{ "n_samples": 1077, "k": 5, "temporal_window_s": 60.0, "knn_within_window_fraction": 0.16861653327941895, "random_baseline": 0.07726679742336273, "lift": 2.1822638511657715, "per_query_within_fraction_stdev": 0.18328286707401276, "verdict": "MODERATE: RSSI fingerprints work but with significant noise" }