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Earthquake building damage detection based on synthetic-aperture-radar imagery and machine learning [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2023
This article presents a framework for semi-automated building damage assessment due to earthquakes from remote-sensing data and other supplementary datasets, while also leveraging recent advances in machine-learning algorithms.
A. Rao   +6 more
doaj   +1 more source

Backward Deep BSDE Methods and Applications to Nonlinear Problems

open access: yesRisks, 2023
We present a pathwise deep Backward Stochastic Differential Equation (BSDE) method for Forward Backward Stochastic Differential Equations with terminal conditions that time-steps the BSDE backwards and apply it to the differential rates problem as a ...
Yajie Yu   +2 more
doaj   +1 more source

Predicting take-up of home loan offers using tree-based ensemble models: A South African case study

open access: yesSouth African Journal of Science, 2021
We investigated different take-up rates of home loans in cases in which banks offered different interest rates. If a bank can increase its take-up rates, it could possibly improve its market share.
Tanja Verster   +3 more
doaj   +1 more source

Model Risk of Risk Models [PDF]

open access: yesSSRN Electronic Journal, 2014
This paper evaluates the model risk of models used for forecasting systemic and market risk. Model risk, which is the potential for different models to provide inconsistent outcomes, is shown to be increasing with and caused by market uncertainty. During calm periods, the underlying risk forecast models produce similar risk readings, hence, model risk ...
Ilknur Zer   +3 more
openaire   +3 more sources

Model risk on credit risk [PDF]

open access: yesRisk and Decision Analysis, 2016
This paper develops the Jungle model in a credit portfolio framework. The Jungle model is able to model credit contagion, produce doubly-peaked probability distributions for the total default loss and endogenously generate quasi phase transitions, potentially leading to systemic credit events which happen unexpectedly and without an underlying single ...
J. Molins, Eduard Vives
openaire   +4 more sources

Key factors to establish the ovalbumin-induced atopic dermatitis minipig model: age and body weight

open access: yesLaboratory Animal Research, 2022
Background Given its similar structure and immune response to the human skin, porcine is a good model for dermal studies. Here, we sensitized ovalbumin (Ova) on minipig back skin for 2–4 weeks to induce chronic atopic dermatitis (AD).
Young Kyu Kim   +5 more
doaj   +1 more source

Local Linear Approximation Algorithm for Neural Network

open access: yesMathematics, 2022
This paper aims to develop a new training strategy to improve efficiency in estimation of weights and biases in a feedforward neural network (FNN). We propose a local linear approximation (LLA) algorithm, which approximates ReLU with a linear function at
Mudong Zeng   +3 more
doaj   +1 more source

Modelling environmental risk [PDF]

open access: yesEnvironmental Modelling & Software, 2005
As environmental issues have become increasingly important in economic research and policy for sustainable development, firms in the private sector have introduced environmental and social issues in conducting their business activities. Such behaviour is tracked by the Dow Jones Sustainable Indexes (DJSI) through financial market indexes that are ...
Suhejla Hoti   +2 more
openaire   +2 more sources

Heart rate and oxygen uptake kinetics obtained from continuous measurements with wearable devices during outdoor walks of patients with COPD

open access: yesDigital Health, 2023
Objective Continuous physiological measurements during a laboratory-based exercise test can provide physiological biomarkers, such as heart rate (HR) and oxygen uptake (V̇O 2 ) kinetics, that carry clinically relevant information.
Joren Buekers   +6 more
doaj   +1 more source

Identification of necroptosis subtypes and development of necroptosis-related risk score model for in ovarian cancer

open access: yesFrontiers in Genetics, 2022
Background: ith the ongoing development of targeted therapy, non-apoptotic cell death, including necroptosis, has become a popular topic in the field of prevention and treatment.
Chen Ji, Yue He, Yan Wang
doaj   +1 more source

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