New Trends in Representation Learning

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Computer Science & Engineering".

Deadline for manuscript submissions: 15 April 2026 | Viewed by 394

Special Issue Editors


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Guest Editor
School of Information and Software Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
Interests: machine learning; computer vision; multimedia

E-Mail Website
Guest Editor
School of Computing and Artificial Intelligence, Southwestern University of Finance and Economics, Chengdu 611130, China
Interests: machine learning; representation learning
School of Information and Software Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
Interests: machine learning; computer vision; representation learning

Special Issue Information

Dear Colleagues,

Representation learning stands at the forefront of artificial intelligence research, driving paradigm shifts across domains ranging from natural language processing to biomedical informatics. The rapid evolution of self-supervised learning, multimodal fusion, and geometric deep learning has unlocked unprecedented capabilities in extracting hierarchical patterns from complex data. However, fundamental challenges persist in scalability, interpretability, and cross-domain generalization, necessitating novel methodologies to bridge these gaps.

This Special Issue of Electronics seeks to explore cutting-edge advances that redefine how machines capture and utilize semantic, structural, and causal representations. We focus on architectures that transcend traditional feature engineering, enabling autonomous discovery of transferable knowledge across modalities and tasks—a capability that is critical for real-world applications in healthcare, robotics, and scientific discovery.

We invite original research and comprehensive reviews that address topics including (but not limited to) the following themes:

  1. Fundamental representation learning: self-supervised and contrastive learning, disentangled representation learning, and causal representation learning;
  2. Graph representation learning;
  3. Generative and adversarial representation learning;
  4. Efficient and lightweight representations;
  5. Representation learning for transfer learning and domain adaptation;
  6. Representation learning for interpretable machine learning;
  7. Representation learning for cross-modal learning;
  8. Representation learning in other domains, e.g., recommender systems, cybersecurity, natural language processing, and Large Language Models.

We look forward to receiving your contributions.

Dr. Mengmeng Jing
Dr. Liangjian Wen
Dr. Ye Li
Guest Editors

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Keywords

  • representation learning
  • self-supervised learning
  • transfer learning
  • cross-modal learning
  • interpretable representation learning
  • graph representation learning
  • causal representation learning
  • adversarial learning

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Published Papers (1 paper)

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Research

22 pages, 441 KB  
Article
Domain Knowledge-Enhanced LLMs for Fraud and Concept Drift Detection
by Ali Şenol, Garima Agrawal and Huan Liu
Electronics 2026, 15(3), 534; https://doi.org/10.3390/electronics15030534 - 26 Jan 2026
Viewed by 192
Abstract
Deceptive and evolving conversations on online platforms threaten trust, security, and user safety, particularly when concept drift obscures malicious intent. Large Language Models (LLMs) offer strong natural language reasoning but remain unreliable in risk-sensitive scenarios due to contextual ambiguity and hallucinations. This article [...] Read more.
Deceptive and evolving conversations on online platforms threaten trust, security, and user safety, particularly when concept drift obscures malicious intent. Large Language Models (LLMs) offer strong natural language reasoning but remain unreliable in risk-sensitive scenarios due to contextual ambiguity and hallucinations. This article introduces a domain knowledge-enhanced Dual-LLM framework that integrates structured cues with pretrained models to improve fraud detection and drift classification. The proposed approach achieves 98% accuracy on benchmark datasets, significantly outperforming zero-shot LLMs and traditional classifiers. The results highlight how domain-grounded prompts enhance both accuracy and interpretability, offering a trustworthy path for applying LLMs in safety-critical applications. Beyond advancing the state of the art in fraud detection, this work has the potential to benefit domains such as cybersecurity, e-commerce, financial fraud prevention, and online content moderation. Full article
(This article belongs to the Special Issue New Trends in Representation Learning)
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