Data Mining and Recommender Systems

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Artificial Intelligence".

Deadline for manuscript submissions: 15 April 2026 | Viewed by 2946

Special Issue Editors


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Guest Editor
Computer Science Department, Jinan University, Guangzhou 510632, China
Interests: multimodal learning; recommendation system; representation learning

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Guest Editor
School of Information Science and Technology, Guangdong University of Foreign Studies, Guangzhou 510006, China
Interests: natural language processing; sentiment analysis; machine translation

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Guest Editor
School of Computer Science, South China Normal University, Guangzhou 510631, China
Interests: data mining; cognitive computing; recommendation system

Special Issue Information

Dear Colleagues,

Focus:

This Special Issue will spotlight the synergies between advanced data-mining techniques and next-generation recommender-system research. Emphasis will be placed on (i) novel mining methods that address the scale, heterogeneity, and dynamics of modern interaction data, and (ii) recommender architectures that translate mined patterns into actionable, trustworthy, and fair recommendations.

Scope:

This issue welcomes original contributions that span—but are not limited to—the following domains:

  • Deep learning and graph-mining approaches for collaborative filtering, content-based, and hybrid recommendation;
  • Explainable, causal, and counterfactual mining for transparent recommendation;
  • Privacy-preserving and federated mining in recommendation system;
  • Real-time and streaming-data mining for dynamic recommendations;
  • Cross-domain, cross-lingual, and multimodal data mining for recommendation diversity;
  • Evaluation, benchmark, and reproducibility studies that integrate data-mining insights with recommendation metrics;
  • Industrial case studies and open-source toolkits that bridge mining theory and deployment practice.

Purpose:

This Special Issue aims to consolidate cutting-edge research that positions recommendation systems as both consumers and producers of data-mining knowledge. By doing so, it seeks to

  • Establish common methodological ground for researchers in data mining and recommendation systems;
  • Accelerate the translation of mining innovations into scalable, interpretable, and responsible recommendation solutions;
  • Provide a forward-looking agenda that identifies open challenges and emerging opportunities at the intersection of the two fields.

A Useful Supplement to the Existing Literature:

While numerous surveys and journals have treated data mining and recommendation systems in isolation, this issue is the first to curate integrative studies that explicitly exploit mining advances to rethink recommendation design and vice versa. Specifically, it supplements the existing literature by

  • Bridging the terminological and experimental divide between the KDD and RecSys communities through unified frameworks and shared benchmarks;
  • Highlighting under-explored yet critical topics—such as fairness, privacy, and explainability—that demand joint attention from both fields;
  • Disseminating reproducible artifacts (datasets, code, and evaluation protocols) that extend static benchmarks like MovieLens and Amazon Reviews to dynamic, multimodal, and federated settings;
  • Offering industrial perspectives that reveal how large-scale mining pipelines overcome real-world bottlenecks in latency, sparsity, and concept drift—insights rarely captured in purely academic venues.

Overall, this Special Issue will serve as a timely, one-stop reference that not only synthesizes the current state of the art but also charts a research roadmap for the next decade of data-driven recommendation.

Prof. Dr. Quanlong Guan
Prof. Dr. Lianxi Wang
Dr. Zhengyang Wu
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. Electronics is an international peer-reviewed open access semimonthly 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

  • multimodal learning
  • deep learning for recommendation
  • graph mining
  • privacy-preserving recommendation
  • fairness in recommendation
  • recommendation system

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Published Papers (2 papers)

