Personal profile
Research Interests
The researcher’s work centers on proactive condition monitoring and fault detection in industrial systems, with a strong emphasis on machine learning, data-driven analytics, and scalable implementations. Across publications, the core themes include one-class learning for fault detection under limited labeled data, time-series and vibration signal analysis for health assessment, and practical architectures (including serverless and cloud-enabled solutions) to enable online or near-real-time monitoring. Methodologies combine unsupervised and semi-supervised learning (autoencoders, GANs, one-class SVM), frequency-domain analysis (FFT) of motor currents and vibration signals, and deployment perspectives that integrate agile design thinking with industry collaboration. The impact lies in demonstrating robust fault detection under data scarcity, illustrating how spectral features and learned representations correlate with fault severity, and proving scalable, industry-relevant architectures for continuous condition monitoring and early maintenance actions.
Key Topics:
- Artificial Intelligence, Machine Learning & Data Science
- Manufacturing Systems, Maintenance, Reliability & Predictive Maintenance (PHM)
- Sensors, Instrumentation & Measurement Systems
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Collaborations and top research areas from the last five years
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Evaluation of functional properties of condition indicators in high-resolution severity classification for fault diagnosis in gearboxes
Montesdeoca Contreras, J. C. (Col), Sanchez Loja, R. V. (Col), Villacis Marin, M. L. (Col) & Guaman Buestan, A. D. P. (PI)
2/02/26 → …
Project: Research and Development
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Evaluation of the discriminative capacity of multisensor signals for multi-label classification of simple, multi-fault, and compound faults in rotating machinery
Pinos Velez, E. G. (Col), Sanchez Loja, R. V. (Col), Perez Torres, J. A. (Col), Villacis Marin, M. L. (Col) & Orozco Tupacyupanqui, W. H. (PI)
2/02/26 → …
Project: Research and Development
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CRICKETHUB: Advanced Technology for the Integral Improvement of the Rearing and Nutritional Value of Domestic Crickets (Gryllus aff. assimilis) within Closed Environments in the Ecuadorian Sierra
Sanchez Loja, R. V. (Col), Villacis Marin, M. L. (Col), Huerta, M. (PI), Cerrada Lozada, M. (PI) & Jimenez Santin, D. P. (Student)
18/12/24 → …
Project: Research and Development
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Data-Driven Anomaly Detectors for Time Series Data and Big Data (DD-ANDET)
Sanchez Loja, R. V. (PI), Cabrera Mendieta, D. R. (Col), Villacis Marin, M. L. (Col) & Cerrada Lozada, M. (PI)
18/01/24 → …
Project: Research and Development
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SEWER-SEER: Robotic Computer Vision System for the Diagnosis of Sewer Pipes using Artificial Intelligence for the Department of Drinking Water and Sanitation of the Intercultural GAD of the Cañar Canton
Sanchez Loja, R. V. (PI), Cabrera Mendieta, D. R. (PI), Villacis Marin, M. L. (Col), Cerrada Lozada, M. (Col), Chacon Cherrez, D. S. (External) & Romero Torres, R. A. (Student)
30/11/23 → …
Project: Research and Development
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Four-Phase University-Municipal Technology Transfer Framework: Validated Quadruple Helix Implementation in Developing Countries
Sanchez Loja, R. V., Cerrada, M., Jiménez Santín, D., Villacís, M., Cabrera, D. & Huerta, M., 2025, ETCM 2025 - 9th Ecuador Technical Chapters Meeting. Institute of Electrical and Electronics Engineers Inc., (ETCM 2025 - 9th Ecuador Technical Chapters Meeting).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
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Comparative Analysis of Autoencoder and Contrastive One-Class Anomaly Detection in Reciprocating Compressors
Villacís, M., Cabrera, D., Sánchez, R. V., Cerrada, M., Li, C. & Long, J., 2024, ICSMD 2024 - 5th International Conference on Sensing, Measurement and Data Analytics in the Era of Artificial Intelligence. Institute of Electrical and Electronics Engineers Inc., (ICSMD 2024 - 5th International Conference on Sensing, Measurement and Data Analytics in the Era of Artificial Intelligence).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
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Serverless Architecture for Online Fault Detection in a Vertical Shaft Multistage Centrifugal Pump
Villacís, M. L., Cabrera, D., Sánchez, R. V. & Cerrada, M., 2023, Lecture Notes on Data Engineering and Communications Technologies. Springer Science and Business Media Deutschland GmbH, p. 507-512 6 p. (Lecture Notes on Data Engineering and Communications Technologies; vol. 160).Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
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Adversarial Fault Detector Guided by One-Class Learning for a Multistage Centrifugal Pump
Cabrera, D., Villacis, M., Cerrada, M., Sanchez, R. V., Li, C., Sancho, F., Long, J. & Estupinan, E., 2022, (Accepted/In press) In: IEEE/ASME Transactions on Mechatronics. 28, 3, p. 1-9 9 p.Research output: Contribution to journal › Article › peer-review
16 Link opens in a new tab Scopus citations -
Combining Design Thinking and Agile to Implement Condition Monitoring System: A Case Study on Paper Press Bearings
Sánchez, R. V., Siguencia, J. F., Villacís, M., Cabrera, D., Cerrada, M. & Heredia, F., 1 Jul 2022, In: IFAC-PapersOnLine. 55, 19, p. 187-192 6 p.Research output: Contribution to journal › Conference article › peer-review
Open Access6 Link opens in a new tab Scopus citations