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Chaos-based two-stage framework for abnormal ship behavior identification using AIS data
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DOI：10.1016/j.oceaneng.2026.125709.png)
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Abstract
En 中文
• Two-stage AIS framework links chaos screening with XTD control monitoring. • Multivariate 0-1 test, LLE, and phase space evidence support interpretability. • Gap controlled segmentation and 60 s resampling support stable window analysis. • XTD derivatives and window statistics reveal early control degradation. • Localized abnormal dynamics near the incident period support risk monitoring.
Keywords:
Chaos-based framework
AIS data
Abnormal ship behavior
XTD control monitoring
Multivariate analysis
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