Zielonogórska Biblioteka Cyfrowa udostępnia 67 125 obiektów cyfrowych
Obiekt
Tytuł: Accounting for label shift of positive unlabeled data under selection bias
Contributor:
Korbicz, Józef (1951- ) - red. ; Uciński, Dariusz - red.
Group publication title:
Abstract:
We consider the scenario when two samples of positive unlabeled (PU) data are available and for the second sample the change in prior probability of classes occurs while distributions of predictors in classes remain the same (label shift setting). The selection of positive elements may be object-dependent. ; We study the properties of the underlying probabilistic structure under the novel augmented PU scenario, proving in particular that label shift occurs also for unlabeled populations. We introduce and investigate an estimator of prior probability for label-shifted population. Furthermore, in this case we construct and analyze behavior of Bayes classifier in this setting. It turns out to be a Bayes classifier for the unlabeled class with a modified threshold. This gives rise to its three empirical counterparts which are compared on benchmark data sets.
Publisher:
Zielona Góra: Uniwersytet Zielonogórski
Resource Identifier:
DOI:
Pages:
Source:
AMCS, volume 35, number 3 (2025)
Language:
License CC BY 4.0:
Rights:
Biblioteka Uniwersytetu Zielonogórskiego
Kolekcje, do których przypisany jest obiekt:
- Digital Library of Zielona Góra > Repository > Faculties > Faculty of Computer, Electrical and Control Engineering
- Digital Library of Zielona Góra > Repository > Types of work > Articles
- Digital Library of Zielona Góra > Repository > Scientific journals and UZ publishing series > International Journal of Applied Mathematics and Computer Science (AMCS) > International Journal of Applied Mathematics and Computer Science (AMCS) (2025)
Data ostatniej modyfikacji:
Sep 8, 2025
Data dodania obiektu:
Sep 8, 2025
Liczba wyświetleń treści obiektu:
41
Wszystkie dostępne wersje tego obiektu:
https://www.zbc.uz.zgora.pl/publication/102761
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International Journal of Applied Mathematics and Computer Science (AMCS), volume 35, number 1 (2025)
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International Journal of Applied Mathematics and Computer Science (AMCS), volume 35, number 2 (2025)
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International Journal of Applied Mathematics and Computer Science (AMCS), volume 35, number 3 (2025)
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International Journal of Applied Mathematics and Computer Science (AMCS), volume 35, number 4 (2025)
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| Nazwa wydania | Data |
|---|---|
| Accounting for label shift of positive unlabeled data under selection bias | Sep 8, 2025 |
Obiekty Podobne
Wawrzeńczyk, Adam Mielniczuk, Jan Witczak, Marcin - ed. Stetter, Ralf - ed.
Taheri, Sona Mammadov, Musa Korbicz, Józef (1951- ) - red. Uciński, Dariusz - red.
Knapczyk, Józef Kucybała, Piotr Jurczak, Paweł - red.
Błażewicz, Jacek Formanowicz, Piotr Wojciechowski, Paweł Zieliński, Cezary - ed.
Kurnatowski, Marek Kuczyński, Tadeusz - red.
Fabijańska, Anna Korbicz, Józef (1951- ) - red. Uciński, Dariusz - red.
Oleniacz, Grzegorz Skrzypczak, Izabela Świętoń, Tomasz Kuczyński, Tadeusz - red.
Kurnatowski, Marek Kuczyński, Tadeusz - red.
