Characterizing Vocal Repertoires—Hard vs. Soft Classification Approaches
Two-dimensional projections of memberships of calls belonging to the grunt (red), scream 1 (green), scream 2 (pink), weaning (yellow), and bark (blue) cluster. Every call is represented once (by closest and second closest cluster). Diagonal lines in the panels represent identical memberships. Spectrograms represent transitions from most typical call of cluster A to most typical call of cluster B with hybrids close to the joint cluster borders. Sound examples can be found in the supporting information.