On the Two Facets to Conquer Wild Out-of-distribution Detection
- Research question
- Auxiliary data collected in the wild often contain samples that share semantics with known classes. This contamination introduces incorrect ID/OOD labels and turns the wild OOD set into a mixture of ID and OOD distributions, which can mislead conventional outlier-exposure training.
- Main findings
- We address the problem from complementary instance and distribution perspectives. We dynamically estimate more reliable ID/OOD indicators and resample the wild data using the known ID distribution to reduce interference from the latent ID subset. The resulting unified framework is supported by theoretical analysis and extensive evaluation across multiple wild OOD settings.
