural Networks [183.97265247061847]
We leverage graph signal processing to characterize the representation space of graph neural networks (GNNs)
We discuss the role of graph convolutional filters in GNNs and show that any architecture built with such filters has the fundamental properties of permutation equivariance and stability to changes in the topology.
We also study the use of GNNs in recommender systems and learning decentralized controllers for robot swarms.
arXiv Detail & Related papers (2020-03-08T13:02:15Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.