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Continuous-time systems have continuous input and output signals, with time measured continuously. These systems are generally defined by differential or algebraic equations. For instance, in an RC circuit, the relationship between input and output voltage is expressed through a differential equation derived from Ohm's law and the capacitor relation,
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Cross-Modal Multivariate Pattern Analysis
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Multi-grained contrastive-learning driven MLPs for node classification.

Qi Bao1, Xiyu Huang1, Wenbin Zhuang1

  • 1Guangxi Academy Science of Industry-University-Research, Nanning, 530200, China.

Scientific Reports
|October 8, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces Multi-Layer Perceptrons (MLPs) with contrastive learning for node classification, outperforming Graph Neural Networks (GNNs). The new method offers better accuracy, faster speeds, and lower memory use for graph analysis.

Keywords:
Contrastive learningGraph neural networksMulti-layer perceptronsNode classification

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Area of Science:

  • Machine Learning
  • Graph Analytics
  • Artificial Intelligence

Background:

  • Graph Neural Networks (GNNs) are standard for node classification but face computational and memory challenges.
  • GNN limitations hinder real-world applicability, especially in resource-limited settings.

Purpose of the Study:

  • To develop a more efficient and accurate node classification method.
  • To overcome the limitations of GNNs using alternative architectures and learning paradigms.

Main Methods:

  • Leveraging contrastive learning within Multi-Layer Perceptrons (MLPs).
  • Incorporating three contrastive learning strategies to capture local and global graph structures.
  • Comparing MLP performance against traditional GNNs on benchmark datasets.

Main Results:

  • MLPs with contrastive learning achieved higher classification accuracy than GNNs.
  • The proposed method demonstrated superior inference speed.
  • Lower memory consumption was observed compared to GNNs.

Conclusions:

  • Contrastive learning-enhanced MLPs present a viable and efficient alternative to GNNs for node classification.
  • This approach addresses key limitations of GNNs, improving practicality for real-world applications.