Název: Transferring Improved Local Kernel Design in Multi-Source Bayesian Transfer Learning, with an application in Air Pollution Monitoring in India
Autoři: Nugent, Sh. ; Quinn, Anthony
Typ dokumentu: Výzkumné zprávy
Rok: 2021
Jazyk: eng
Edice: Research Report, svazek: 2392
Abstrakt: Existing frameworks for multi-task learning [1],[2] often rely on completely modelled relationships between tasks, which may not be available. Recent work [3], [4] has been undertaken on approaches to fully probabilistic methods for transfer learning between two Gaussian Process (GP) tasks. There, the target algorithm accepts source knowledge in the form of a probabilistic prior from a source algorithm, without requiring the target to model their interaction with the source. These strategies have offered robust improvements on current state of the art algorithms, such as the Intrinsic Coregionalization Model. The Bayesian Transfer Learning algorithm proposed in [4], was found to provide robust, positive\ntransfer. This algorithm was then extended to accommodate knowledge transfer from multiple source modellers [5]. Improved predictive performance was observed from increases in the number of sources. This report reviews the multi-source transfer findings in [5] and applies it to a real world problem of pollution modelling in India, using public-domain data.
Klíčová slova: Bayesian Transfer Learning algorithm; fully probabilistic methods; Gaussian Process; Intrinsic Coregionalization Model; pollution modelling
Číslo projektu: GA18-15970S (CEP)
Poskytovatel projektu: GA ČR

Instituce: Ústav teorie informace a automatizace AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný na externích webových stránkách.
Externí umístění souboru: http://library.utia.cas.cz/separaty/2021/AS/quinn-0550881.pdf
Původní záznam: http://hdl.handle.net/11104/0326186

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-508367


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