Results 11 to 20 of about 97,330 (246)

Investigating the impacts of technological innovation and renewable energy on environmental pollution in countries selected by the International Renewable Energy Agency: A quantile regression approach [PDF]

open access: yesCaspian Journal of Environmental Sciences, 2020
Investigating the factors affecting CO2 emissions has always been a challenge. One problem with existing studies is that these studies have been relied on mean-based regression approaches, such as ordinary least squares (OLS) or instrumental variables ...
Nasim Masoudi   +2 more
doaj   +1 more source

Smooth Quantile Normalization [PDF]

open access: yesBiostatistics, 2016
AbstractBetween-sample normalization is a critical step in genomic data analysis to remove systematic bias and unwanted technical variation in high-throughput data. Global normalization methods are based on the assumption that observed variability in global properties is due to technical reasons and are unrelated to the biology of interest. For example,
Hicks, Stephanie C   +5 more
openaire   +2 more sources

Realized Quantiles* [PDF]

open access: yesJournal of Business & Economic Statistics, 2021
This paper proposes a simple approach to estimate quantiles of daily financial returns directly from high-frequency data. We denote the resulting estimator as realized quantile (RQ) and use it to forecast tail risk measures, such as Value at Risk (VaR) and Expected Shortfall (ES).
Dimitriadis, Timo, Halbleib, Roxana
openaire   +2 more sources

Estimation of confidence intervals for quantiles in a finite population

open access: yesMathematical Modelling and Analysis, 2008
Confidence intervals provide a way of reporting an estimate of a population quantile along with some information about the precision of estimates. Some procedures that may be used to obtain estimates of confidence intervals for quantiles in a finite ...
Viktoras Chadyšas
doaj   +1 more source

Online Monitoring of Wind Turbine Operation Efficiency and Optimization Based on Benchmark Values

open access: yesIEEE Access, 2019
Improving the operational efficiency of wind turbines is an important way to enhance the competitiveness of wind power generation among new energy sources.
Yujiong Gu, Yue Xing
doaj   +1 more source

Estimating and Forecasting Conditional Risk Measures with Extreme Value Theory: A Review

open access: yesRisks, 2018
One of the key components of financial risk management is risk measurement. This typically requires modeling, estimating and forecasting tail-related quantities of the asset returns’ conditional distribution.
Marco Bee, Luca Trapin
doaj   +1 more source

Estimation des pluies journalières extrêmes supérieures à un seuil en climat tropical : cas de la Côte d'Ivoire

open access: yesPhysio-Géo, 2016
The extreme rainfalls are the weather hazards that cause much damage and many casualties. The estimation of extreme rainfall is therefore of great interest to anticipate disasters such as floods and allow thoughtful planning of the territory.
Gneneyougo Émile Soro   +4 more
doaj   +1 more source

A Quantile-Based Approach for Transmission Expansion Planning

open access: yesIEEE Access, 2020
Transmission expansion planning is an integral part of power system planning and consists of generating and selecting transmission proposals for maintaining sufficient transmission capacity to satisfy the electric load.
Jairo Cervantes, F. Fred Choobineh
doaj   +1 more source

A New Family of Expectiles and its Properties

open access: yesКібернетика та комп'ютерні технології, 2020
Introduction. This paper considers a risk measure called expectile. Expectile is a characteristic of a random variable calculated using the asymmetric least square method. The level of asymmetry is defined by a parameter in the interval (0, 1). Expectile
Viktor Kuzmenko
doaj   +1 more source

Investment Risk Measurement Based on Quantiles and Expectiles

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2018
In the presented research, we attempt to examine special investment risk measurement. We use quantile regression as a model by describing more general properties of the response distribution.
Grażyna Trzpiot
doaj   +1 more source

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