Articles with "asymmetric laplace" as a keyword



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A Value-at-Risk forecastability indicator in the framework of a Generalized Autoregressive Score with “Asymmetric Laplace Distribution”

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Published in 2021 at "Finance Research Letters"

DOI: 10.1016/j.frl.2021.102134

Abstract: Abstract In the present paper we discuss the forecasting ability of the VaR model, within the context of a Generalized Autoregressive Score (GAS). The proposed method considers an Asymmetric Laplace Distribution (GAS-ALD) to describe the… read more here.

Keywords: laplace distribution; distribution; generalized autoregressive; autoregressive score ... See more keywords
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A spatially constrained shifted asymmetric Laplace mixture model for the grayscale image segmentation

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Published in 2019 at "Neurocomputing"

DOI: 10.1016/j.neucom.2018.10.039

Abstract: Abstract In this paper, the grayscale image segmentation problem is investigated and a new mixture model with shifted asymmetric Laplace distribution component is proposed. Instead of the conventional Gaussian model, the shifted asymmetric Laplace distribution… read more here.

Keywords: mixture model; asymmetric laplace; image segmentation; model ... See more keywords