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Comparative study of multiple machine learning algorithms for risk level prediction in goaf.

Bin Zhang1, Shaohua Hu1, Moxiao Li1

  • 1School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan, Hubei, 430070, China.

Heliyon
|August 28, 2023
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Summary
This summary is machine-generated.

This study developed an optimized machine learning model for predicting underground mine goaf risks. The Extra Tree algorithm accurately identifies high-risk goaf areas, enhancing mine safety.

Keywords:
Data classificationData processingMachine learningMine safetyRisk prediction

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Area of Science:

  • Mining Engineering
  • Geotechnical Engineering
  • Machine Learning Applications

Background:

  • Goaf areas pose significant risks to underground mine safety.
  • Rapid and accurate risk assessment of goaf is crucial for preventing accidents.
  • Existing evaluation methods may suffer from index redundancy.

Purpose of the Study:

  • To optimize feature parameters for goaf risk level prediction.
  • To identify the most effective machine learning algorithm for goaf risk assessment.
  • To develop a rapid and accurate goaf risk prediction model.

Main Methods:

  • Correlation analysis and feature importance were used for feature selection.
  • Multiple machine learning algorithms were applied to 121 sets of goaf data.
  • Model performance was evaluated using accuracy and kappa coefficient.

Main Results:

  • The optimal feature parameter combination included ground-water, goaf layout, volume of goaf, span-height ratio, and mining disturbance.
  • The Extra Tree (ET) algorithm achieved the highest prediction accuracy.
  • The ET model demonstrated a 94% accuracy in goaf risk level prediction.

Conclusions:

  • Optimized feature selection and the Extra Tree algorithm provide an effective solution for goaf risk prediction.
  • The developed model enables quick and accurate assessment of goaf risks, improving mine safety.
  • This approach addresses the challenge of index redundancy in goaf risk evaluation.