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| Wykrywanie danych spoza dystrybucji× | Kwantyfikacja niepewności× | |
|---|---|---|
| Dziedzina≠ | Uczenie maszynowe | Symulacja |
| Rodzina≠ | Machine learning | Process / pipeline |
| Rok powstania≠ | 2017 | Seminal modern form: 2002 |
| Twórca≠ | Hendrycks & Gimpel | Norbert Wiener (polynomial chaos, 1938); extended to Wiener–Askey scheme by Xiu & Karniadakis (2002) |
| Typ≠ | Reliability and safety method for neural networks | Computational uncertainty analysis framework |
| Źródło pierwotne≠ | Hendrycks, D., & Gimpel, K. (2017). A baseline for detecting misclassified and out-of-distribution examples in neural networks. International Conference on Learning Representations. link ↗ | Xiu, D. & Karniadakis, G.E. (2002). The Wiener-Askey Polynomial Chaos for Stochastic Differential Equations. SIAM Journal on Scientific Computing, 24(2), 619–644. DOI ↗ |
| Inne nazwy≠ | OOD Detection, Novelty Detection, Open-Set Recognition, Dağılım Dışı Tespit | UQ, polynomial chaos expansion, PCE, Kriging surrogate |
| Pokrewne≠ | 3 | 9 |
| Podsumowanie≠ | Out-of-Distribution (OOD) detection is a set of techniques that identify when a deployed machine learning model receives inputs that differ significantly from its training data distribution. Introduced as a formal problem by Hendrycks and Gimpel in 2017, these methods enable models to flag unfamiliar inputs rather than silently produce unreliable predictions, making them foundational to trustworthy and safe AI deployment in high-stakes domains. | Uncertainty Quantification (UQ) is a computational framework for systematically measuring how uncertainty in the inputs of a model propagates into uncertainty in its outputs. Building on Wiener's polynomial chaos theory (1938) and formalised for general stochastic problems by Xiu and Karniadakis (2002), UQ uses two primary strategies: Polynomial Chaos Expansion (PCE), which represents the model output as a series of orthogonal polynomials matched to the input distributions, and Kriging (Gaussian process) surrogates, which replace an expensive simulation with a fast statistical approximation fitted to a small set of carefully chosen runs. |
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