Validating two geospatial models of continental-scale environmental sound levels
| Autor: | Katrina Pedersen, Michael M. James, Alexandria R. Salton, Shane V. Lympany, Mark K. Transtrum, Kent L. Gee |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Pulmonary and Respiratory Medicine
geography Service (systems architecture) Geospatial analysis geography.geographical_feature_category Data collection business.industry Computer science computer.software_genre Machine learning Training (civil) Machine Learning Pediatrics Perinatology and Child Health Artificial intelligence Metric (unit) Seasons Uncertainty quantification business Scale (map) computer Sound (geography) |
| Zdroj: | JASA express letters. 1(12) |
| ISSN: | 2691-1191 |
| Popis: | Modeling outdoor environmental sound levels is a challenging problem. This paper reports on a validation study of two continental-scale machine learning models using geospatial layers as inputs and the summer daytime A-weighted L50 as a validation metric. The first model was developed by the National Park Service while the second was developed by the present authors. Validation errors greater than 20 dBA are observed. Large errors are attributed to limited acoustic training data. Validation environments are geospatially dissimilar to training sites, requiring models to extrapolate beyond their training sets. Results motivate further work in optimal data collection and uncertainty quantification. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|