Author

Seungmin Han

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Preprint Aug 2026

Structured Frequency-Domain Evidence for LLM-Based Time-Series Anomaly Detection

This work proposes an evidence-augmented zero-shot TSAD framework that preserves indexed de-seasonalized observations while adding compact frequency-domain evidence computed with the Fast Fourier Transform (FFT).

Jun Seo, Sangwon Son, Minjeong Kim et al. · 0 citations