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High-Dimensional Change Point Detection via Graph Spanning Ratio
[Submitted on 8 Dec 2025 (v1), last revised 2 Jul 2026 (this ver · 2025-12-08 · via stat updates on arXiv.org

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Abstract:Inspired by graph-based methodologies, we introduce a novel graph-spanning algorithm designed to identify changes in both offline and online data across low to high dimensions. This versatile approach is applicable to Euclidean and graph-structured data with unknown distributions, while maintaining control over error probabilities. Theoretically, we demonstrate that the algorithm achieves high detection power when the magnitude of the change surpasses the lower bound of the minimax separation rate, which scales on the order of $\sqrt{nd}$. Our method outperforms other techniques in terms of accuracy for both Gaussian and non-Gaussian data. Notably, it maintains strong detection power even with small observation windows, making it particularly effective for online environments where timely and precise change detection is critical.

Submission history

From: Katerina Papagiannouli [view email]
[v1] Mon, 8 Dec 2025 13:22:25 UTC (5,965 KB)
[v2] Thu, 8 Jan 2026 14:48:01 UTC (5,967 KB)
[v3] Thu, 2 Jul 2026 13:34:12 UTC (6,018 KB)