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Research

33 pages, 5023 KB  
Article
Recommender Systems: Emerging Trends from Four Decades of Research Using Bibliometric Analysis and Transformer-Based Models
by Simona-Vasilica Oprea, Adela Bâra and Tudor Ghinea
Electronics 2026, 15(4), 763; https://doi.org/10.3390/electronics15040763 - 11 Feb 2026
Viewed by 434
Abstract
Recommender systems represent an essential infrastructure for digital platforms. To understand their evolution, we analyze 15,944 Web of Science publications (1980–2025) using bibliometric techniques, generative and transformer models for sentiment analysis and latent topic modeling. Our analysis yields three major findings. First, e-commerce [...] Read more.
Recommender systems represent an essential infrastructure for digital platforms. To understand their evolution, we analyze 15,944 Web of Science publications (1980–2025) using bibliometric techniques, generative and transformer models for sentiment analysis and latent topic modeling. Our analysis yields three major findings. First, e-commerce recommendation research exhibits rapid growth in advanced representation techniques, with compound annual growth rates for contrastive learning (187%), graph neural networks (89%) and federated learning (72%). Second, algorithmic fairness and privacy preservation have emerged as critical research directions. Third, collaborative networks indicate a geographical shift, with Asia–Pacific regions becoming influential research hubs. The methodology integrates CAGR analysis with Latent Dirichlet Allocation (LDA, coherence score = 0.687) and BERTopic for thematic mapping and network analysis. Additionally, we employ sentiment analysis (VADER, TextBlob and a sentiment analysis pipeline from Hugging Face Transformers) and temporal heatmaps to capture research narratives. Topic modeling with LDA identifies five core themes: (1) Collaborative Filtering; (2) Machine Learning and Educational Systems; (3) Web Services and Business Applications; (4) Content and Multimedia Recommendations; (5) Graph Neural Networks and Advanced Models. BERTopic provides eight more nuanced themes based on semantics. Citation patterns follow the Pareto principle, where the top 1% of articles account for 29.1% of all citations, confirming a highly skewed impact distribution. Notably, established keywords show declining trajectories, indicating a methodological evolution toward newer, deep learning and generative AI-based paradigms. Full article
(This article belongs to the Special Issue Data Mining and Recommender Systems)
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20 pages, 1296 KB  
Article
Learning Path Recommendation Enhanced by Knowledge Tracing and Large Language Model
by Yunxuan Lin and Zhengyang Wu
Electronics 2025, 14(22), 4385; https://doi.org/10.3390/electronics14224385 - 10 Nov 2025
Viewed by 2256
Abstract
With the development of large language model (LLM) technology, AI-assisted education systems are gradually being widely used. Learning Path Recommendation (LPR) is an important task in personalized instructional scenarios. AI-assisted LPR is gaining traction for its ability to generate learning content based on [...] Read more.
With the development of large language model (LLM) technology, AI-assisted education systems are gradually being widely used. Learning Path Recommendation (LPR) is an important task in personalized instructional scenarios. AI-assisted LPR is gaining traction for its ability to generate learning content based on a student’s personalized needs. However, the native-LLM has the problem of hallucination, which may lead to the inability to generate learning content; in addition, the evaluation results of the LLM on students’ knowledge status are usually conservative and have a large margin of error. To address these issues, this work proposes a novel approach for LPR enhanced by knowledge tracing (KT) and LLM. Our method operates in a “generate-and-retrieve” manner: the LLM acts as a pedagogical planner that generates contextual reference exercises based on the student’s needs. Subsequently, a retrieval mechanism constructs the concrete learning path by retrieving the top-N most semantically similar exercises from an established exercise bank, ensuring the recommendations are both pedagogically sound and practically available. The KT plays the role of an evaluator in the iterative process. Rather than generating semantic instructions directly, it provides a quantitative and structured performance metric. Specifically, given a candidate learning path generated by the LLM, the KT model simulates the student’s knowledge state after completing the path and computes a knowledge promotion score. This score quantitatively measures the effectiveness of the proposed path for the current student, thereby guiding the refinement of subsequent recommendations. This iterative interaction between the KT and the LLM continuously refines the candidate learning items until an optimal learning path is generated. Experimental validations on public datasets demonstrate that our model surpasses baseline methods. Full article
(This article belongs to the Special Issue Data Mining and Recommender Systems)
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