Cited by 19Seismology and Earthquake StudiesHydraulic Fracturing and Reservoir AnalysisGeotechnical and Geomechanical Engineering

Data-Driven Signal–Noise Classification for Microseismic Data Using Machine Learning

Open access
Kim, Sungil, Yoon, Byungjoon, Lim, Jung-Tek, Kim, Myungsun·2021·Energies

Abstract

It is necessary to monitor, acquire, preprocess, and classify microseismic data to understand active faults or other causes of earthquakes, thereby facilitating the preparation of early-warning earthquake systems. Accordingly, this study proposes the application of machine learning for signal–noise classification of microseismic data from Pohang, South Korea. For the first time, unique microseismic data were obtained from the monitoring system of the borehole station PHBS8 located in Yongcheon-ri, Pohang region, while hydraulic stimulation was being conducted. The collected data were properly preprocessed and utilized as training and test data for supervised and unsupervised learning methods: random forest, convolutional neural network, and K-medoids clustering with fast Fourier transform. The supervised learning methods showed 100% and 97.4% of accuracy for the training and test data, respectively. The unsupervised method showed 97.0% accuracy. Consequently, the results from machine learning validated that automation based on the proposed supervised and unsupervised learning applications can classify the acquired microseismic data in real time.

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Crossref · 10.3390/en14051499

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  • AI has emerged as a crucial tool for signal processing and noise reduction in wearable devices by identifying patterns in sensor data, detecting anomalies, and distinguishing between signal and noise.

    “AI has emerged as a crucial tool for signal processing and noise reduction in wearable devices by identifying patterns in sensor data, detecting anomalies, and distinguishing between signal and noise [200,201].”

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Authors
Kim, S., Yoon, B., Lim, J.-T., & Kim, M.
Affiliations
  • Korea Institute of Geoscience and Mineral Resources (KR)
  • SmartMind, Inc., C-201, 47 Maeheon-ro 8-gil, Seocho-gu, Seoul 06770, Korea
Corresponding author
Yoon, Byungjoon
Venue
Energies
Publisher
MDPI AG
Published
2021-03-09
Volume
14
Issue
5
Pages
1499
ISSN
1996-1073 (ISSN-L)
OpenAlex
W3135224336
Cited by
19
References
57
Citations by year
2025: 4 · 2024: 3 · 2023: 6 · 2022: 5 · 2021: 1
FWCI
1.33
Type
journal article
Language
en
Open access
Locations
  • Energies (publishedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Korea Institute of Geoscience and Mineral Resources (GP2020-025)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Seismology and Earthquake Studies
  • Physical Sciences › Engineering › Mechanical Engineering › Hydraulic Fracturing and Reservoir Analysis
  • Physical Sciences › Engineering › Mechanics of Materials › Geotechnical and Geomechanical Engineering
Keywords
microseismic data, hydraulic stimulation, borehole monitoring, earthquake early warning, random forest, convolutional neural networks, K-medoids clustering, fast Fourier transform, real-time classification, Pohang

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