Table 1 FAST input parameters.

These were used for detection in synthetic data (except the event detection threshold) and in 1 week of CCOB.EHN data.

FAST parameterValue
Time series window length for spectrogram generation200 samples (10 s)
Time series window lag for spectrogram generation2 samples (0.1 s)
Spectral image window length100 samples (10 s)
Spectral image window lag = fingerprint sampling period10 samples (1 s)
Number of top k amplitude standardized Haar coefficients800
LSH: number of hash functions per hash table r5
LSH: number of hash tables b100
Initial pair threshold: number v (fraction) of tables, pair in same bucket4 (4/100 = 0.04)
Event detection threshold: number v (fraction) of tables, pair in same bucket19 (19/100 = 0.19)
Similarity search: near-repeat exclusion parameter5 samples (5 s)
Near-duplicate pair and event elimination time window21 s
Autocorrelation and catalog comparison time window19 s