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- Title
Guidelines for appropriate use of BirdNET scores and other detector outputs.
- Authors
Wood, Connor M.; Kahl, Stefan
- Abstract
Machine learning tools capable of identifying animals by sound have proliferated, making the challenge of interpreting their outputs much more prevalent. These tools, like their predecessors, quantify prediction uncertainty with scores that tend to resemble probabilities but are actually unitless scores that are (generally) positively related to prediction accuracy in species-specific ways. BirdNET is one such tool, a freely available animal sound identification algorithm capable of identifying > 6,000 species, most of them birds. We describe two ways in which BirdNET "confidence scores"—and the output scores of other detector tools—can be used appropriately to interpret BirdNET results (reviewing them down to a user-defined threshold or converting them to probabilities), and provide a step-by-step tutorial to follow these suggestions. These suggestions are complementary to common performance metrics like precision, recall, and receiver operating characteristic. BirdNET can be a powerful tool for acoustic-based biodiversity research, but its utility depends on the careful use and interpretation of its outputs.
- Subjects
ANIMAL sounds; RECEIVER operating characteristic curves; IDENTIFICATION of animals; DETECTORS; IDENTIFICATION; MACHINE learning
- Publication
Journal of Ornithology, 2024, Vol 165, Issue 3, p777
- ISSN
2193-7192
- Publication type
Academic Journal
- DOI
10.1007/s10336-024-02144-5