CPC G06N 20/00 (2019.01) [G06F 17/16 (2013.01); G06F 18/2115 (2023.01); G06F 18/2133 (2023.01); G06F 18/2135 (2023.01); G06N 7/01 (2023.01)] | 28 Claims |
1. A method, comprising:
with a computer system:
performing a plurality of non-negative matrix factorization (NMF) trials on mixed signals generated by one or more unidentified sources and detected by a plurality of sensors, each of the NMF trials producing a predetermined number b of candidate sources referred to each of the sensors according to a signal propagation model;
for each of the NMF trials, ranking the corresponding b candidate sources according respective magnitudes of the corresponding b candidate sources; and
determining b basis sources for the mixed signals by:
for each index d from 1 to b, determining the dth basis source as an average, across the plurality of NMF trials, of the candidate sources having dth rank.
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