Symmetry and Asymmetry in Machine Learning: 2nd Edition

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Computer".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 374

Special Issue Editors


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Guest Editor
School of Mathematics and Information Science, Guangzhou University, Guangzhou 510006, China
Interests: neural networks; deep learning; machine learning; computer vision; natural language processing; stochastic optimization
Special Issues, Collections and Topics in MDPI journals
School of Mathematical Sciences, Dalian University of Technology, Dalian 116024, China
Interests: machine learning
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
School of Mathematics and Statistics, Northeast Normal University, Changchun 130024, China
Interests: neural networks; deep learning; machine learning; computer vision; natural language processing; stochastic optimization
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Machine learning focuses on the design and analysis of algorithms that enable computers to learn autonomously. It is widely applied across many fields, including image recognition, speech recognition, natural language processing, recommendation systems, classification, and prediction. This Special Issue aims to provide a platform for researchers to share their latest advances in neural networks and deep learning, as well as studies on the relationship between machine learning and symmetry and their applications to solving real-world problems.

Topics of interest for this Special Issue include, but are not limited to, the following:

  • Symmetry and asymmetry in novel architectures and algorithms for machine learning;
  • Faster and more robust methods for training deep models;
  • Advances in fuzzy neural networks, spiking neural networks, extreme learning machines, and support vector machines;
  • Machine learning applications in computer vision, speech recognition, natural language processing, and robotics;
  • Theoretical analysis of neural networks;
  • Transfer learning for deep learning systems;
  • Deep neural network optimization and regularization technology;
  • Deep learning for data analysis and prediction;
  • Adversarial machine learning and its applications;
  • Meta-learning and ensemble learning;
  • Symmetric and asymmetric neural networks.

We invite researchers to submit original research articles, reviews, and short communications related to the above topics. All submissions will undergo a rigorous peer review process, and accepted papers will be published in this Special Issue of Symmetry.

Dr. Qinwei Fan
Dr. Jie Yang
Prof. Dr. Dongpo Xu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Symmetry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • machine learning
  • deep learning
  • convolutional neural networks
  • spiking neural network
  • recurrent neural networks
  • graph neural network
  • long short-term memory
  • extreme learning machine
  • generative adversarial networks
  • reinforcement learning
  • clustering analysis
  • computer vision
  • natural language processing
  • time series analysis
  • model-based clustering modeling high-dimensional

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Published Papers (1 paper)

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Research

26 pages, 1796 KB  
Article
Failure-Aware Bidirectional Evolutionary Knowledge Assimilation with Dynamic Regulation for Adaptive Optimization
by Hongmei Shao, Rongguo Qu and Qinwei Fan
Symmetry 2026, 18(6), 902; https://doi.org/10.3390/sym18060902 - 25 May 2026
Abstract
Efficient exploitation of evolutionary knowledge while preserving population diversity remains a central challenge in optimization. Existing knowledge-learning evolutionary algorithms primarily rely on successful experiences, overlooking structural information embedded in failed search attempts. This asymmetric learning limits adaptability and may cause premature convergence in [...] Read more.
Efficient exploitation of evolutionary knowledge while preserving population diversity remains a central challenge in optimization. Existing knowledge-learning evolutionary algorithms primarily rely on successful experiences, overlooking structural information embedded in failed search attempts. This asymmetric learning limits adaptability and may cause premature convergence in high-dimensional landscapes. To address this issue, a failure-aware bidirectional evolutionary knowledge assimilation framework is developed within the honey badger optimization algorithm. Unsuccessful offspring are treated as negative knowledge carriers and transformed through symmetric adversarial reflection, enabling simultaneous extraction of positive and negative structural information. A time-dependent regulation mechanism dynamically adjusts knowledge assimilation intensity across evolutionary phases to balance exploration and exploitation. In addition, a continuous mutation spectrum transition strategy adaptively integrates Cauchy and Gaussian perturbations, facilitating smooth migration from global exploration to local refinement. Comprehensive experiments conducted on the CEC 2017 benchmark suite across 10, 30, and 50 dimensions validate the proposed framework, establishing a novel failure-aware bidirectional evolutionary learning paradigm for knowledge-driven optimization. The results demonstrate that our method achieves statistically significant and consistent performance improvements over classical baseline algorithms. Furthermore, its robustness and cross-domain adaptability are corroborated through successful application to a real-world constrained engineering problem: welded beam design. Full article
(This article belongs to the Special Issue Symmetry and Asymmetry in Machine Learning: 2nd Edition)
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