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Advancements and Challenges in NLP and Linguistic Text-Mining: Techniques, Applications, and Ethical Considerations

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

Deadline for manuscript submissions: closed (15 February 2026) | Viewed by 1848

Special Issue Editors


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Guest Editor
Department of Business Science and Management & Innovation Systems, University of Salerno, Via San Giovanni Paolo II, 132, 84084 Fisciano, Italy
Interests: NLP; text mining; algorithm theory; bin-packing; approximation algorithms

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Guest Editor
Department of Management and Innovation Systems, University of Salerno, 84084 Fisciano, SA, Italy
Interests: NLP; (temporal) formal concept analysis; fuzzy cognitive maps; semantic web; multi-agent systems; intelligent tutoring systems

E-Mail Website
Guest Editor
Dipartimento di Scienze Aziendali, Management & Innovation Systems, Università degli Studi di Salerno, 132, 84084 Fisciano, Italy
Interests: semantic web; fuzzy logic; knowledge extraction; decision making; social media analytics
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Political and Communication Sciences, University of Salerno, Via San Giovanni Paolo II, 132, 84084 Fisciano, Italy
Interests: rule-based NLP; lexicon-grammar; formal semantics; linguistic linked data; linguistic ontologies; knowledge automatic representation; artificial intelligence

Special Issue Information

Dear Colleagues,

Advances in Artificial Intelligence (AI) and deep learning (DL) are transforming how Natural Language Processing (NLP) and Information Retrieval (IR) tasks are performed. Techniques such as transformers and large-scale language models have revolutionized our ability to process, understand, and generate human language, while also exposing new vulnerabilities. NLP remains highly relevant, as it is one of the most accessible and popular methods of communicating with machines. IR has also garnered renewed interest, driven by new methods designed to support reasoning architectures.

This Special Issue explores a broad spectrum of topics, from fundamental techniques such as keyword extraction and topic modeling to advanced approaches involving linguistic text mining, deep learning, and neural networks.

Key areas of focus include information extraction, topic modeling, sentiment analysis, and the challenges associated with multilingual and cross-lingual processing, as well as Retrieval-Augmented Generation. This Special Issue also addresses ethical considerations such as bias, fairness, interpretability, and transparency in NLP systems. Contributions that investigate real-world applications in domains such as healthcare, law, and finance, where NLP and text mining are having a transformative impact, are particularly welcome.

By combining fundamental research with practical applications, this issue aims to offer a comprehensive overview of current challenges, emerging techniques, and future directions in the fields of NLP and IR.

The following is a list of the main topics covered by this Special Issue:

  • Conversational AI and Dialogue Systems;
  • Deep Learning and Transformer Models in NLP;
  • Ethics, Bias, and Fairness in NLP;
  • Information Extraction;
  • Linguistic Text Mining;
  • Multilingual and Cross-lingual NLP;
  • Natural Language Understanding and Question Answering;
  • NLP Applications in Specialized Domains;
  • Pretrained Language Models and Transfer Learning;
  • Text Classification and Sentiment Analysis;
  • Text Mining in Information Retrieval;
  • Topic Modeling and Document Clustering.

Dr. Alberto Postiglione
Dr. Francesco Orciuoli
Dr. Giuseppe Fenza
Dr. Mario Monteleone
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

  • natural language processing (NLP)
  • linguistic text mining
  • information extraction
  • text classification
  • sentiment analysis
  • information retrieval

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Published Papers (2 papers)

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Research

31 pages, 1936 KB  
Article
A Multi-Scale Heterogeneous Graph Attention Network for Nested Named Entity Recognition with Syntactic and Dependency Tree Structures
by Yifan Zhao, Lin Zhang and Yangshuyi Xu
Electronics 2026, 15(6), 1183; https://doi.org/10.3390/electronics15061183 - 12 Mar 2026
Viewed by 331
Abstract
Nested Named Entity Recognition (nested NER) frequently encounters challenges like boundary conflicts, complications in modeling long-distance dependencies, and inadequate representation of deep nested semantics resulting from overlapping spans and hierarchical inclusion relationships of entities. This research presents a multi-scale heterogeneous graph attention network [...] Read more.
Nested Named Entity Recognition (nested NER) frequently encounters challenges like boundary conflicts, complications in modeling long-distance dependencies, and inadequate representation of deep nested semantics resulting from overlapping spans and hierarchical inclusion relationships of entities. This research presents a multi-scale heterogeneous graph attention network to facilitate end-to-end recognition of nested entities through the collaborative modeling of structure and semantics. The model initially presents the structural integration mechanism, which consolidates the hierarchical restrictions of the syntactic tree and the inter-word relationships of the dependency tree within a singular heterogeneous graph space. It subsequently generates 1/2/3-hop multi-scale subgraphs and employs multi-scale subgraph attention to adaptively integrate information from various structural receptive fields, harmonizing the local cues of shallow entities with the global dependencies of deep entities. The experimental findings on the ACE2004, ACE2005, and GENIA benchmark datasets indicate that the proposed method surpasses several robust baselines regarding overall performance and nested entity recognition, particularly exhibiting notable advantages in identifying long entities and low-frequency entities. We further evaluate MHGAT on KBP2017 and GermEval2014 to validate generalization across datasets and languages. Full article
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14 pages, 1280 KB  
Article
DMBT Decoupled Multi-Modal Binding Transformer for Multimodal Sentiment Analysis
by Rui Guo, Gu Gong and Fan Jiang
Electronics 2025, 14(21), 4296; https://doi.org/10.3390/electronics14214296 - 31 Oct 2025
Cited by 1 | Viewed by 797
Abstract
The performance of Multimodal Sentiment Analysis (MSA) is commonly hindered by two major bottlenecks: the complexity and redundancy associated with supervised feature disentanglement and the coarse granularity of static fusion mechanisms. To systematically address these challenges, a novel framework, the Decoupled Multi-modal Binding [...] Read more.
The performance of Multimodal Sentiment Analysis (MSA) is commonly hindered by two major bottlenecks: the complexity and redundancy associated with supervised feature disentanglement and the coarse granularity of static fusion mechanisms. To systematically address these challenges, a novel framework, the Decoupled Multi-modal Binding Transformer (DMBT), is proposed. The framework first introduces an Unsupervised Semantic Disentanglement (USD) module, which resolves the issue of complex redundancy by cleanly separating features into modality-common and modality-specific components in a lightweight, parameter-free manner. Subsequently, to tackle the challenge of coarse-grained fusion, a Gated Interaction and Fusion Transformer (GIFT) is constructed as the core engine. The exceptional performance of GIFT is driven by two synergistic components. The first is a Multi-modal Binding Transposed Attention (MBTA) that employs a hybrid convolutional and attention model to concurrently perceive both global context and local fine-grained features, and then a Dynamic Fusion Gate (DFG) that performs final, adaptive decision-making by re-weighting all deeply enhanced representations. Extensive experiments on the CMU-MOSI and CMU-MOSEI benchmarks demonstrate that the proposed DMBT framework surpasses existing state-of-the-art models across all key evaluation metrics. The efficacy of each innovative component is further validated through comprehensive ablation studies. Full article
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