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About this paper
Nico García-Peguinho, David Kelly, Fabrizio Smeraldi, Anna Xambó Sedó
The authors measure how spectrogram fills affect audio classifiers’ outputs under partial masking. They compare each masked input’s 527-class logit vector with outputs for fully occluded and original clips, separating movement along that reference direction from perpendicular movement. Across three fills and three classifiers, mean perpendicular displacement is 41–77% of total; this diagnoses output geometry, not attribution faithfulness.
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