Název: On kernel-based nonlinear regression estimation
Autoři: Kalina, Jan ; Vidnerová, P.
Typ dokumentu: Příspěvky z konference
Konference/Akce: International Days of Statistics and Economics /15./, Prague (CZ), 20210909
Rok: 2021
Jazyk: eng
Abstrakt: This paper is devoted to two important kernel-based tools of nonlinear regression: the Nadaraya-Watson estimator, which can be characterized as a successful statistical method in various econometric applications, and regularization networks, which represent machine learning tools very rarely used in econometric modeling. This paper recalls both approaches and describes their common features as well as differences. For the Nadaraya-Watsonestimator, we explain its connection to the conditional expectation of the response variable. Our main contribution is numerical analysis of suitable data with an economic motivation and a comparison of the two nonlinear regression tools. Our computations reveal some tools for the Nadaraya-Watson in R software to be unreliable, others not prepared for a routine usage. On the other hand, the regression modeling by means of regularization networks is much simpler and also turns out to be more reliable in our examples. These also bring unique evidence revealing the need for a careful choice of the parameters of regularization networks
Klíčová slova: kernel smoothing; machine learning; Nonlinear regression; regularization; regularization networks
Číslo projektu: GA21-05325S (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: The 15th International Days of Statistics and Economics Conference Proceedings, ISBN 978-80-87990-25-4

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/SI/kalina-0555825.pdf
Původní záznam: http://hdl.handle.net/11104/0330279

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-508537


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav teorie informace a automatizace
Konferenční materiály > Příspěvky z konference