Advances in Failure Detection and Diagnostic Strategies: Enhancing Reliability and Safety

A special issue of Computers (ISSN 2073-431X).

Deadline for manuscript submissions: 31 December 2025 | Viewed by 822

Special Issue Editor


E-Mail Website
Guest Editor
1. Instituto de Investigación Tecnológica, Universidad Pontificia Comillas (IIT-Comillas), 28015 Madrid, Spain
2. Cybersecurity at MIT Sloan (CAMS), Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, USA
Interests: failure detection; diagnosis; vibration analysis; digital image processing; advanced data analytics; artificial intelligence

Special Issue Information

Dear Colleagues,

With the proliferation of sensors, real-time data collection, and databases of maintenance actions, there has never been as much data available for monitoring, anomaly detection, diagnosis, prediction, failure of accident prevention, and for optimizing maintenance. All the data available, along with powerful tools based on machine learning and artificial intelligence for their analysis, significantly contribute to improvements in diagnosis in many different fields, as well as contributing to anticipating failures and reducing operating and maintenance costs. The benefits of these new analysis strategies help to avoid unexpected failures, improving the reliability and safety of systems while reducing costs related to unavailability and expensive unplanned repairs. In addition, monitoring, detection, diagnosis, and prediction can be applied to a variety of fields including medical diagnosis, telemedicine, signal processing, defect detection in materials, or education.

This Special Issue seeks articles that present and evaluate novel approaches of data acquisition and analysis, with the objective of improving diagnosis, preventing failures, optimizing maintenance, and minimizing costs. We also invite papers submissions that explore innovative technologies in this field.

Potential topics include the following:

  • Diagnostic strategies;
  • Incipient failure detection;
  • Reliability engineering;
  • Signal analysis for anomaly detection;
  • Medical diagnosis using soft computing techniques;
  • Telemedicine and remote monitoring;
  • Condition monitoring;
  • Prognostics and health management (PHM);
  • Reliability enhancement;
  • Accident prevention;
  • Fault-tolerant systems;
  • Defect detection on materials;
  • Data-driven maintenance;
  • AI and IoT;
  • Digital twins;
  • Prevention and detection of cyber attacks.

Dr. Rafael Palacios
Guest Editor

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. Computers 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 1800 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

  • incipient failure detection
  • diagnostic strategies
  • reliability engineering
  • anomaly detection
  • condition monitoring
  • prognostics and health management (PHM)
  • reliability enhancement
  • data-driven maintenance
  • AI and IoT
  • digital twins

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

21 pages, 793 KB  
Article
Beyond the Norm: Unsupervised Anomaly Detection in Telecommunications with Mahalanobis Distance
by Aline Mefleh, Michal Patryk Debicki, Ali Mubarak, Maroun Saade and Nathanael Weill
Computers 2025, 14(12), 561; https://doi.org/10.3390/computers14120561 - 17 Dec 2025
Viewed by 182
Abstract
Anomaly Detection (AD) in telecommunication networks is critical for maintaining service reliability and performance. However, operational networks present significant challenges: high-dimensional Key Performance Indicator (KPI) data collected from thousands of network elements must be processed in near real time to enable timely responses. [...] Read more.
Anomaly Detection (AD) in telecommunication networks is critical for maintaining service reliability and performance. However, operational networks present significant challenges: high-dimensional Key Performance Indicator (KPI) data collected from thousands of network elements must be processed in near real time to enable timely responses. This paper presents an unsupervised approach leveraging Mahalanobis Distance (MD) to identify network anomalies. The MD model offers a scalable solution that capitalizes on multivariate relationships among KPIs without requiring labeled data. Our methodology incorporates preprocessing steps to adjust KPI ratios, normalize feature distributions, and account for contextual factors like sample size. Aggregated anomaly scores are calculated across hierarchical network levels—cells, sectors, and sites—to localize issues effectively. Through experimental evaluations, the MD approach demonstrates consistent performance across datasets of varying sizes, achieving competitive Area Under the Receiver Operating Characteristic Curve (AUC) values while significantly reducing computational overhead compared to baseline AD methods: Isolation Forest (IF), Local Outlier Factor (LOF) and One-Class Support Vector Machines (SVM). Case studies illustrate the model’s practical application, pinpointing the Random Access Channel (RACH) success rate as a key anomaly contributor. The analysis highlights the importance of dimensionality reduction and tailored KPI adjustments in enhancing detection accuracy. This unsupervised framework empowers telecom operators to proactively identify and address network issues, optimizing their troubleshooting workflows. By focusing on interpretable metrics and efficient computation, the proposed approach bridges the gap between AD and actionable insights, offering a practical tool for improving network reliability and user experience. Full article
Show Figures

Graphical abstract

15 pages, 2871 KB  
Article
TD3 Reinforcement Learning Algorithm Used for Health Condition Monitoring of a Cooling Water Pump
by Miguel A. Sanz-Bobi, Inés Rodriguez, F. Javier Bellido-López, Antonio Muñoz, Javier Anguera, Daniel Gonzalez-Calvo and Tomas Alvarez-Tejedor
Computers 2025, 14(12), 540; https://doi.org/10.3390/computers14120540 - 9 Dec 2025
Viewed by 198
Abstract
In this paper, we describe the procedure of implementing a reinforcement learning algorithm, TD3, to learn the performance of a cooling water pump and how this type of learning can be used to detect degradations and evaluate its health condition. These types of [...] Read more.
In this paper, we describe the procedure of implementing a reinforcement learning algorithm, TD3, to learn the performance of a cooling water pump and how this type of learning can be used to detect degradations and evaluate its health condition. These types of machine learning algorithms have not been used extensively in the scientific literature to monitor the degradation of industrial components, so this study attempts to fill this gap, presenting the main characteristics of these algorithms’ application in a real case. The method presented consists of several models for predicting the expected evolution of significant behavior variables when no anomalies exist, showing the performance of different aspects of the pump. Examples of these variables are bearing temperatures or vibrations in different pump locations. All of the data used in this paper come from the SCADA system of the power plant where the cooling water pump is located. Full article
Show Figures

Graphical abstract

Back to TopTop